Salary: £70,000 - 74,000 per year 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 Embedded software or firmware experience is a bonus, not a must Degree (or equivalent experience) in a STEM discipline Responsibilities: 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 Technologies: Embedded Firmware Security Support Network More: We are a leading company in defence technology, focused on securing advanced software-enabled systems. As a Software Security Engineer, you will be at the center of our defence-focused product portfolio, influencing software engineering decisions throughout the product lifecycle. We offer a competitive base salary of up to £74,000 with a bonus of up to 21%, comprehensive pension contributions, hybrid working options, and enhanced parental leave among other benefits. Our team is dedicated to making a significant impact in the field and we are looking for individuals who share our passion for security in software development. last updated 10 week of 2026