Senior Cyber Software Engineer

Senior Operational Cyber Software Engineer

• Location: Gloucester, Manchester or London (5 days onsite)
• Salary: £60,000 - £83,000 + Bonus + Excellent Benefits
• Security Clearance: Must be eligible to obtain DV Security Clearance (existing clearance not required to apply)

The Opportunity

Join one of the UK's leading cyber and national security organisations, delivering secure software solutions that protect critical systems and support highly sensitive government programmes.

This is an opportunity for experienced software engineers who enjoy remaining hands-on while taking ownership of technical delivery, mentoring engineers and solving complex cyber challenges.

You'll work on projects where secure engineering is fundamental, helping build resilient systems designed to withstand real-world cyber threats.

The Role

As a Senior Operational Cyber Software Engineer, you'll combine hands-on software engineering with technical leadership, guiding small project teams while remaining actively involved in design, development and secure delivery.

Responsibilities

• Design, develop and deliver secure, high-assurance software solutions.
• Lead technical delivery across projects while mentoring and supporting 2-3 engineers.
• Embed secure development practices throughout the software lifecycle.
• Identify security risks and implement appropriate mitigations.
• Contribute to architecture, code reviews and engineering best practice.
• Collaborate with multidisciplinary teams to solve complex technical challenges.
• Support the delivery of software resilient to evolving cyber threats.

What We're Looking For

You'll ideally have experience in the following

• Strong commercial software engineering experience at Senior Engineer or Technical Lead level.
• Excellent programming skills in C++, Java or C#, with experience in at least one scripting language such as Python, JavaScript or PowerShell.
• Experience with modern software engineering practices including version control, automated testing and CI/CD.
• A solid understanding of cyber security principles and secure software development.
• Experience developing software in environments where resilience against cyber threats or security incidents is a key consideration.
• Ability to assess cyber risks and build secure, robust solutions.
• Previous experience mentoring engineers or providing technical leadership on projects.
• Strong communication and stakeholder engagement skills.

Candidates from Defence, National Security, Financial Services or other highly regulated industries are encouraged to apply.

What's on Offer?

• £60,000 - £83,000 salary
• Annual £7,000 tax-free DV bonus and comprehensive benefits package
• Structured career progression and technical development
• Dedicated training budget and ongoing learning opportunities
• Work on highly classified, mission-critical programmes supporting UK National Security

Please note: This role requires 5 days per week onsite and successful candidates must be eligible to obtain Developed Vetting (DV) Security Clearance. Existing DV clearance is not essential, and candidates can start employment while the clearance process is underway (subject to project requirements).