Principal Systems Engineer – C&I in London

Location: Barrow (Hybrid)

Salary: Competitive (Commensurate with skills and experience)

What You'll Be Doing

• Generate systems models such as functional, logical and interface models for 12+ major C&I systems including Distributed Control Systems, Control Console and Vehicle Control Systems.
• Work closely with the system owners providing dynamic challenge on the systems design, to drive simplification within the design.
• Support the wider C&I design for several C&I sub-systems for Secondary Propulsion, Platform Mechanical and Platform Electrical.
• Manage various systems modelling/engineering stakeholders to provide consistency across the Centralised C&I team.
• Support the development of a functional design for the systems within scope for Centralised C&I.
• Deliver the response to the engineering delivery plan, ensuring that the plan is delivered to schedule.

Essentials

• Degree qualified.
• C&I domain working experience.
• Demonstrable experience in working with multi-discipline teams.
• Experience of requirements management for similar regulated industries such as defence, Oil and Gas, and Nuclear.

Desirable

• Proven use of Systems Engineering toolsets such as CAMEO, Enterprise Architect and DOORs.
• Comparable experience in C&I design across the lifecycle, specifically early-stage design.
• Experience within regulated industry such as Defence, Oil and Gas and Nuclear.

Benefits

As well as a competitive pension scheme, BAE Systems also offers employee share plans, an extensive range of flexible discounted health, wellbeing and lifestyle benefits, including a green car scheme, private health plans and shopping discounts – you may also be eligible for an annual incentive.

The Centralised C&I Team

You will contribute to defining and shaping the Command and Information (C&I) design for the Royal Navy's next-generation attack submarines. Your role will involve supporting the development of systems from initial concept through to final design. In this position, you will collaborate closely with internal teams, external stakeholders, international partners, and suppliers to ensure the successful delivery of this critical project. 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, and 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 (for example dyslexia, autism, an anxiety disorder etc.) that may affect your performance in certain assessment types, please speak to your recruiter about potential reasonable adjustments.

Security & Vetting

Please be aware that many roles at BAE Systems are subject to both security and export control restrictions. These restrictions mean that factors such as your nationality, any nationalities you may have previously held, and your place of birth can restrict the roles you are eligible to perform within the organization. All applicants must as a minimum achieve Baseline Personnel Security Standard. Many roles also require higher levels of National Security Vetting where applicants must typically have 5 to 10 years of continuous residency in the UK depending on the vetting level required for the role, to allow for meaningful security vetting checks.

Closing Date: 18th December 2025

We reserve the right to close this vacancy early if we receive sufficient applications for the role. Therefore, if you are interested, please submit your application as early as possible.