Job Title: Lead/Principal Embedded Software Engineer
Location: Gloucester (On-Site Working) 
Salary: Up to £80,000 (Depending on Experience) 

Summary of Vacancy: 

We’re currently recruiting for a Principal Embedded Software Engineer on behalf of a cutting-edge Security Research & Development organisation.

This 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.

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.

Key Responsibilities:

• Develop robust, efficient embedded software with a focus on security and performance.
• Work across the full stack—from low-level hardware interaction up to application logic—depending on project needs.
• Use your deep understanding of systems to write clean, reliable code that meets demanding security requirements.
• Lead small teams of engineers, supporting junior developers and reviewing complex codebases.
• Rapidly learn and adapt to new languages, platforms, and toolchains.
• Collaborate closely with researchers to explore new capabilities and turn ideas into working software.

• 10+ years’ experience in software engineering, with a strong focus on embedded systems and/or low-level development.
• Expertise in native languages such as C, C++ & Python
• Proven track record of delivering complex projects in production environments.
• Deep understanding of secure coding practices and system-level design.
• Familiarity with a range of hardware platforms and toolchains.
• Excellent communication skills—able to explain technical concepts to both engineers and stakeholders.

• This role requires UK security clearance.
• Discretionary Bonus 
• Enhanced Employer Pension Contributions 
• 26 Days Holiday + Bank Holidays