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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Security Engineer - **Company:** Microsoft - **Location:** Cambridge, UK - **Experience:** Expert - **Salary:** £74,700.0 - £122,600.0 - **Contract:** Permanent contract - **Skills:** Microsoft Windows, Software System Penetration Testing, Microsoft Azure, Microsoft Online Services, C++ (Programming Language), Code Review, Fuzz Testing, Intrusion Detection and Prevention, Reverse Engineering, Software Engineering, Operating System Security, Vulnerability Analysis - **Published:** August 21, 2026 - **Apply:** https://jobs.theguardian.com/job/10178254/senior-security-engineer/ ## About the Role * Significant experience in security-related elements of software engineering or in another security-related field. * Hands on experience with systems level programming languages such as C, C++, or Rust. 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 Cloud Background Check upon hire/transfer and every two years thereafter., * Public or internal track record of relevant security research * Understanding of operating system security fundamentals, including kernel or low level platform components * Experience performing vulnerability research, including code review, fuzzing, reverse engineering, or exploit development * Experience developing or applying mitigations, such as memory safety protections, sandboxing, or platform hardening techniques Penetration Testing IC4 - The typical base pay range for this role across United Kingdom is £ 74,700.00 - £ 122,600.00 per year. Certain roles may be eligible for benefits and other compensation. ## Description In this role, you will work across the discovery and mitigation of security vulnerabilities - identifying weaknesses in systems, understanding their impact, and helping drive protections that improve the security of Microsoft platforms at scale. You will partner with engineers across Windows, Azure, and platform infrastructure to deliver security improvements and influence the way systems are designed and built. This role is well suited to engineers who enjoy deep systems work, solving complex problems, and delivering high impact security outcomes. Microsoft's mission is to empower every person and every organization on the planet to achieve more. As employees we come together with a growth mindset, innovate to empower others and collaborate to realize our shared goals. Each day we build on our values of respect, integrity, and accountability to create a culture of inclusion where everyone can thrive at work and beyond Responsibilities * Drive identification and analysis of security vulnerabilities across operating system and platform components, including design review, code review, fuzzing, and variant analysis * Develop and influence mitigations and protections that reduce risk across platforms, improving resilience against entire classes of vulnerabilities * Collaborate with engineering teams to integrate security into the development lifecycle, influencing design decisions and improving secure engineering practices * Contribute to the development and scaling of security tooling, detection capabilities, or analysis techniques that enable broader coverage and earlier detection of vulnerabilities * Partner across organisations to translate security findings into systemic improvements and measurable security outcomes * Stay current on attacker techniques, emerging vulnerability classes, and industry trends, applying this knowledge to improve Microsoft's security posture * Provide technical leadership within and across teams, contributing to direction setting, problem decomposition, and delivery of complex security initiatives ## Related Videos - [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers) - [Developer Tools for Microsoft Azure](https://www.wearedevelopers.com/videos/450-developer-tools-for-microsoft-azure) - [How will artificial intelligence change the future of software testing?](https://www.wearedevelopers.com/videos/85-how-will-artificial-intelligence-change-the-future-of-software-testing) - [Are Code Reviews Worth It? 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