For employers
Up to £54,600 per annum
Portsmouth, UK
£51,772 per annum
Warton, UK
£40,000 – £75,000 per annum
Stevenage, UK
Gloucester, UK
Job Title: Senior Software Engineer
Location: Portsmouth Broad Oak – On Site
We offer a range of hybrid and flexible working arrangements – please speak to your recruiter about the options for this particular role
Salary: Up to £58,900 depending on skills and experience
Who we are:
Join BAE Systems and you’ll be part of something bigger. As a valued member of our global colleague network, you’ll bring your unique skills and perspectives to help pioneer progress and protect what matters most. You’ll be trusted to play your part in delivering the advanced, technology-led defence, aerospace and security solutions of tomorrow, shaping a safer future, for all of us.
From the depths of the ocean, to the far reaches of space, there’s no limit to where a career at BAE Systems could take you.
Job Description:
Working within a multidisciplinary engineering team developing and enhancing advanced maritime simulation software used for naval training, operational concept development, and system testing. You will play a key role in modelling complex battlespace environments and defence systems, enabling engineering teams to validate capabilities within safe, realistic scenarios. This role offers the opportunity to improve simulation performance, enhance operational readiness, reduce development risk, and accelerate delivery of critical capabilities using modern software engineering and simulation technologies.
Core duties:
Essential Skills:
The MIMESIS Team:
The MIMESIS Product Team develops advanced maritime battlespace simulation software, modelling environmental conditions, platform behaviour, and complex systems such as sonar, radar, and weapons. The team supports naval training, system validation, and capability development through realistic, high-fidelity simulation.
Why BAE Systems?
Here you’ll build a career with purpose and limitless possibilities. With lifelong learning and meaningful work, this is a place where you can grow your career with confidence and be empowered to be your best. You’ll be recognised for your contribution and enjoy rewards tailored to what’s most important to you and your family, support for your financial and personal wellbeing, as well as a balanced lifestyle. In an environment embracing sustainable ways of working and with a strong sense of shared purpose, our supportive culture is a place you can feel you belong and proud of the difference you make.
A place where everyone can thrive:
We’re committed to building an inclusive workplace where everyone feels valued and supported. We know that a diversity of backgrounds, perspectives and experiences strengthens our teams and is vital to the work we do.
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 organisation. 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: 13th October 2026
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.
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Hybrid - Hybrid options are dependant on role and can range from fully remote to on-site full time
A little flex time – We offer a range of hybrid and flexible working arrangements depending on the role you apply for – explore your options with our recruiter during the application process.
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