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Software Security Engineer

Job in Bristol, Bristol County, BS1, England, UK
Listing for: Fynity
Full Time position
Listed on 2026-02-13
Job specializations:
  • IT/Tech
    Cybersecurity, Systems Engineer, Network Security, Security Manager
Salary/Wage Range or Industry Benchmark: 74000 GBP Yearly GBP 74000.00 YEAR
Job Description & How to Apply Below
Software Security Engineer
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?

The Software Security Engineer sits right at the heart of a defence-focused product portfolio. You’ll act as the Software security engineer, 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 Software engineering decisions across the full product lifecycle from early concept through to in-service support.

As the Software Security Engineer 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
Thsi Software Security Engineer role can offer you.
Base salary of up to £74,000 with a Bonus upto 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
Must willing and able to go through Security Clearance and willing to progress to DV

If you’re a security-minded Software 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
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