Principal Engineer – Combat Systems Domain Specialist

Would you like to be part of the Astute In-Build System Engineering team? We currently have a vacancy for a Principal Systems Engineer at our site in Frimley.

As a Principal Systems Engineer, you will be a part of the Astute In-Build System Engineering team delivering the Combat System Common Infrastructure design for the Astute submarine programme. You will be working on both upgrade and new equipment programmes at a combat system level across a wide spectrum.

This role will provide you with the ability to gain experience of combat system interfacing of surface and sub-surface sensors. This role will provide the opportunity to work on a high-profile engineering programme, enabling you to interact with several internal and external stakeholders including the Ministry of Defence.

Your main responsibilities as a Principal Systems Engineer will involve:

Managing and delivering design baseline artefacts for the Common Combat System focussing on requirements and acceptance by the customer

Defining the Astute design baseline products focussing on Physical Breakdown Structure (PBS) and Function Breakdown Structure (FBS)

Co-ordinating and managing combat system requirement sets change control process via the combat system change management process

Ensuring developed solutions are clearly defined, integrated, configured, controlled and delivered, including resolution of conflicts and integration issues that occur through development and delivery phases

Leading the management and development of the system requirements through DOORS, and related assurance activities

Supporting the development of submarine system technology updates and design improvements

Liaising with the Engineering Manager and submarine system Technical Authorities in the development of the requirements and designs

Liaising with internal and external customers to ensure system requirements are adequately supported through planning, installation, integration and trial activities

Ensuring requirements are implemented, and qualification evidence is generated either by the equipment supplier or on their behalf

Providing realistic programme status, identifying problem areas and implementing agreed recovery plans

Your skills and qualifications:


Demonstrable Systems Engineering experience, including managing requirements and acceptance activities

An understanding of lifecycle management

Experience of working with the DOORS (or similar) software package for requirements management

Degree level qualification in STEM or equivalent qualification or experience


Understanding of DOORs and Enterprise Architect

Chartered, or working towards chartered qualification

What we’re looking for in you:

You will have good written and verbal communication skills to enable you to work with a range of stakeholders within a multidiscipline defence supplier environment of engineering. You will be self-motivated, with a desire to learn and the ability to adapt to changing circumstances while having an enthusiasm for problem-solving. You will also have the ability to multi-task between multiple concurrent tasks at different stages of the lifecycle.

Location: Frimley, Surrey

Salary: Competitive

Benefits: Our employees receive an excellent benefits package which includes a competitive pension scheme, enhanced annual leave allowance and a Company contributed Share Incentive Plan. We also offer a range of additional benefits such as flexible working, an employee assistance programme, Cycle2work and many local and national employee discounts. Some employees may also be eligible for an annual incentive.

BAE Systems

BAE Systems is one of the world’s leading global defence, security and aerospace companies. We work at the cutting edge of technology, creating more than 100 new inventions every year for customers in over 100 countries.

Maritime – Submarines

Our Submarines business has been safely delivering world class submarines to the UK Royal Navy for more than a century.

The Astute class will equip the Royal Navy with its largest and most capable generation of attack submarines. We are responsible for the design, build, test and commissioning of these state-of-the-art vessels. In total, seven boats will make up the fleet, each weighing a mighty 7,400 tonnes.

Dreadnought is the successor to the Vanguard class of nuclear deterrent submarines. We will deliver four submarines to the Royal Navy, with the first submarine entering service in the early 2030s. Dreadnought is widely considered to be one of the world’s most complex engineering challenges.

We have sites in Barrow-in-Furness, Filton, Frimley, Ash Vale, Broad Oak and Weymouth, and we pride ourselves on employing the best professionals around. Join us and you’ll be part of something important; something you can be proud of.

We recognise that an inclusive and diverse workplace – where all employees feel respected, valued and able to achieve their full potential – is vitally important. Not only does it inspire creativity and collaboration, it’s good for business. We celebrate our differences and believe our diverse skills, abilities and perspectives strengthen our culture and our overall performance.

We welcome applications from all suitably qualified people.

Please be aware that many roles working for BAE Systems will be subject to both security and export control restrictions. These restrictions mean that factors including your nationality, any previous nationalities you have held, and/or your place of birth may limit those roles that you can perform for the organisation.

Due to the volume of applications we receive, we sometimes close our vacancies early. It is therefore advisable to apply as early as possible if you would like to be considered for a role with BAE Systems.

More Information

Leave your thoughts

Share this job

Recruiter Click popular Job Alerts service allows you to stay up-to-date with the latest jobs matching with your criteria.Set up keywords and save your searches to ensure you get the best jobs first,Want to get job matched in less than 30 seconds? Get the job before others do! Be the first to apply.



Contact Us



Company Registration Number 12012771