Job Title: Principal Engineer - Cyber Security Location: Frimley, Bristol, Weymouth, Portsmouth, Coventry. Hybrid and flexible working arrangements. Salary: Up to £61,500 depending on skills and experience. hackajob is collaborating with BAE Critical Skills to connect them with exceptional tech professionals for this role. What You’ll Be Doing

Define and implement risk-based cybersecurity requirements for systems and subsystems, providing technical expertise and guidance across all aspects of cyber security and resilience. Conduct in-depth cybersecurity analysis, including development of threat taxonomies, security architectures, security baselines, and risk mitigation strategies. Develop and execute cybersecurity test plans and schedules, carrying out both informal and formal security testing activities. Support engineering lifecycle reviews and design assurance processes to ensure security is embedded throughout system development. Produce and maintain key security artefacts, including risk registers, security assurance cases, plans, and schedules, while contributing security input to broader engineering documentation.

Essential Skills and Experience

Degree in a relevant STEM subject or maintaining recognised Industry Security Qualifications e.g., CCP, CISSP. Proven experience of assessing and managing risk in line with industry good practice (NIST, ISO 27001). Significant experience with using security baselines, mitigations and controls. Considerable familiarity with a lifecycle phased approach.

Desirable Skills

Experience in Product Security activities in a highly regulated environment. Operational Technologies / Industrial Control Systems experience.

Benefits Competitive pension scheme, employee share plans, flexible discounted health, wellbeing and lifestyle benefits, green car scheme, private health plans, shopping discounts, annual incentive. The Engineering Delivery Team The team designs, builds, integrates and provides through life support to all the Submarine Platforms in the Royal Naval fleet. You will ensure the submarine systems and products are developed to support the delivery of an appropriately secure and resilient product. Through application of your knowledge and experience, you shall identify, analyse, evaluate and manage information security risks associated with the products used onboard the submarine. Speaking confidently and credibly with customers, users and internal stakeholders, you shall provide advice on the causes of the risks identified, their likelihood and potential operational impacts. We offer relocation support packages across all Submarines roles, subject to meeting eligibility criteria. Why BAE Systems? This is a place where you’ll be able to make a real difference. You’ll be part of an inclusive culture that values diversity of thought, rewards integrity, merit and where you’ll be empowered to fulfil your potential. We welcome people from all backgrounds and want to make sure that our recruitment processes are as inclusive as possible. If you have a disability or health condition that may affect your performance in certain assessment types, please speak to your recruiter about reasonable adjustments. Security and Export Control Many roles at BAE Systems are subject to security and export control restrictions. Nationality, place of birth, previous nationalities can restrict eligibility. All applicants must at a minimum achieve Baseline Personnel Security Standard. Some roles require higher levels of National Security Vetting with typically 5–10 years of continuous UK residency depending on vetting level. Closing Date 29th October 2025. We reserve the right to close this vacancy early if we receive sufficient applications. #J-18808-Ljbffr