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Software Security Engineer

Fynity

Location:
United Kingdom , Bristol

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

70000.00 - 74000.00 GBP / Year

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Job Description:

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.

Job Responsibility:

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

Requirements:

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
Degree (or equivalent experience) in a STEM discipline

Nice to have:

Embedded software or firmware experience

What we offer:

Bonus upto 21%
Pension: Up to 14% total contribution
Flexible working supported
Enhanced parental leave
Excellent on-site facilities (subsidised meals, parking, etc.)

Additional Information:

Job Posted:
February 17, 2026

Employment Type:

Fulltime

Work Type:

Hybrid work

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