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Principal Systems Engineer

Job Details

The Role

Principal Systems Engineer

About BMT

We exist to navigate the most important and impactful engineering challenges of our time. We create environments where people with outstanding technical knowledge deliver meaningful, practical solutions. We are driven by a commitment to a safer, more efficient, effective and sustainable future. To find out more about BMT please go to

We know that diversity, equity, and inclusion are critical to achieving our purpose as a business. Our goal is to build more diverse teams and to create an environment where employees are engaged, thriving, and feel a sense of belonging.

Why work for us?

At BMT, our employee benefits are designed to ensure you have the resources you need to thrive.

In addition to a competitive salary, we offer a wide range of benefits in areas including health, family, finance, and personal development. An example of some of the benefits we offer.

“We’ve been Flexified, so you can trust that we’re a truly flexible workplace” To find out more about our verified flexible status, visit - Flexa Careers | Flexible Workplaces Offering Freedom & Choice

About the role

We are looking for both Senior and Principal Systems Engineers and as such you will be working with customers providing engineering and consultancy type skills.  Much of our work is acquisition and support orientated with MoD (DE&S, Defence Digital and Front-Line Commands) and the wider defence and security industry.  You will join an energetic and experienced team, supporting the delivery of systems engineering activities throughout the lifecycle.

Depending on grade you could be leading the development and management of User and System level requirements, V&V planning, acceptance and assurance management for complex systems and platforms.  Engaging subject matter experts as required to development requirements, risks or solution options. Defining or applying systems engineering processes (e.g. ISO15288:2015) across the lifecycle and developing appropriate engineering documentation, e.g. Strategy documents, Management Plans, Requirement Strategies, Acceptance Plans, Architectural Definitions, etc. Using your understanding of engineering within the MOD’s procurement framework, Knowledge In Defence (KID), to develop the engineering artefacts required to support the customer’s business case process and CADMID phases. Developing architectures across the enterprise using standard languages (Archimate, UML, SysML) and frameworks (MoDAF, TOGAF). Technical lead on projects, delivering identified engineering outputs within time, cost and quality constraints.

In terms of location, the Systems Engineering capability is based in the Bath office but with our people spread across the country we are very happy to explore flexible and hybrid working arrangements. Please note that travel to customer sites or to attend meetings will be required. These roles are nominally full-time but we recognise that sometimes the best people aren’t available full-time, so we are happy to consider part-time and Job-share.

About you

Ideally you will have some or all the following: 

Missing skills? Let us be the judge! BMT are passionate about people; we recognise that technology moves quickly and that no one can learn everything, which is why we seek those who can adapt and demonstrate the aptitude to learn. With enthusiasm and the right attitude, we can help you discover your potential.

Please note, the successful candidates must hold, or be eligible to obtain, UK security clearance to SC level.  DV clearance is desirable but not necessary.

Apply online

Does this sound like you? If so, please submit your application as soon as possible. We look forward to learning more about you. 


A message to recruitment agencies:  We receive applications exclusively via our ATS. Please note that we do not accept CVs submitted via email to the HR department or staff within our Operational teams. We will not progress CVs shared on a speculative basis by email and you accept our right to pursue such candidates with no obligation to third-party terms and conditions or liability to a fee

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