Job Title: Lead/Principal Embedded Software Engineer\nLocation: Gloucester (On-Site Working) \nSalary: Up to £85,000 (Depending on Experience) \n\nSummary of Vacancy: \n\nWe’re currently recruiting for a Principal Embedded Software Engineer on behalf of a cutting-edge Security Research & Development organisation.\n\nThis organisation is focused on low-level, security-related development in embedded systems, and is building novel and secure solutions that push technical boundaries. You’ll be working in a deeply technical, collaborative environment that prioritises engineering excellence.\n\n As a Principal Engineer, you’ll lead development efforts for secure embedded systems, working hands-on with code while also guiding and mentoring others. You’ll collaborate with researchers to prototype new capabilities and deliver high-integrity software across a wide range of platforms.\n \nKey Responsibilities: \nDevelop robust, efficient embedded software with a focus on security and performance.

\nWork across the full stack—from low-level hardware interaction up to application logic—depending on project needs. \nUse your deep understanding of systems to write clean, reliable code that meets demanding security requirements. \nLead small teams of engineers, supporting junior developers and reviewing complex codebases.

\nRapidly learn and adapt to new languages, platforms, and toolchains. \nCollaborate closely with researchers to explore new capabilities and turn ideas into working software. Required Experience: \n \n8+ years’ experience in software engineering, with a strong focus on embedded systems and/or low-level development.

\nExpertise in native languages such as C, C++ & Python \nProven track record of delivering complex projects in production environments. \nDeep understanding of secure coding practices and system-level design. \nFamiliarity with a range of hardware platforms and toolchains.

\nExcellent communication skills—able to explain technical concepts to both engineers and stakeholders. Additional Information & Benefits: \n \nThis role requires UK security clearance. \nDiscretionary Bonus  \nEnhanced Employer Pension Contributions  \n26 Days Holiday + Bank Holidays