Software Engineer jobs in United Kingdom
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Security Engineer (Software)
Job summary
A leading defence technology company based in the UK is seeking a Software Security Engineer to oversee security across multiple defence products. This role involves guiding security decisions, providing hands-on expertise, and producing security documentation. Candidates should have a strong background in software security and experience in regulated sectors. The position offers a competitive salary and benefits including hybrid working, pension contributions, and parental leave.
Benefits
Qualifications
- 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.
- Ability to balance security risk with real‑world engineering delivery.
Responsibilities
- Act as the security authority across a range of defence products.
- Guide security decisions throughout the entire software lifecycle.
- Provide hands‑on security expertise to software and wider engineering teams.
Skills
Education
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.
- Act as the security authority across a range of defence products
- Guide security decisions throughout the entire software lifecycle
- Provide hands‑on security expertise to software and wider engineering teams
- Advise on secure architectures, design patterns, coding standards and trade‑offs
- Support both embedded software / firmware and more traditional software stacks
- Run security assessments and risk analysis, identify threats and define mitigations
- Support multiple projects in parallel in a fast‑moving, classified environment
- Produce clear, usable security documentation, reports and metrics
- 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
- Ability 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
Base salary of up to £74,000 with a 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.)
Must be 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 salary benchmark is based on the target salaries of market leaders in their relevant sectors. It is intended to serve as a guide to help Premium Members assess open positions and to help in salary negotiations. The salary benchmark is not provided directly by the company, which could be significantly higher or lower.