Backend Developer jobs in Israel

DT (NASDAQ: APPS) is unifying the full mobile experience. Our growth platform powers the mobile ecosystem by bringing together advertisers, app developers, and device partners, to create a unique and premium value exchange, that results in a personalized and seamless mobile device experience. At DT, we move fast, think big, and build collaboratively. We believe great ideas can come from anywhere, and we trust our teams to take ownership, challenge convention, and make an impact from day one. Here, you’ll have the opportunity to grow your career while contributing to products and experiences used by millions around the world. With us, you will enjoy competitive compensation, equity awards, and a comprehensive benefits package designed to invest in your total well-being, all within a hybrid and flexible work environment. About the Role Digital Turbine operates on autonomous, outcome-driven engineering pods where technical ownership meets massive platform scale. We hire engineers, not single-language specialists: we care that you can reason deeply about distributed systems, choose the optimal tool for the problem, and ship low-latency, highly reliable software. As a Lead Backend Engineer, you will serve as a technical anchor and authority across our core platform architecture. You will be responsible for pushing complex computational logic, data modeling, and heavy algorithmic weight into robust, low-latency microservices that connect supply, demand, and marketplace workflows across Digital Turbine's ecosystem. In this role, your influence extends well beyond feature implementation—you will architect core backend systems, optimize throughput under massive concurrency, mentor engineering talent, and raise the standard for engineering excellence across the organization. About the Lead Backend Engineer Role • Architectural Leadership & Strategy: Lead the backend design, technical roadmap, and end-to-end execution of scalable, fault-tolerant platform services and APIs. Ensure system architectures are designed for long-term maintainability, predictability, and low-risk evolution • Heavy Backend & Algorithmic Engineering: Drive low-latency optimization and algorithmic problem-solving to manage massive throughput and real-time marketplace dynamics. Abstract system complexity away from downstream surfaces by building resilient, high-performance back-end services • API & Platform Ecosystem Design: Define, build, and maintain clean, well-governed APIs (REST, gRPC) and asynchronous messaging interfaces that integrate Digital Turbine's products into a unified, modular architecture rather than isolated silos. • Polyglot System Optimization: Evaluate and select the best language and toolstack for each technical domain (running across JVM, Go, Node, or other ecosystems), optimizing for performance, concurrency, and memory utilization • Production Excellence & Operational Ownership: Own backend services through their full production lifecycle. Implement advanced telemetry, distributed tracing, automated failover, and performance tuning to ensure high availability and SLA compliance • Technical Governance & Mentorship: Act as a force multiplier across pods by mentoring engineers, establishing backend design principles, leading rigorous code and architectural reviews, and promoting modern software engineering practices • Cross-Functional Collaboration: Partner directly with Product Leads, System Architects, and Data Engineering teams to convert complex business goals into clear technical strategies and execution plans About You as the Lead Backend Engineer • Experience: 8+ years of hands-on experience building, scaling, and operating high-throughput backend platforms in production, with demonstrated technical leadership on distributed systems (Radford P4 benchmark) • Algorithmic & System Design Mastery: Strong foundations in computer science, memory management, data structures, and distributed algorithms with a track record of solving high-concurrency and resource-optimization challenges • Polyglot Proficiency: Expert command of at least two backend ecosystems (e.g., Java, Go, Kotlin, Scala, Python, C++, TypeScript) with an objective, problem-first approach to choosing technical stacks • Data Engineering & Persistence: Deep experience with relational (PostgreSQL, MySQL) and distributed/NoSQL data stores (Redis, Cassandra, DynamoDB, Elasticsearch), including query optimization and data pipeline architecture • API & Distributed Systems Architecture: Demonstrated expertise designing enterprise-grade APIs, event-driven architectures (Kafka, RabbitMQ), and microservice integration patterns • Autonomy & Technical Drive: Proven ability to navigate ambiguity, drive technical consensus across teams, and independently deliver mission-critical software • Education: B.Sc. or M.Sc. in Computer Science, Software Engineering, or equivalent practical/military experience Preferred Qualifications • Cloud Native & DevOps: Proficiency with container orchestration (Docker, Kubernetes), cloud infrastructure (AWS or GCP), and automated CI/CD pipelines • AdTech & High-Scale Systems: Exposure to ad exchange mechanics, Real-Time Bidding (RTB), high-frequency trading platforms, or large-scale data analytics platforms • AI & ML Integration: Experience incorporating machine learning models, inference engines, or automated streaming pipelines into high-availability backend service workflows DT (NASDAQ: APPS) is a mobile growth platform that powers superior experiences and outcomes for advertisers, app developers, carriers, OEMs, and publishers worldwide. Our technology connects brands and apps with consumers across devices, apps, and mobile environments — helping partners drive awareness, acquisition, engagement, and monetization through intelligent, integrated experiences. Headquartered in Austin, Texas, DT operates globally across North America, EMEA, APAC, and LATAM. DT is an equal opportunity employer committed to fostering an inclusive and diverse workplace. We welcome people of different backgrounds, experiences, abilities, and perspectives, and believe teams with different points of view build better products, ideas, and experiences.

About PointFive PointFive finds the cost buried inside enterprise infrastructure, from the cloud to coding agents. We pioneered DeepWaste across cloud and data platforms, and we are now doing the same for AI token spend with TokenShift. Fanatics, H&M, Hertz, Nubank, Citizens Bank and other Fortune 500 companies use PointFive to see and cut what their infrastructure and AI actually cost. We have raised $96 million, most recently a $60 million Series B led by Accel. Engineering sits in Tel Aviv and our go-to-market team is focused on North America. PointFive Labs, our research arm, publishes original work on how infrastructure and AI actually get paid for. CRN named us one of the 10 hottest cloud computing startups of 2026, Forbes Israel put us on its Next Billion Dollar Startups list, and Redpoint selected us for its InfraRed 100, its ranking of the private companies shaping the future of cloud infrastructure. About the Role We're looking for an exceptional, hands-on technical leader to join our core engineering team as a true force multiplier and technological anchor for the company. You'll have the flexibility to drive high-impact initiatives from conception to production, own complex technical and AI domains end-to-end, or guide and level up a focused delivery team — operating with a high degree of autonomy in an ambiguous, fast-moving environment. What You'll Do • Drive strategic initiatives: lead complex technical projects, AI feature developments, and core architectural components with an ownership mindset. • Architect for AI & data at scale: design robust, scalable infrastructure and pipelines capable of handling massive volumes of cloud infrastructure data. • Bridge product, AI & tech: collaborate closely with Product Managers and data specialists to translate business roadmaps into high-performance technical systems. • Promote engineering excellence: establish development guidelines, lead design and architecture reviews, and raise the bar for code quality across teams. • Mentor & guide: act as a technical mentor to fellow engineers through hands-on collaboration, deep code reviews, and architectural consultation. What We're Looking For Must-have • 8+ years of experience in backend software engineering, with a proven track record designing, building, and operating large-scale cloud production systems. • Strong coding fundamentals in backend technologies such as Go, Python, Java, etc. • Experience leveraging AI coding agents (e.g., Claude Code) and implementing AI-oriented workflows to enhance team productivity and code quality. • Production-grade experience with AWS, containerization (Kubernetes/Docker), microservices, and distributed databases/data warehouses (e.g., PostgreSQL, Snowflake). • Practical experience working with large data volumes, data pipelines, or integrating AI/LLM technologies into production environments. • Demonstrated experience leading technical workflows, driving complex cross-team initiatives, or acting as a full-lifecycle domain owner. • A true independent operator who thrives in fast-paced environments and solves problems end to end. • Ability to build technical consensus, inspire peers, and drive alignment across stakeholders. Our Tech Stack Go, Python, Java, AWS, Kubernetes, Docker, PostgreSQL, Snowflake Why PointFive • Founders with a track record — Built and sold IntSights to Rapid7. Backed by top-tier investors with deep conviction in this category. • Category-defining product — DeepWaste detection and agentic remediation with clear, measurable ROI for both engineering and finance teams. • Early-stage leverage — Your work directly shapes the product, the culture, and the go-to-market playbook. • Real technical ownership — as a force multiplier on a core team, you'll set architecture and engineering standards across the R&D org, not just execute against someone else's.

Description CHEQ is the Intelligence Standard for the Human-AI Era, trusted by over 15,000 customers worldwide to confidently engage, transact, and thrive in this new era of digital transformation. Powered by award-winning cybersecurity technology, CHEQ offers the only integrated Traffic, Threat, and Identity Intelligence Engine, enabling companies to distinguish between legitimate users and bad actors - human, AI agent, or bot - and deliver granular, context-specific insights in real-time to marketing, commerce, and security platforms. CHEQ is a global company with offices in Tel-Aviv, New York, London and Tokyo. Our R&D organization is global, professional and strives for best practices and high efficiency. About the Role  This is an exciting opportunity for an experienced Senior Software Developer to join our growing R&D team and drive key architecture and development efforts. In this role, you will lead the design, build, and maintenance of scalable, production-ready systems for one of CHEQ’s main core engines and products. Working alongside high-performing engineers, you will take full ownership of features end-to-end: from database architecture and high-performance backend microservices to modern frontend applications. This is a high-impact position for a seasoned engineer looking to influence product direction and solve complex technical challenges in a fast-paced, global environment. Our stack is NodeJS, Typescript , Python and more. microservices on Kubernetes in AWS, with PostgreSQL, MySQL, ClickHouse, Redis, Grafana, and GitLab CI/CD. We embrace AI-assisted development—engineers work daily with tools like Claude Code across coding, code review, and system design. What You’ll Do • Design and develop and maintain new and existing features across the core engine and other products in the team. • Collaborate with Product Managers and Designers to define product specifications and translate them into high-quality technical solutions. • Promote best practices in testing, performance, and security. • Participate in the on-call rotation and support production issue investigations and validations. Requirements • Education: Bachelor's degree in Computer Science, Software Engineering,BA or BsC from a recognized university - A Must • Core Technical Skills: Advanced knowledge in NodeJS and TS - A Must - 7 years of experience and above. Fullstack capabilities in react/vue - An advantage. • Cloud Exposure: Solid foundational understanding of cloud environments (AWS, GCP, or Azure) • Database experience - worked with both relational and non relational databases. Can be SQL, Clickhouse, Snowflake and for noSQK - MongoDB, Couchbase, DocumentDB or DynamoDB. • Adaptability & Drive: Strong autodidact with a proven ability to learn complex concepts quickly and independently • AI-First Mindset & Execution: Throughout your work experience in the last 2 years - you consistently apply an AI-first approach to problem-solving. (not treating AI as a simple autocomplete tool but leverages modern AI tooling, across the entire software development lifecycle) from rapid prototyping and architecture design to automated unit test generation and debugging. • Work Ethic: Highly passionate about technology, results-driven, proactive, and committed to delivering high-quality work. • Collaboration: Excellent team player with strong communication skills and a collaborative mindset

About Qedma Qedma is at the cutting edge of quantum computing, developing innovative software that reveals the hidden quantum signal, unlocking the potential of quantum computing. About the role: Qedma is looking for a Senior Backend Engineer to build and scale the software infrastructure powering our quantum computing solutions. In this role, you'll work on the core foundations of our platform, developing services that run across cloud and on-premises environments, managing distributed workflows, and integrating with cutting-edge quantum hardware. You'll take ownership of key backend components, from APIs and orchestration services to deployment pipelines and production infrastructure. You'll collaborate with talented engineers, leading researchers, and global technology partners, to deliver reliable, scalable software used by research centers and data centers worldwide. Responsibilities Design, develop, and maintain core backend services and APIs. Build and optimize distributed workflows and job orchestration systems. Develop and maintain cloud-native infrastructure and services running across cloud and on-premises environments. Build and improve CI/CD pipelines, containerized deployments, and infrastructure automation. Integrate our software with leading quantum computing platforms and hardware providers. Take end-to-end ownership of features and services, from design and implementation through deployment and production operations. Collaborate with engineers, researchers, and external technology partners to solve complex technical challenges. Requirements 5+ years of professional experience developing backend systems, including at least 2 years with Python. Strong backend engineering skills, including API design, distributed systems, and relational databases. Hands-on experience with Docker, Kubernetes, Terraform, and CI/CD pipelines. Experience with AWS or another major cloud provider. Ability to design, implement, and maintain reliable, scalable, and secure production systems. Strong problem-solving skills, independent ownership, and the ability to collaborate effectively across teams. Advantages: Experience working in a startup environment. Experience with AWS, Temporal, and PostgreSQL. Experience with on-premises deployments or hybrid cloud environments. Background or interest in scientific computing, mathematics, or physics. No prior experience in quantum computing is required.

Stigg The Usage Runtime for AI Products But what is it exactly? Built by former New Relic engineers, Stigg provides the infrastructure AI companies need to meter, monetize, and govern product usage at scale. Our real-time usage runtime enables companies to manage entitlements, usage metering, credits, budgets, and access controls - all without building complex infrastructure from scratch. So what? Why now? AI is fundamentally changing how software is consumed and monetized. Every API request, inference, or agent action can generate real cost, while traditional billing systems only report usage after it happens. Stigg helps AI companies make real-time decisions about what each customer, user, team, or agent is allowed to do - before the cost is incurred. This gives engineering teams the control they need, while allowing Product and GTM teams to quickly introduce and evolve new monetization models. Are you funded? 💰 We are! Stigg is backed by Red Dot Capital Partners, Unusual Ventures, and Emerge. Our platform is trusted by leading companies such as Miro, Webflow, PagerDuty, Upwork, Productboard, Qlik, and HackerOne. Team → Product → Traction - where you at? 🐜 A lean global team of around 40 people 🏠 Headquartered in Tel Aviv, with team members across Israel, the US, and Europe 🚀 Launched Stigg 2.0 - the Usage Runtime for AI Products ⚡ Built to process over 1M usage events per second and make real-time decisions in milliseconds We’re looking for an exceptional Infrastructure Backend Engineer! We’re looking for a Backend Engineer to join our Metering & Infrastructure team and help build the infrastructure that powers the next generation of AI products. Stigg sits directly in the request path of our customers’ applications, making real-time decisions about entitlements, credits, usage, and access. This makes performance, scalability, and reliability critical to everything we build. You’ll work on our metering infrastructure, built to handle 1M events per second, including remote deployments running in our customers’ cloud environments. You’ll also partner closely with our engineering teams to help them move faster, improve the developer experience, and build the tools and infrastructure they need to ship software quickly and reliably. What will be your primary goals 🎯 • Lead infrastructure initiatives and continuously improve our SDLC, CI/CD pipelines, and cloud infrastructure. • Build and scale our high-throughput, low-latency metering pipeline. • Build and maintain BYOC (Bring Your Own Cloud) deployments in customers’ cloud environments. • Improve the developer experience by building tools and infrastructure that help our engineering teams move faster and ship with confidence. • Play an active role in shaping our architecture and driving key technical decisions. What we think can help you achieve your goals 🏆 • 3+ years of backend software engineering experience, with a strong focus on infrastructure. • Proven experience designing and building APIs, microservices, and distributed systems. • Strong understanding of messaging systems and event-driven architectures. • Hands-on experience building and maintaining CI/CD pipelines. • Experience working with Docker, Kubernetes, and cloud infrastructure, preferably AWS. • Daily hands-on experience with AI coding tools (Claude Code, Cursor) and agentic development workflows. You Are • Excited about building new products and systems from the ground up. • Pragmatic, curious, and comfortable expressing a strong technical opinion. • Fast learner who can adopt new technologies from research to production. • An excellent communicator and collaborator. • Proactive and highly motivated. Bonus Points 🌟 • Experience with Infrastructure as Code (IaC) tools like Terraform or Pulumi. • Experience building SDKs, CLI tools, or internal developer tooling. • Experience with Kafka and stream processing frameworks like Apache Flink. • Experience building and operating high-scale, low-latency systems. • Experience working on infrastructure or platform teams with a strong focus on developer experience (DevEx). • Hands-on experience with Node.js and TypeScript. • Experience with Argo CD and GitOps workflows. Now to the important details Perks Stack 🎁 Stock options, a competitive salary, a new MacBook Pro, plenty of SWAG, and a fun, dog-friendly office. ⌨️ We believe in choosing the right tools for the job. Our stack includes K8s, ArgoCD, Kafka, Apache Flink, TypeScript, Node.js, NestJS, GraphQL, PostgreSQL, SQS, and AWS. Hybrid 🏠 We work 4 days together, 1 day from home. Location 📍 Our office is located in Tel Aviv, between Rothschild Boulevard and Neve Tzedek. We also help our team with commuting and parking.

Description Who we are: WeSki is a self-service ski trip booking platform built for the modern traveller. Our vision is simple, to make great ski experiences available to everyone. We enable customers to build and book a fully custom ski holiday in minutes, combining flights, accommodation, transfers, ski passes, equipment and lessons in one seamless flow. Behind the scenes, our technology evaluates millions of trip combinations in real time. We dynamically connect inventory from thousands of suppliers, automatically optimise which components we bundle together, and present only options that really work. What used to take hours of research and coordination now takes a few clicks and finds much better results for the users. Every trip is fully customisable. Customers get the flexibility of building it themselves, with the security, protection, and support of a regulated holiday provider. Each trip is dynamically orchestrated in real time, with dependencies automatically managed across suppliers at scale, spanning 310 resorts in 20 countries across Europe, North America, Asia and Oceania. From booking to return, we manage the entire journey, so customers can relax and enjoy their holiday. We’ve recently crossed $100M in annual sales, including a $1M single day. Growth is accelerating, unit economics are strong, and the business funds its own growth. High transaction volume, complex infrastructure, real impact, delivered by a small, high-performing team. We operate in a ~$80B global ski market with no technology-native market leader. The industry is still dominated by traditional tour operators, with business models and infrastructure that have barely evolved in decades. This is a rare opportunity to define the future of ski travel at global scale. Key Responsibilities: • Design, develop, and evolve core backend systems and services, with an emphasis on scalability, performance, and maintainability. • Lead complex technical initiatives from concept through production, making architectural decisions that drive long-term impact. • Take end-to-end responsibility for backend production systems, including monitoring, troubleshooting, performance optimization, incident resolution, and infrastructure reliability. • Maintain high engineering standards through code reviews, testing, documentation, and best practices. • Continuously evaluate and adopt modern development tools to improve developer productivity and system quality. • Provide technical leadership and mentorship across the backend domain, influencing architectural standards and engineering culture. Requirements • 10+ years of backend development experience, with a strong focus on Node.js and distributed systems architecture. • Demonstrated ability to influence technical direction and drive architectural decisions. • Thrives in a fast-paced startup environment, demonstrating strong ownership, rapid execution, and a results-driven mindset. • Hands-on experience designing, building, and operating scalable microservices-based systems in production, including databases, caching layers, messaging systems, and high-traffic APIs. • Proven ability to architect, deploy, and operate production-grade cloud infrastructure (AWS/GCP), including networking, observability, CI/CD, security best practices, and cost optimization. • Experience integrating AI services or LLM-based workflows into production backend systems. • Strong communication and collaboration skills, with the ability to work effectively across teams. • Skier or snowboarder - always a plus.

Join Ovalix and Help Secure the AI Era We're building the platform that gives enterprises visibility, governance, and protection across their AI ecosystem, from public GenAI tools and homegrown apps to coding assistants and autonomous AI agents. We're looking for people who want to solve real enterprise AI security challenges and move fast with a friendly, focused team. Responsibilities Own our backend end-to-end — from architecture to production — on a Python, AWS, and Kubernetes stack that secures how organizations use AI. Small senior team, real ownership, fast shipping. Requirements 5+ years of backend development experience, with strong Python. Proven experience designing, building, and operating production services and APIs — databases, cloud (preferably AWS), Docker/Kubernetes. Ownership-driven and comfortable with the pace and ambiguity of a startup.

Description About Port At Port.io, we are building an open and flexible Agentic SDLC Platform for modern engineering organizations. Following our recent $100M Series C funding round, we are in a phase of rapid hypergrowth with strong enterprise momentum. We act as the central nervous system for engineering, enabling platform teams to unify their stack and expose it as a governed layer through golden paths for developers and AI agents. By combining rich engineering context, workflows, and actions, we help organizations transition from manual processes to autonomous, AI-assisted engineering workflows while maintaining control and accountability. As a product-led company, we believe in building world-class platforms that fundamentally shape how modern engineering organizations operate.  What you'll do: At Port, we're a platform by developers, for developers. Your role will encompass end-to-end design, implementation, and daily feature delivery, with a heavy focus on building the integrations infrastructure that power our portal. Design, build, and maintain robust, scalable connectors and integrations - connecting external developer tools directly into Port at scale. Beyond technical work, you'll assist in planning, grow our engineering team's skills, and help recruit new talent. By contributing to our open-source projects, you will also take part in maintaining open sources and collaborate with developers around the world. At Port, you won't just build; you'll shape the future of developer experiences. Who You'll work with: As a Backend Engineer at Port, you'll be joining a collaborative and dynamic team of talented and experienced engineers where creativity and innovation thrive. You'll closely collaborate with our dedicated Product Managers, working hand in hand to bring our Agentic SDLC platform to life. Your input and expertise will have a significant impact on the product's development, as it's tailor-made for developers like you. Additionally, you will have the opportunity to work closely with our customers and engage with our product community. Your insights and interactions with them will play an important role to ensure we deliver the best product possible. Together, we'll continue to empower platform engineers and developers worldwide, providing them with the tools they need to create seamless and robust Agentic SDLC Platform. Join us in our mission to revolutionize the developer experience! Requirements • 6+ years of professional software engineering experience. • Strong, proven proficiency in Typescript. • Experience in designing and developing complex systems, highlighting your ability to tackle challenging technical problems. • Experience in End-to-end ownership from concept to production. • Experience in dealing with scale and performance related challenges. • A collaborative team player skilled in driving initiatives to successful achievements, with a can-do approach. • Strong written and verbal communication skills in English and Hebrew. Advantages: • Experience with Golang / Python. • Experience in DevOps related tools. • Experience in PostgreSQL, MongoDB, Kafka, SQS. • Experience in Opensearch and/or Redis. • Experience with AWS cloud platform.

We’re looking for exceptional and experienced Senior Backend JavaScript Developers to join our team, with deep expertise in Node.js and building production-grade backend services. In this role, you will take end-to-end ownership of product and feature development, building SaaS applications and services in a microservices architecture, using modern technologies in a fast-paced and professional environment. Tech Stack: Node.js, JavaScript, MongoDB, Kubernetes, Redis (including Redis Streams) Responsibilities End-to-end feature development, from design and implementation to production rollout and ongoing improvements. Build and operate backend services with a strong focus on scalability, reliability, and performance in a microservices environment. Participate in system design and architecture planning, and contribute to technical decisions across the team. Work with asynchronous, message-driven components using Redis Streams, including debugging, tuning, and ensuring resilient processing. Write high-quality, maintainable code with appropriate test coverage; participate actively in code reviews. Collaborate effectively with teammates and cross-functional stakeholders to deliver high-impact outcomes. Continuously learn, adapt, and stay up-to-date with best practices and evolving technologies. Requirements 5+ years of hands-on software engineering experience, including 3+ years focused on backend JavaScript / Node.js development. Proven experience building and maintaining SaaS applications and/or production backend services. Experience working in a microservices architecture (service boundaries, APIs, reliability patterns). Hands-on experience with MongoDB and Redis (including practical experience with Redis Streams or similar pub/sub/stream processing). Familiarity with Kubernetes and containerized deployments. Good understanding of system design fundamentals: APIs, data modeling, performance, scalability, and reliability. Fast learner, able to work both independently and as a team player. Proficiency in English, with strong written and verbal communication skills. Nice to Have: Experience with AWS and cloud-based production environments. Experience with observability tooling (logging/metrics/tracing) and incident response. Experience with scraping, browser automation, Playwright, Puppeteer, or Selenium.

About this role Mize is a dynamic Fintech-travel startup headquartered in Tel Aviv, with a global presence in Argentina, Spain, the UK, the US, and India. Leveraging cutting-edge technology, Mize addresses evolving challenges in the travel industry, generating an impressive $12 Billion in sales annually. As a pioneer in the field, we are committed to delivering real financial value to our extensive network of clients. Our R&D team is seeking a Backend Developer to help construct and expand our core financial platform. In this role, you will collaborate with a talented team to optimize high-impact transactional systems—covering client billing for captured savings, invoice creation and collection, as well as payment reconciliation and processing. What we're looking for 3+ years of professional C# development experience. Solid understanding of .NET and databases such as SQL Server and Couchbase. Familiarity with SQL Server ORMs, specifically EF6 or similar frameworks. Proven capability in integrating external REST APIs. Fluent English Excellent people skills. A collaborative team player with organizational, critical-thinking, and problem-solving abilities Advantage: Background working with billing systems like Netsuite, Bluesnap, or similar is a strong plus. Familiarity with TypeScript and frontend frameworks is a plus.

Description At Tikal, seniority isn’t the end of learning - it’s the start of your next leap. Here, you define your tech journey: choose the technologies you want to master, set your own growth path, and gain the hands-on experience to become a Backend Tech Lead. Work with top-tier companies, tackle complex engineering challenges, and leave your mark on large-scale systems - all while staying at the forefront of technology. This is a hybrid position. What You’ll Do: • Architect, design, and build high-performance, scalable backend systems. • Work with advanced algorithms, data structures & distributed computing. • Design and implement robust, secure APIs. • Use best practices to ensure flexibility, extensibility, and maintainability. • Develop SQL & NoSQL persistence solutions with optimal data modeling & performance. • Build and scale cloud-based infrastructures. Requirements What We’re Looking For: • 7+ years of experience in Backend engineering • 5 years Python experience or at least 2+ years of Python experience and 3+ years with Java /nodejs. • Proven experience working in an AI-assisted development environment, defining high-level technical goals and leveraging autonomous AI agents (e.g., Cursor, Copilot, Devin-style tools) to execute multi-file implementations, while maintaining ownership of architecture, design decisions, code quality, and final validation. • Experience with Microservices, distributed processing & messaging. • Cloud expertise: AWS/, GCP/ Azure • Experience with NoSQL (MongoDB, ElasticSearch, Druid, Redis). • Experience with Docker and Kubernetes • Self-driven, proactive, and passionate about doing things the right way. Sounds like your next challenge? Let’s talk.

Description We are 48% of breaches now come through vendors. Yet most companies still manage vendor risk through certifications and questionnaires, essentially trusting what vendors say about their security. Lema changes that. We analyze every vendor like a vulnerability researcher would: how could an attacker use this vendor to get in, and what could they reach? We’re turning vendor risk from a paperwork exercise into a true security discipline. Backed by Team8, Salesforce Ventures, and F2, and already trusted by leading enterprises, Lema is entering hypergrowth and tripling our team to build a category-defining platform. We move fast, with radical ownership, transparency, and high impact. More about Lema: • Lema.ai website • Business Insider - Cybersecurity startup Lema has come out of stealth to raise $24 million • Team8 - Why We Invested In Lema About The Role We’re looking for a a senior backend engineer with 6+ years of experience, playing a key role in building impactful, user-centric products from the ground up. As part of the company’s early engineering team, you’ll help shape both the product and the engineering culture, own backend architecture, lead end-to-end feature development, and drive technical excellence while collaborating closely with product, design, and infrastructure in a fast-growing environment. What You’ll Do • Define and evolve the backend architecture, infrastructure and development best practices for a fast-growing team. • Own features end-to-end - from concept and design discussions to implementation, deployment and observability. • Solve complex challenges in distributed systems, event-driven architectures and real-time data pipelines. • Continuously improve developer workflows - identify friction, integrate new tools, automate repetitive tasks and champion engineering excellence. • Lead and mentor a small team of engineers: drive planning, break down work, ensure quality delivery and help hire exceptional talent. • Collaborate with experienced peers - engineers, PMs and designers - who’ve built large-scale systems at top-tier companies. • Here are some of the technologies we work with: Golang, Python, Protobuf, React, Typescript, Kafka, Postgresql, Redis, Kubernetes, Terraform and AWS Requirements What You Bring • A seasoned backend engineer (4+ years) who thrives on building impactful, user-centric products from the ground up. • Experienced in designing and scaling modern microservices architectures (both BE and FE integration). • Capable of taking complex features from design to deployment, owning every stage of the backend lifecycle - while guiding others to do the same. • Pragmatic about code quality: confident refactoring, simplifying and deleting code when needed. • Comfortable leading code reviews, defining engineering standards and collaborating across product, design and infrastructure. Why Join Lema AI • Impact: Build a category-defining platform that safeguards how modern businesses operate. • Ownership: Join a culture that gives you full context, autonomy, and trust to drive outcomes. • Compensation & Benefits: Competitive salary, equity package, and additional perks • Velocity: Work with exceptional peers in a high-energy, low-bureaucracy environment. • Growth: Shape a company that’s scaling rapidly, backed by Tier 1 investors and visionary customers.

BioCatch is the leader in Behavioral Biometrics, a technology that leverages machine learning to analyze an online user’s physical and cognitive digital behavior to protect individuals online. BioCatch’s mission is to unlock the power of behavior and deliver actionable insights to create a digital world where identity, trust, and ease coexist.Today, 32 of the world's largest 100 banks and 210 total financial institutions rely on BioCatch Connect™ to combat fraud, facilitate digital transformation, and grow customer relationships.. BioCatch’s Client Innovation Board, an industry-led initiative including American Express, Barclays, Citi Ventures, and National Australia Bank, helps BioCatch to identify creative and cutting-edge ways to leverage the unique attributes of behavior for fraud prevention. With over a decade of analyzing data, more than 80 registered patents, and unparalleled experience, BioCatch continues to innovate to solve tomorrow’s problems. For more information, please visit www.biocatch.com. We are looking for a Backend Engineer to join our Data Engineering team and build backend components and data-focused infrastructure for large-scale data processing. You will design and maintain core microservices and data pipelines that power our products and provide reliable data sources to teams across the company. Your work will focus on customer-facing features that depend on complex data assets, with an emphasis on reliability, clear SLAs, observability, and flexibility. What you will do Design and implement infrastructure for high-volume data processing Continuously improve performance, cost, and reliability at scale Collaborate with frontend teams on customer-facing features and applications Work with stakeholders across the company to ensure data processes meet their requirements Maintain high engineering standards: testing, observability, clean code, and solid CI/CD practices What you will do • Design and implement infrastructure for high-volume data processing • Continuously improve performance, cost, and reliability at scale • Collaborate with frontend teams on customer-facing features and applications • Work with stakeholders across the company to ensure data processes meet their requirements • Maintain high engineering standards: testing, observability, clean code, and solid CI/CD practices Requirements • 3–5 years of experience in backend development • Strong hands-on experience with Python • Experience building high-scale, low-latency, robust services deployed across multiple AKS namespaces/regions with different configurations • Experience with at least one major cloud platform (Azure preferred) • Advantages / Nice to Have • Experience with modern data platforms – Snowflake / Delta Lake / Iceberg • Experience with distributed data processing (Databricks, PySpark, or similar) • Experience with leadership — team management, project ownership, or task management • Personal Attributes • Ownership mindset and accountability • Passion for performance, scale, and cost-efficiency • Strong communication skills and effective collaboration with cross-functional teams

Description OX Security is securing the AI-driven SDLC from prompt to production. We're building the next generation of security technology for a world where AI is changing how software is built, deployed, and attacked. We're looking for a strong Senior Backend Engineer to join VIBESEC, the team building our AI security products. This is one of the most exciting places to be at OX right now: a brand-new product, in a domain that changes every day, with real customers already shaping what we build next. You'll join a small, senior, globally distributed team of six engineers across Europe, Israel and Argentina. You'll own features end to end, from the first conversation with Product through design, build, and production. Because the domain is new, your technical judgment will shape the architecture rather than follow it. If you want to build something genuinely new, at the point where AI and security meet, let's talk. Responsibilities What You'll Be Doing • Design and build the backend of our AI security products in Node.js and TypeScript, running across cloud environments and endpoints • Own features end to end, from business requirements through architecture, implementation, delivery and production quality • Work closely with Product and directly with customers, turning fast-moving business needs into robust technical solutions • Partner with Product, Design, and other engineering teams on complex cross-company projects • Make and defend architectural decisions in a domain with no established playbook, where the right answer this quarter may not be the right answer next quarter • Set the technical bar for a senior team, and raise it through code reviews, design discussions and examples Requirements What We're Looking For • 6+ years of hands-on backend development experience • Strong, production-level experience with Node.js and TypeScript (must-have) • Proven ability to design and deliver solutions for complex, distributed systems • Strong ownership and accountability, with high independence and the ability to manage multiple stakeholders • A track record of taking features from requirement to production, with production-grade code • Comfort with ambiguity and rapid change, and the judgment to know when to move fast and when to build for the long run • Excellent English and strong communication in a fully distributed team • The "AI-First" Spark: You are an early adopter of AI technologies and are passionate about finding ways to use AI to improve developer experience and system performance. Bonus Points for : • Experience with microservices architecture • Background in cybersecurity or endpoint agent development • Experience delivering customer-value-driven products in fast-paced startup environments • Hands-on work with LLMs, AI agents or AI-powered product features Benefits Package • Hybrid Work mode - 2-3 days in the office • Unlimited Paid Time Off (PTO): We offer unlimited vacation because we trust you to take time when you need it and to manage your time effectively. We value work-life balance and want you to recharge. • Cibus • Gifts on your birthday & Holidays.

Adaptive6 is the leading Cloud and AI Cost Governance platform. From complex cloud architectures to modern AI workloads and AI agents, we empower engineering and FinOps teams to take full control of their enterprise spend. We don't just report numbers: we provide actionable intelligence and continuous cost optimization that directly impacts the bottom line. Trusted by industry giants like Ticketmaster and Bayer (who achieved a 20x ROI), our customers consistently see massive value within days. Backed by top-tier investors, Adaptive6 has raised $44M in total funding to support our aggressive global expansion. We are scaling rapidly, and we're looking for the next backend developer to join our team! In This Position You Will Help architect and develop core backend components that power our Cloud Cost Governance platform, from early product concepts to production-ready features. Take full ownership of product requirements end-to-end, including design, development, testing, and delivery of features. Work closely with engineering teammates, product managers, and solutions engineers to deliver robust, scalable capabilities and tackle hard technical problems. Research, experiment with, and build innovative solutions to detect and remediate cloud inefficiencies, making cloud usage smarter and leaner. Combine a strategic view of system design with a hands-on ability to dig into technical details and fine-tune performance. Engage directly with enterprise customers to understand their evolving cloud cost challenges, gather feedback, and help shape product direction based on real-world needs. Requirements 7+ years of backend engineering experience with modern programming languages (e.g., Go, Python). Strategic thinker who can deconstruct complex problems and deliver pragmatic, scalable solutions. Solid track record designing and implementing distributed systems using microservices and cloud-native patterns. Background with cloud platforms (AWS, Azure, GCP). Background in building large-scale B2B SaaS systems on public cloud infrastructure. Self-driven, curious, and takes initiative.

Description About Buildots Buildots is the world’s most advanced construction intelligence platform. By comparing schedules and BIM against site reality, its advanced AI transforms granular data into insights that unlock operational excellence. Over 100 global giants trust Buildots, including HOCHTIEF, Bouygues, Intel, NCC and VINCI Construction. Its impact is proven at every scale, from multi-family projects to multi-gigawatt data centers. With $297M raised, this is your opportunity to join a high-growth company that's already closing in on unicorn status. About the Role We’re looking for people who are passionate about solving problems, don’t shy away from leading features and projects, and are sharp and creative enough to find outside-the-box solutions to our wide range of product initiatives What you'll do: • Design & Scale Core Pipelines: Architect, implement, and deploy our complex, highly-scalable data processing pipeline focused on analyzing massive amounts of data. • Tackle Diverse Data Challenges: Work hands-on with vast construction data—ranging from scheduling and BIM to video processing and 3D model analysis. Architect and integrate various Computer Vision and data processing algorithms into a robust, cloud-based production environment to generate unique insights. • Ensure Performance: Maintain a relentless focus on performance, reliability, and scalability as you process data from real-world construction sites globally. • Tech Stack Focus: Develop primarily using Python in a modern cloud infrastructure (AWS preferred). • Advanced AI Integration: "Skilled in pushing AI tools to the next level- moving from simple chat interfaces to building autonomous scripts, agents, or custom workflows that optimize system performance and reliability. • Ownership from 0 to 1: You will have real influence over our architecture and tooling. We want engineers who care about shaping what we build and how we build it, ensuring performance and observability are baked in from day one Requirements: • A seasoned backend engineer (7+ years) with strong Python experience. • BSc. in Computer Science/Electrical Engineering, or equivalent. • Proven expertise in large scale systems, specifically focusing on backend development, systems architecture, and high-volume data processing. • Experience with high-performance, decentralized code development, and parallel processing. • AI-Native Engineering: You are an AI-native engineer who leverages LLMs and agentic tools (like Cursor, Copilot, or Claude) not just for code completion, but as a core architectural partner to accelerate the entire development lifecycle allowing you to focus on the critical things. • Comfortable working in a dynamic environment where your architectural decisions have company-wide impact. • Have a proven track record of being a collaborative team player! • Skilled in AWS, Docker/Kubernetes, and message queuing/streaming systems (SQS, Kafka, or RabbitMQ). • You care deeply about writing clean, testable code and building observable systems (monitoring, logging, metrics). • Experienced with CI/CD, observability, and cloud-native design. • Experience with Databases (relational and/or NoSQL). Nice to have: • Experience with 3D rendering or Computer Vision domains. Why join us? Buildots is building the AI layer construction will run on, and we're moving at a pace that's redefining what growth looks like in this industry. We're partnering with some of the largest builders and investors on the planet to bring intelligence to a market worth trillions of dollars – and hiring smart, ambitious people to help us do it. Own it from day one. We give our people responsibility and autonomy. You get the chance to take the initiative and get the job done. Grow as fast as we do. The company's trajectory sets the ceiling, and right now there isn't one. Join an elite team. We combine world-leading AI, computer vision and construction expertise. This unique blend helps us innovate faster and better than others. Share what you build. Every employee gets the chance to hold equity. You're invested in the outcome, not just working toward it. Requirements • backend engineer (7+ years) • Python/ Java/ Go experience. • Cloud experience (AWS/ GCP/ Azure) • Docker/Kubernetes • BSc. in Computer Science/Electrical Engineering, or equivalent. • Proven expertise in large scale systems, high-performance, decentralized code development, and parallel processing. • AI-Native Engineering • Experience with 3D rendering or Computer Vision domains- advantage.

Senior Infra Backend Engineer Company Overview Singular is the leading marketing measurement platform trusted by 1,000+ global brands, including Apple, Microsoft, Uber, DoorDash, Nike, EA, DraftKings, and Robinhood. Ranked as the #1 MMP by G2 for 3 years in a row, Singular enables marketers to make smarter user acquisition decisions and analyze the impact of every ad dollar with full-funnel marketing analytics, advanced cross-device attribution (mobile, web, PC+Console), best-in-class ad fraud prevention, and automatic data exports directly into your BI tools. Singular is also revolutionizing campaign and creative analysis with recent integrations and partnerships with ChatGPT, Claude, and Gemini that deliver marketers with instant, AI-powered marketing insights – no dashboards or SQL needed. Singular has teams in 12 countries and employees in 65 cities across the globe, including NYC, LA, SF, Austin, Buenos Aires, São Paolo, London, Berlin, Barcelona, Tel Aviv, Bangalore, Beijing, and Seoul. We have raised $50M from Norwest Venture Partners, General Catalyst, Titanium Ventures, and other top-tier Silicon Valley investors. We have a leading product, an innovative team, and hundreds of satisfied customers in a growing market. Our business and teams are scaling, and we are looking for ambitious, eager, creative, and innovative individuals to join us and help us dominate the marketing measurement space. About The Role We seek a skilled Senior Infra Backend Engineer to join our R&D office in Tel Aviv, working in a hybrid and flexible model. You’ll collaborate with a top-tier R&D team and take your professional growth to the next level. Our backend infra teams work mainly with Python and Go, but we welcome talented backend engineers from any language background. Example Projects • Researching and running POCs of new technologies to select the optimal solution for system requirements. • Migrating massive amounts of user-level data into Iceberg, while keeping scale and cost efficiency in mind. • Designing and implementing a robust pipeline capable of ingesting billions of real-time events daily (hundreds of thousands per second). • Exploring and choosing database and streaming technologies to support a rapidly growing clientele base. • Leading the design and development of a new streaming ETL product with low memory footprint and efficient processing. Key Responsibilities • Design and build scalable pipelines processing billions of events daily. • Dive deep into infra technologies and optimize them at scale. • Lead major efforts from idea initiation → design → implementation. • Tackle complex challenges in scalable architecture within our AWS environment. • Integrate and leverage top industry technologies such as Kafka, Iceberg, DynamoDB, Postgres, EMR, Kubernetes, Druid, Snowflake, and more. What You Bring • 5+ years of hands-on experience in backend development. • Extensive experience building scalable, high-performance systems. • Experience with AWS, Kubernetes, and large-scale environments is a plus. Why Join Us? At Singular, you’ll be part of a talented group of engineers solving complex, large-scale infra challenges. We believe in a healthy, positive culture where knowledge is shared and people enjoy the journey together. We’re proud to be an equal opportunity employer, committed to hiring diverse top talent to build world-class products.

ABOUT UNIT Money is fundamental to how people and businesses operate, but it often sits outside the software they use every day. Unit changes that. Unit is a financial infrastructure platform that enables technology companies to store, move, spend, and lend money inside their product. Unit processes over $100B in annual transaction volume, serves 2M+ accounts, and handles 11M+ API calls daily for category-defining companies including Wix, Highbeam, Wayflyer and Relay. Today, leading technology companies use Unit to create smarter money experiences, deepen customer relationships, and unlock new revenue. We’re building the infrastructure that will make financial products a native part of software, and we’re looking for people who want to help shape what comes next. We’ve raised $160m+ from top investors including Insight Partners and Accel, and 60+ angels. We are proud to be recognized on CNBC World's Top Fintech Companies. THE ROLE As a Senior Backend Engineer, you'll be a key owner of the product and building the infrastructure behind it. You'll work closely with product managers, designers, and other engineers to shape features from idea to production, building the financial primitives that power businesses. This is a hands-on role for engineers who care deeply about what they build and why they build it. For the right candidate, it's a rare chance to leave a lasting mark on an industry-defining product. KEY RESPONSIBILITIES • Own features end-to-end: from product design and API contracts through implementation, testing, and deployment. • Collaborate directly with product and design to define requirements, push back when needed, and help make smart tradeoffs between speed, quality, and scope. • Build reliable, well-crafted backend services that power Unit's Banking, Payments, and Cards products. • Write APIs and backend logic that developers love to use: with a focus on clarity, correctness, and a great developer experience. • Contribute to architectural decisions and help raise the engineering bar across the team. WHAT WE'RE LOOKING FOR • 5+ years of backend development experience, ideally in a product-driven environment where you've owned features • A product mindset: you ask "why are we building this?" and you care about the customer experience, not just the technical implementation. • Comfort working across the full backend lifecycle: design, implementation, testing, deployment, and on-call ownership. • Experience building and maintaining reliable systems in cloud environments (AWS, GCP, or Azure). • Solid understanding of distributed systems concepts: consistency, availability, failure modes, and observability. • Experience with CI/CD and modern deployment practices. • Fintech, payments, or developer-platform experience is a strong plus. • Production experience with Kubernetes — advantage. • Experience with Scala, ZIO, Cats, or functional programming — advantage. • Familiarity with DDD, Event Sourcing, or CQRS — advantage. #LI-Hybrid LIFE AT UNIT Working at Unit means helping shape the future of financial technology. We’re a global team that thinks big, moves with purpose, and takes ownership of the work we do. We care deeply about building great products, solving hard problems, and helping our customers succeed. We value people who are curious, collaborative, and ready to make an impact. At Unit, you’ll have the opportunity to do meaningful work, learn alongside talented teammates, and help build what’s next.

We are seeking a Senior Backend Engineer to join the Sightline detection engineering team. You will design, build, and operate high-scale, low-latency backend services that score and protect web and API traffic against automated abuse, working at the core of HUMAN’s real-time detection platform. What you’ll do: • High-Scale Engineering: Design, build, and maintain distributed, high-throughput backend services processing hundreds of thousands of requests per second with strict tens-of-milliseconds latency targets. • End-to-End Ownership: Own services from architecture and implementation to deployment and reliability. This includes full-stack instrumentation (monitoring, alerting, and tracing) to detect and mitigate production issues. • Product Innovation: Implement and evolve real-time detection and decisioning flows within the Sightline Cyberfraud Defense platform, collaborating with security researchers, data science, and product teams. • Cloud-Native Operations: Build and operate services in a Kubernetes environment using a modern GitOps stack (Go, Kafka, Redis, MongoDB, BigQuery, ArgoCD, Pulumi, Crossplane), ensuring robust rollout strategies and safe migrations. • AI-Forward Engineering: Demonstrate a deep passion for the AI-first development frontier and an expert-level ability to leverage assistants and agents to radically accelerate the entire lifecycle - from architectural scaffolding to automated tasks, skills, and complex debugging/testing. • Cross-Functional Collaboration: Partner with adjacent teams to design end-to-end flows that balance security, performance, and customer experience. • Technical Leadership: Contribute to technical design reviews and code reviews, raising the bar for quality and operational excellence across the team. Who you are: • Experience: 5+ years of experience building backend services with a strong grasp of modern distributed systems design. • Language Proficiency: High proficiency in at least one backend language such as Go, Java, or Scala, including a strong command of concurrency and multithreading concepts. • Cloud Infrastructure: Proven experience building and operating production systems in a major cloud provider (GCP or similar), including containerized workloads and CI/CD pipelines. • Data Systems: Hands-on experience with datastores and messaging systems (e.g., MongoDB, Redis, Kafka, or Postgres). • Networking & APIs: Solid understanding of networking fundamentals, HTTP-based services, and best practices for secure, reliable APIs. • Troubleshooting: Practical experience with monitoring tools (e.g., Prometheus, Grafana, Opsgenie) and resolving complex, distributed production issues. • Delivery: Comfortable working both independently on complex technical problems and as part of a collaborative team, driving projects end-to-end. Nice to Have • Previous experience in security, fraud detection, or risk scoring systems, especially in high-volume web or API environments. • Deep, hands-on experience with Go in production, including performance tuning, profiling, and optimizing latency-sensitive services for cost and availability at scale. About HUMAN Security HUMAN was founded in a Brooklyn sci-fi bookstore with a hacker mindset and the lofty mission of making the internet safer by putting humans first. Today, our Human Defense Platform safeguards enterprises from sophisticated bots, fraud, and account abuse, verifying the humanity of more than 20 trillion interactions per week for the world’s biggest brands and internet platforms. HUMAN is an equal opportunity workplace dedicated to protecting the internet's integrity for everyone. We believe in putting people first, embracing diversity of thought from our global teams, and welcoming all individuals to share their unique experiences as we fight cybercrime together. We support our Humans with a comprehensive total rewards package for personal and professional development, including well-being and learning stipends, flexible work options, and dedicated time off. While our HQ is in NYC, we have teams worldwide. HUMAN is growing fast, and there’s never been a more meaningful time to join us. If you thrive on solving complex problems and want to help shape the future of cybersecurity, join us as we build a safer, more human internet. If you are an individual with a disability or special need that requires accommodation, please contact us directly.

Who are we? Sweep is the agentic layer for enterprise systems where teams and metadata agents plan, change, and govern systems with speed and confidence. What will you do at Sweep? As a Senior Back-End Developer at Sweep, you’ll play a critical role in shaping the foundation of our innovative platform. Working alongside a talented team in Tel Aviv, you will: • Design and develop core products and features that empower our users to achieve their goals. • Partner closely with product managers, front-end developers, and other stakeholders to deliver scalable and impactful solutions. • Participate in all stages of the product development lifecycle, from concept and design to deployment and maintenance. • Take initiative in solving complex technical challenges while contributing to the strategic direction of our technology stack. We are looking for • 7+ years of professional experience in software development. • Thrives in collaborative environments and takes pride in contributing to team success. • Approaches development with a product-first mindset, ensuring alignment with business goals and user needs. • Proficiency with our tech stack, including Node.js, Python, JavaScript (TypeScript), Docker, SQL, and AWS (or similar cloud platforms). • Hands-on experience with high-scale systems and production environments is a strong advantage. • A degree in Computer Science or similar (advantage). About Sweep: As a fast-growing, venture-backed startup, we are proud to be supported by top investors like Insight Partners and Bessemer Venture Partners. With teams in New York, Portugal, and Tel Aviv, we are a passionate, success-driven group that thrives on collaboration and innovation. Join us to be part of a dynamic, people-first community where we tackle complex challenges, take smart risks, and celebrate each other's successes. Learn more about our mission and culture on our About page https://www.sweep.io/about.