Security SME

Security SME Defence Software Products

Would you like to work at the sharp end of defence technology, helping secure some of the most advanced software-enabled systems in the world?

This role sits right at the heart of a defence-focused product portfolio. You’ll act as the security subject matter expert, working across multiple programmes at once, shaping how security is designed, built and assured across a wide range of Software including embedded and non-embedded software.

You will be influencing real engineering decisions across the full product lifecycle from early concept through to in-service support.

 

As the Software Security expert you will:

• Acting as the security authority across a range of defence products
• Guiding security decisions throughout the entire software lifecycle
• Providing hands-on security expertise to software and wider engineering teams
• Advising on secure architectures, design patterns, coding standards and trade-offs
• Supporting both embedded software / firmware and more traditional software stacks
• Running security assessments and risk analysis, identifying threats and defining mitigations
• Supporting multiple projects in parallel in a fast-moving, classified environment
• Producing clear, usable security documentation, reports and metrics

To secure this Software Security engineer role you will have:

• Experience working on complex software products in defence, aerospace, automotive, telecoms or similar regulated sectors
• Strong background in software security, with knowledge of recognised security standards and best practice
• Able to balance security risk with real-world engineering delivery
• Interest in emerging technologies and the evolving security threat landscape
• Embedded software or firmware experience is a bonus, not a must
• Degree (or equivalent experience) in a STEM discipline

 
Package & working pattern
Salary: Circa £74,000

• Bonus: Up to 21%
• Pension: Up to 14% total contribution
• Hybrid working: Typically 3–5 days onsite (driven by workload classification)
• Flexible working supported
• Enhanced parental leave
• Excellent on-site facilities (subsidised meals, parking, etc.)

 
Security clearance

• British Citizen or Dual UK national with British citizenship
• Must be eligible for SC clearance and willing to progress to DV
• BPSS required as a minimum

 
If you’re a security-minded engineer who wants real influence over how defence software is built and protected, this is a genuinely interesting role.

If you are interested please apply ASAP. The People Network is an employment agency and will respond to all applicants within three - five working days. If you do not hear within these timescales please feel free to get in touch.