Security Researcher jobs in Nazareth

Overview Join the elite Microsoft Defender Research team, where we turn deep security research into autonomous protection that detects, investigates, and disrupts sophisticated attacks in near real-time across endpoints, identities, cloud applications, and cloud infrastructure. Leveraging Microsoft’s global reach and one of the world’s largest security telemetry sets, you will have a direct, tangible impact on protecting organizations and the global economy. This is an opportunity for researchers who are passionate about transforming security operations and shaping how defenders investigate and stop attacks at scale. We are looking for a Principal Security Researcher to lead research for key agents within Project Perception, part of Microsoft’s broader agentic security evolution. You will lead research for this area end to end, from framing high-impact investigation problems and bringing domain expertise into agents design and evaluation, to partnering with data science, engineering, product, and other teams to move these capabilities into production and customer-facing experiences. Our team values diversity and strives to hire individuals with varied experiences and perspectives. We understand that no candidate possesses every desired skill and experience, but together, we form a strong, effective team. Responsibilities • Lead security research for agents within Project Perception, from defining high-impact problems and research methodology through agent design, rigorous evaluation, production readiness, and customer-facing experiences. • Set the research strategy and align partner teams across the organization. Translate research priorities into clear requirements and experiments, use evidence to influence roadmap decisions, and communicate strategy, findings, and recommendations to senior stakeholders. • Drive research outcomes into production and customer-facing experiences. Partner with engineering, data science, and product teams to define success criteria, validate quality and safety, establish production readiness, measure customer impact, and iterate based on real-world performance. • Analyze large-scale data and conduct investigations to improve the quality and effectiveness of Project Perception agents, building on and contributing to Microsoft Defender’s protection knowledge layer. • Apply and champion AI in security research, using current models, agentic architectures, coding agents, and tooling to accelerate triage, investigation, and detection and increase researcher productivity. Validate AI outputs and develop reusable workflows. • Mentor and grow researchers, elevating the team’s technical bar. Qualifications • You have at least 10+ years of experience in security research or a closely related cybersecurity research role. • Strong, evidence-backed adoption of AI in technical work. Regularly use and develop AI skills, coding agents, agentic tools, or AI-assisted workflows, while evaluating and validating outputs. • Deep expertise in security research and modern attacker tradecraft, with the ability to conduct complex investigations and translate security knowledge into reliable agent and protection outcomes. • Experience leading technical work from research and design through production delivery, partnering with engineering and product teams, and influencing roadmaps and senior stakeholders across organizational boundaries. • Proficiency in programming, such as Python or C#, and large-scale query languages, such as KQL or SQL, with experience analyzing security data and developing or validating research and protection capabilities. • Demonstrated technical leadership through mentoring researchers, raising the quality bar, and communicating complex findings clearly. Preferred Qualifications • Bachelor’s, master’s, or doctoral degree in Computer Science, Computer Security, Software Engineering, or a related field; equivalent practical experience is also valued. Other Requirements • Ability to meet Microsoft, customer and/or government security screening requirements are required for this role. These requirements include, but are not limited to the following specialized security screenings: Microsoft Cloud Background Check: This position will be required to pass the Microsoft background and Microsoft Cloud background check upon hire/transfer and every two years thereafter. #MSFTSecurity This position will be open for a minimum of 5 days, with applications accepted on an ongoing basis until the position is filled. Microsoft is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to age, ancestry, citizenship, color, family or medical care leave, gender identity or expression, genetic information, immigration status, marital status, medical condition, national origin, physical or mental disability, political affiliation, protected veteran or military status, race, ethnicity, religion, sex (including pregnancy), sexual orientation, or any other characteristic protected by applicable local laws, regulations and ordinances. If you need assistance with religious accommodations and/or a reasonable accommodation due to a disability during the application process, read more about requesting accommodations.

Overview Join one of the elite research teams powering Microsoft Defender, the dominant market leader in XDR, SIEM, Cloud, and AI Security. We protect the world’s largest enterprises by analyzing trillions of signals to protect against sophisticated cyberattacks across hybrid and multi-cloud environments. We are currently hiring for multiple Security Research positions across our Microsoft Defender Research teams in Israel. By applying to this unified pipeline, you will be considered for a high-impact role (at either the Security Researcher II or Senior Security Researcher role) within one of our specialized groups, including Autonomous Attack Disruption, Cloud Workload Protection, Identity Research, Posture Research, or Security for AI. We are looking for passionate, highly skilled security researchers who thrive on the challenge of breaking complex attacker kill-chains. Leveraging Microsoft’s dominant market position and the world’s most massive telemetry set, you will have a direct, tangible impact on the security of the global economy. We are looking for researchers who want to see their findings transformed into production-ready protection, where the ultimate goal is not just to detect threats, but to prevent and stop them in near real-time. Our team values diversity and strives to hire individuals with varied experiences and perspectives. We understand that no candidate possesses every desired skill and experience, but together, we form a strong, effective team. Responsibilities • Investigate real world advanced attacker TTPs to develop high-fidelity protection signals, and robust logic across complex kill-chains. • Design and implement innovative capabilities that autonomously prevent, detect and disrupt sophisticated threats in near real-time. • Infuse deep security expertise into the analysis of massive telemetry sets using big-data query languages, reasoning over data to identify novel malicious patterns, and drive evidence-based research decisions. • Partner with engineering and product teams to share research insights, validate protection concepts, and push ideas forward into production-ready protection at a global scale. • Contribute expert insights to a strategic feedback loop by analyzing real-world attack data and telemetry to refine protection coverage and accuracy. Qualifications • 4+ years of hands-on experience in security research or threat hunting, with a specialized focus on identity, cloud, or AI-based threat scenarios. • Deep understanding of the threat landscape, including modern attacker techniques and complex kill-chains, with a focus on platform internals across OS, Cloud Workloads and Identity platforms. • Experience hunting across diverse signal sources, effectively uncovering threats within on-premises, hybrid, and cloud environments. • Programming proficiency (e.g., Python, C#, or similar), with a proven ability to develop and ship production-ready protection logic.Demonstrated ability to work effectively in cross-functional teams, bridging the gap between deep research and scalable engineering. Preferred Qualifications • B.Sc. or M.Sc. in Computer Science or Software Engineering OR/AND related field • Public track record of security research, such as technical blog posts, whitepapers, or presentations at major industry conferences. • Experience in offensive security or adversary simulation. • Deep understanding of AI-driven threats. • Proven ability to reason over large-scale datasets using big-data query languages, applying security expertise to identify novel patterns and make evidence-based decisions. • Familiarity with cloud environments (e.g., Azure, AWS) and the specific security challenges inherent to hybrid and multi-cloud infrastructures in large enterprise customers. By applying to this position, you are being considered for multiple like positions within our organization for an invitation-only virtual Interview Day. Position specifics, including hiring team, location, and position details will be determined following the interview process. This position will be open for a minimum of 5 days, with applications accepted on an ongoing basis until the position is filled. Microsoft is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to age, ancestry, citizenship, color, family or medical care leave, gender identity or expression, genetic information, immigration status, marital status, medical condition, national origin, physical or mental disability, political affiliation, protected veteran or military status, race, ethnicity, religion, sex (including pregnancy), sexual orientation, or any other characteristic protected by applicable local laws, regulations and ordinances. If you need assistance with religious accommodations and/or a reasonable accommodation due to a disability during the application process, read more about requesting accommodations.