Principal Systems Engineer - C&I

ZipRecruiter; Millom; Hybrid; GBP 100,000 - 125,000; Full time

Job summary

A prominent defense firm is seeking a Principal Systems Engineer to generate systems models and support system designs for the Royal Navy's next-generation submarines. This hybrid role involves collaboration with internal and external partners. Successful candidates will have experience in regulated industries and use systems engineering toolsets. Competitive benefits are included, and the closing date for applications is 24th September 2025.

Benefits

Competitive pension scheme

Employee share plans

Flexible health, wellbeing, and lifestyle benefits

Qualifications

• Degree qualified with experience in C&I domain.
• Proven experience in working with multi-discipline teams.
• Experience in regulated industries such as defence, Oil and Gas, and Nuclear.

Responsibilities

• Generate systems models for major C&I systems.
• Drive simplification within system designs.
• Manage systems modelling/engineering stakeholders.

Skills

Degree qualified

Working experience in C&I domain

Experience with multi-discipline teams

Requirements management experience

Use of Systems Engineering toolsets

Experience in regulated industries

Tools

CAMEO

Enterprise Architect

DOORs

Job description

Overview

Job title: Principal Systems Engineer – C&I

Location: Barrow (Hybrid). We offer a range of hybrid and flexible working arrangements – please speak to your recruiter about the options for this role. Salary: Negotiable depending on 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

Your skills and experiences

• 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- 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 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 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. 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 you may have previously held, and your place of birth can restrict the roles you are eligible to perform within the organisation. All applicants must as a minimum achieve Baseline Personnel Security Standard. Many roles also require higher levels of Security Vetting where applicants must typically have 5 to 10 years of continuous in the UK depending on the vetting level required for the role, to allow for meaningful security vetting checks.

Closing date

Closing Date: 24th September 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. LI-KI1 LI-Hybrid