Irregular

About Irregular Irregular is the first frontier security lab with the mission of protecting the world in the time of increasingly capable and sophisticated AI systems. We build next-generation defenses through high-fidelity research platforms that simulate and monitor real-world AI security scenarios. As AI systems become more powerful, we focus on staying ahead of emerging threats and vulnerabilities, ensuring these transformative technologies can be deployed safely and securely. About the Role As a Technical Policy researcher at Irregular, you'll tackle some of the biggest and most complex questions of AI development and deployment. Your work outlining problems, solutions and principles for governments, frontier labs, and deployers will shape the emerging field of AI security. Representative projects: • Threat modeling and fleshing out in what specific way could a strong cyber-capable model cause harm. • Taxonomies for dangerous AI capabilities or mitigations. • Policy proposals for models' refusal policy (which prompts models should refuse to follow). • Following up on publications and news on AI policy, AI risks and mitigations, and technical AI research. • Writing academic papers and blog posts detailing our research around evaluation theory or mitigation recommendations. • Publishing your research and/or delivering research to our customers. You may be a good fit if you have • Strong research skills in both quantitative and qualitative methods. • Strong writing skills, and experience as an academic (or industry equivalent) writer or analyst. • Interest in AI and specifically AI security. • Technical proficiency. • Background in AI/cybersecurity - a big advantage

About Irregular Irregular is the first frontier security lab with the mission of protecting the world in the time of increasingly capable and sophisticated AI systems. We build next-generation defenses through high-fidelity research platforms that simulate and monitor real-world AI security scenarios. As AI systems become more powerful, we focus on staying ahead of emerging threats and vulnerabilities, ensuring these transformative technologies can be deployed safely and securely. About the Role As Irregular’s Senior DevOps Engineer, you will play a critical role in shaping our infrastructure, deployment pipelines, and operational foundations. This is a hands-on, high-ownership role with real influence over how the company builds, deploys, and operates its systems in production. You’ll be building infrastructure that supports work with frontier AI labs such as Google, Anthropic, and OpenAI, and meets the scale, security, and reliability standards this ecosystem requires. This includes architecting ephemeral, on-demand environments, and spinning up and tearing down multi-service deployments (VPCs, compute, serverless components, and more) as needed. You will work closely with research, engineering, security, and leadership to design and maintain scalable infrastructure, improve system reliability, and enable fast, safe, and secure product delivery. Key Responsibilities • Own and evolve Irregular’s cloud infrastructure, with a strong focus on scalability, security, and reliability • Design, build, and maintain end-to-end CI/CD pipelines and deployment workflows • Lead and continuously improve containerized environments (Docker, Kubernetes) • Build and maintain Infrastructure as Code and automation frameworks (e.g., Terraform) • Own production readiness: availability, monitoring, logging, alerting, and incident response • Work closely with engineering and research teams to support development, testing, and production needs • Drive improvements in system performance, reliability, and security posture • Take part in - and often lead architectural decisions and long-term infrastructure planning • Act as a key operational owner in a fast-growing startup, setting best practices and standards Requirements • 5+ years of hands-on experience as a DevOps / Infrastructure Engineer in production environments • Strong, hands-on experience with AWS (architecture, networking, security, and cost awareness) • Proven experience with containerization and orchestration (Docker, Kubernetes) in production • Hands-on experience designing and maintaining CI/CD pipelines (e.g., GitHub Actions or similar) • Strong experience with Infrastructure as Code and automation (e.g., Terraform) • Ability to take end-to-end ownership and operate independently in an early-stage, high-ambiguity environment Nice to Have • Experience working closely with research or security teams in production environments • Background supporting data-heavy, distributed, or high-scale systems • Familiarity with monitoring, observability, and alerting tools (e.g., Prometheus, Grafana, Datadog)

About Irregular IIrregular is the first frontier security lab with the mission of protecting the world in the time of increasingly capable and sophisticated AI systems. We build next-generation defenses through high-fidelity research platforms that simulate and monitor real-world AI security scenarios. As AI systems become more powerful, we focus on staying ahead of emerging threats and vulnerabilities, ensuring these transformative technologies can be deployed safely and securely. About the Role We’re looking for a highly organized, proactive, and discreet Personal Assistant to support Irregular’s CTO and Co-Founder across his personal and professional life. This is a hands-on role with a high degree of ownership and autonomy. Approximately 70% of the role focuses on personal matters, household and family coordination, travel, and day-to-day logistics. The remaining 30% involves calendar management and professional and administrative support. You’ll anticipate needs, manage competing priorities, and make sure things get done, from everyday errands to complex arrangements. The role requires sound judgment, absolute discretion, and flexibility to respond outside standard working hours when needed. Key Responsibilities Personal Support (~70%) • Manage personal matters and errands end-to-end, including appointments, transportation, special projects, and ad hoc requests. • Coordinate household operations, service providers, and vendors, ensuring reliable execution and follow-through. • Manage family logistics and children’s schedules, including school administration, after-school activities, and appointments. • Plan and coordinate personal and business travel, including flights, accommodation, transportation, visas, and detailed itineraries. Handle changes and unexpected issues as they arise. • Organize personal events and activities, taking ownership of planning, coordination, and execution. Professional Support (~30%) • Own the CTO’s work and personal calendars, anticipating scheduling conflicts, managing priorities, and protecting time for focused work. • Coordinate internal meetings across the company and external meetings with partners, clients, and other stakeholders. • Manage expense reports, invoices, and billing for personal and professional matters, working with the Operations team where relevant. Requirements • 2+ years of experience as a Personal Assistant, Executive Assistant, or in a similar role in a fast-paced environment, ideally supporting senior executives. • Exceptional organizational skills and attention to detail, with reliable follow-through across multiple tasks and deadlines. • Ability to take ownership, anticipate needs, and solve problems independently with minimal guidance. • Sound judgment and absolute discretion when handling sensitive personal, family, and business information. • Strong interpersonal and communication skills, with the ability to build trusted relationships with family members, colleagues, service providers, and vendors. • Ability to stay calm, adapt quickly, and prioritize effectively as plans and needs change. • Fluent Hebrew and English, both written and spoken. • Willingness to handle personal errands and household logistics hands-on, and availability outside standard working hours when required. Nice to Have • Experience using AI tools and productivity apps to streamline planning, coordination, and administrative work. • Experience working in a startup or technology company.

About Irregular Irregular is the first frontier security lab with the mission of protecting the world in the time of increasingly capable and sophisticated AI systems. We build next-generation defenses through high-fidelity research platforms that simulate and monitor real-world AI security scenarios. As AI systems become more powerful, we focus on staying ahead of emerging threats and vulnerabilities, ensuring these transformative technologies can be deployed safely and securely. About the Role As a research engineer at Irregular, you'll be at the forefront of building systems to evaluate and secure frontier AI models. You'll work on infrastructure and experiments to assess model capabilities, implement agent frameworks, and develop mitigations for advanced AI systems. Your role will involve creating robust evaluation pipelines, developing security-focused testing frameworks, and building tools that help understand and mitigate risks related to frontier models. You’ll have a chance to understand the research context and your code’s impact and contribute as a meaningful part of a growing team. Representative projects: • Building a tool to continuously evaluate models and mitigate their risks. From designing the APIs for frontier labs, to building analysis and visualization tools that summarize 10,000+ transcripts into specific conclusions. • Designing and building challenges that measure a model’s ability to evade discovery, allowing us to see if models can operate on remote systems while avoiding detection by common defensive security tools. • Developing controlled environment frameworks for more secure use of frontier models. • Designing and building agents that improve a model’s ability to complete complex tasks. Includes many potential avenues, such as incorporating SOTA prompting practices, creating tools for task delegation, and more. • Publishing your research and/or delivering research to our customers. You may be a good fit if you: • Have strong production programming skills and experience. • Have strong problem-solving and analytical skills. • Work well in a multidisciplinary team and can adapt to rapidly evolving challenges. • Are interested in AI and cybersecurity (experience in machine learning or cybersecurity is a plus but not necessary). • Care about the societal impacts of your work.

About Irregular Irregular is the first frontier security lab with the mission of protecting the world in the time of increasingly capable and sophisticated AI systems. We build next-generation defenses through high-fidelity research platforms that simulate and monitor real-world AI security scenarios. As AI systems become more powerful, we focus on staying ahead of emerging threats and vulnerabilities, ensuring these transformative technologies can be deployed safely and securely. About the Role As a cyber researcher at Irregular, you will be at the forefront of research on AI security. You will engage with questions such as how to protect the weights of an advanced model against cyber threats, and how to evaluate cyber capabilities such as AI’s ability to exploit vulnerabilities, carry out network attacks, and develop malware. This role sits at a unique intersection of cybersecurity expertise and AI capabilities, where your background in vulnerability and security research will help shape the future of AI security. Representative projects: • Expanding the quantity, quality, and variety of our cyber capabilities evaluation challenges (e.g. constructing original CTF-style vulnerability & exploitation challenges, network attack simulation challenges, and more, including original types of challenges). • Leading research into methods to mitigate cybersecurity risks related to the misuse of AI, the theft of model weights, or risks associated with integrating models with dangerous capabilities in AI agents. • Publishing your research and/or delivering research to our customers. • Advising and supporting the development of the products we’re building. Representative research questions about AI frontier models: • Can an AI find and exploit 0-days? • What’s the best way to measure a CTF challenge's difficulty level vs. an AI player's skill level? • Can an AI elevate an average computer science student’s cyber capabilities to that of a nation-state? You may be a good fit if you: • Have a strong background in vulnerability/security research & development such as having found vulnerabilities/CVEs, analyzed malware, researched detection methods for attacks, developed pentesting products or other attack tools, participated in CTF competitions or authored CTF challenges, or participated in other types of security research & development. • Work well in a multidisciplinary team and can adapt to rapidly evolving challenges. • Care about the societal impacts of your work.

About Irregular Irregular is the first frontier security lab with the mission of protecting the world in the time of increasingly capable and sophisticated AI systems. We build next-generation defenses through high-fidelity research platforms that simulate and monitor real-world AI security scenarios. As AI systems become more powerful, we focus on staying ahead of emerging threats and vulnerabilities, ensuring these transformative technologies can be deployed safely and securely. About the Role As an AI researcher at Irregular, you'll be at the forefront of researching advanced frontier model capabilities and agent behavior, and help shape the future of AI security evaluation and mitigation. In this role, you will advance the frontier knowledge of AI and agentic frameworks, methods of assessing their ability, and mitigations for dangerous capabilities. Representative projects: • Researching capability elicitation methods to enhance model performance in evaluations. • Researching methodologies to assess generalization and coverage in model capabilities evaluation frameworks. • Contributing to academic publications and delivering research findings to customers. • Creating unique solutions to mitigate scenarios of AI loss of control or misalignment. • Advising and supporting the development of the products we’re building. You may be a good fit if you: • Have a strong research experience in machine learning, particularly with frontier AI models. • Can design and implement novel research approaches for emerging AI challenges. • Work well in a multidisciplinary team and can adapt to rapidly evolving research questions. • Have a track record of publishing peer-reviewed research in top-tier venues (e.g., AAAI, ACL, EMNLP, ICLR, ICML, Nature, NeurIPS, Science, or similar). • Care about the societal impacts of your work.

We’re always excited to meet people who excel at what they do, care deeply about AI Security, and want to solve problems that are both challenging and important. If you thrive in ambiguity, bring unique skills or perspectives, and are eager to contribute to our mission, we’d love to hear from you - even if there’s no “perfect” role listed yet. Tell us what you bring. We’ll explore how to build with you.

About Irregular Irregular is the first frontier security lab with the mission of protecting the world in the time of increasingly capable and sophisticated AI systems. We build next-generation defenses through high-fidelity research platforms that simulate and monitor real-world AI security scenarios. As AI systems become more powerful, we focus on staying ahead of emerging threats and vulnerabilities, ensuring these transformative technologies can be deployed safely and securely. About the Role As a Software Engineer at Irregular, you will take ownership of designing, building, and scaling the production systems that power our evaluation and security platform for frontier AI models. Your work will focus on creating robust, resilient, and high-performance infrastructure—whether that’s distributed pipelines, backend services, or tooling that supports our research teams. This role is engineering-first with a strong research and cyber component. You will develop systems that must run reliably in production, integrate with external partners, and support large-scale data, experiments, and automated evaluations. You’ll drive architectural decisions, lead technical implementations, and shape how our platform evolves. Representative Responsibilities: • Architecting and scaling production-grade systems and workflows. • Building backend services, APIs, and monitoring tools for large-scale model evaluations. • Designing infrastructure that supports research experiments at scale. • Implementing agent frameworks in production environments • Designing and building challenges that measure a model’s ability to evade discovery, allowing us to see if models can operate on remote systems while avoiding detection by common defensive security tools. You may be a good fit if you: • Have strong software engineering fundamentals and multiple years of production experience. • Have experience working in multidisciplinary teams, and can adapt to rapidly evolving challenges. • Enjoy working at the intersection of engineering and applied research. • Are interested in AI and cybersecurity (experience in machine learning or cybersecurity is a plus but not necessary). • Care about the societal impacts of your work.

About Irregular Irregular is the first frontier security lab with the mission of protecting the world in the time of increasingly capable and sophisticated AI systems. We build next-generation defenses through high-fidelity research platforms that simulate and monitor real-world AI security scenarios. As AI systems become more powerful, we focus on staying ahead of emerging threats and vulnerabilities, ensuring these transformative technologies can be deployed safely and securely. About the Role As a Senior FullStack Engineer, you’ll join our engineering team and help build the next generation of Irregular’s products as they evolve into intuitive, polished, and powerful experiences for some of the most sophisticated AI organizations in the world. This is a highly impactful role for an engineer with strong frontend expertise who cares deeply about product quality and user experience, and can both build scalable systems and help lead the technical direction of the frontend. You’ll work closely with exceptional engineers, researchers, and founders to turn deeply technical capabilities into user-facing products that are clear, elegant, and highly effective. Representative Responsibilities: • Build and own full-stack product features end-to-end • Help shape the next generation of the company’s products • Lead the technical direction of the frontend architecture, development standards, and engineering culture • Build polished, high-quality user experiences for highly technical users • Collaborate closely with engineers, founders, and product stakeholders on product and technical decisions • Take ownership of projects from idea to production with high autonomy and impact What we're looking for: • Strong full-stack engineering experience with deep frontend capabilities • Hands-on frontend experience with React/Angular/TypeScript and modern frontend frameworks • Backend development experience with scalable production systems • Ability to work independently and lead projects from idea to production • Strong product intuition and passion for building exceptional user experiences • Comfort working closely with designers and building polished, pixel-perfect UIs across devices and screen sizes • Commitment to code quality, maintainability, and testing as part of the development process

About Irregular Irregular is the first frontier security lab with the mission of protecting the world in the time of increasingly capable and sophisticated AI systems. We build next-generation defenses through high-fidelity research platforms that simulate and monitor real-world AI security scenarios. As AI systems become more powerful, we focus on staying ahead of emerging threats and vulnerabilities, ensuring these transformative technologies can be deployed safely and securely. About the Role We’re looking for a Senior SecOps Engineer to own and evolve the security infrastructure, tooling, and controls that protect Irregular’s engineering environment. This is a hands-on security engineering role focused on building, implementing, and operating the systems that enable our engineering teams to work securely at scale. You’ll work closely with our Infrastructure Engineers and the broader Engineering team to embed security into our infrastructure and development environment without slowing teams down. You’ll take ownership of security tooling and posture management across our environment — from evaluating and deploying new security technologies to continuously improving how we identify, prioritize, and remediate security risks. We’re looking for someone with a strong background in Security Operations, Infrastructure Security, or Security Engineering who has operated and secured modern engineering environments. Representative Responsibilities • Own, operate, and continuously improve Irregular’s security infrastructure, tooling, and controls across cloud infrastructure, engineering systems, identity, and endpoints. • Evaluate, implement, and integrate security technologies across our engineering environment. • Own security posture and vulnerability management, including identifying, prioritizing, tracking, and driving remediation of security risks. • Partner closely with Infrastructure and Engineering teams to identify security gaps and implement practical, scalable solutions. • Integrate security tooling into engineering workflows, including vulnerability and dependency scanning tools • Build and improve security monitoring, detection, alerting, and incident response capabilities. • Automate security operations and controls to improve coverage, consistency, and efficiency. You may be a good fit if you have • Significant hands-on experience in Security Operations, Infrastructure Security, or Security Engineering. • Experience owning security infrastructure and tooling in a modern, cloud-based AWS environment. • Strong understanding of cloud and infrastructure security, identity and access management, endpoint security, vulnerability management, and security monitoring. • Hands-on experience evaluating, deploying, integrating, and operating security tools and security posture management platforms. • Experience implementing security controls in close collaboration with Infrastructure and Engineering teams. • The ability to independently identify security gaps, design solutions, and drive implementation end-to-end. • Strong ownership mentality and the ability to operate effectively in a fast-moving, high-ambiguity environment. Nice to Have • Hands-on experience with, • penetration testing, security research or offensive security. • cloud security posture management (CSPM) and related security platforms. • application Security and secure software development best practices. • building security automation or internal security tooling. • Experience translating offensive security knowledge into detection engineering, incident response, threat hunting, and security monitoring improvements. • Hands-on security training or certifications demonstrating strong practical offensive and defensive security skills, such as OSCP, OSCE, or equivalent.

About Irregular Irregular is the first frontier security lab with the mission of protecting the world in the time of increasingly capable and sophisticated AI systems. We build next-generation defenses through high-fidelity research platforms that simulate and monitor real-world AI security scenarios. As AI systems become more powerful, we focus on staying ahead of emerging threats and vulnerabilities, ensuring these transformative technologies can be deployed safely and securely. About the role Our Operations team works across the business, supporting everything from commercial and marketing initiatives to finance, internal systems and employee experience. Reporting to the Head of Operations, you’ll take ownership of projects, build processes where they’re needed, and help teams get things done. This is a hands-on role for someone who enjoys variety, learns quickly and can turn an unfamiliar challenge into a clear plan and a completed project. What you’ll do • Lead projects across the company: Own operational initiatives from defining the need through execution, coordinating stakeholders, budgets and timelines. • Support business and commercial operations: Partner with business teams, Legal and Finance to coordinate customer onboarding, procurement requirements and other commercial processes. • Support marketing operations: Coordinate the execution of events, conferences, campaigns and launches, including agencies, vendors, materials, budgets and logistics. • Build processes and systems: Identify gaps, improve workflows and implement tools and automation that help teams work more effectively. • Manage vendors and purchasing: Own sourcing, negotiations, onboarding, renewals and ongoing service management across company needs. • Support financial operations: Manage purchasing and invoice workflows, track spending against budgets, and identify opportunities to improve efficiency and reduce costs. • Coordinate company infrastructure: Work with IT and security providers on equipment, access, service delivery and operational projects. • Support people and workplace operations: Partner with HR on onboarding, offboarding and employee initiatives, and help manage office needs as the company grows. • Take on emerging priorities: Research options, recommend solutions and independently drive new initiatives as business needs evolve. What you’ll bring • 4+ years of experience in operations, business operations or a similarly broad role, including hands-on experience at a startup - a must. • A track record of delivering projects involving multiple teams and managing several priorities simultaneously. • Experience building or improving processes, rather than only following established ones. • Strong organizational skills, attention to detail and reliable follow-through. • Good business judgment, confidence working independently and the ability to recognize when to escalate. • Comfort with budgets, spreadsheets and operational data. • Experience managing vendors and working with internal stakeholders and external partners. • Confidence in learning new systems and using AI and automation tools in your work. • Excellent Hebrew and English, written and spoken. • A practical, collaborative approach and equal willingness to lead a project or handle the details needed to complete it. An advantage: Experience supporting marketing or commercial operations, familiarity with CRM and project management tools, or experience in AI or cybersecurity.