Principal Software Engineer

Job Title: Principal Software Engineer
Location: Great Baddow – We offer flexible working arrangements – Part time & accruing hours available. Please let us know if you would like to discuss these options
Salary: Up to £75,900 (dependent on skills and experience)
What you’ll be doing:
Derive and maintain a set of software requirements from a baseline set of systems requirements
Produce and maintain a software design to meet a set of software requirements
Use a software design to produce a deliverable software solution
Undertake peer reviews or checking/verification of peers’ solutions across Maritime Services
Undertake technical reviews, verify and authorise software engineering designs
Act as an Engineering technical lead for a software solution at a sub-system level
Maintain a software solution to address reported defects and/or add new functionality
Support the development of individuals and teams to enhance skills and competencies
Produce or assist in the creation of software estimates for sub-systems
Your skills and experiences:
Good experience of using at least one high level programming language
Considerable experience of using a high-level design methodology – knowledge of UML
Strong experience of all aspects of the software lifecycle and good knowledge of software lifecycle models (e.g. Waterfall, Agile)
Have a BEng/BSc in Computer Science or other relevant Engineering or Numerate subject (technology, engineering or science related discipline)
Have good knowledge of appropriate software standards (e.g. ISO/IEC/IEE 12207)
Knowledge of Ada95
Have a CEng or equivalent level of capability or working towards CEng status
Have a comprehensive understanding of configuration management and experience of a configuration management tool
An understanding of model-based techniques is advantageous
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 Sampson Radar Software team:
The Sampson Radar Software team is a 30 plus personnel group that provides support and capability upgrades to the Royal Navy and their products. This role will deliver software products to the customer as part of a team delivering enhancements over the next 10 years, as well as providing ongoing support to existing products. You will have the opportunity to develop and enhance your skills and knowledge, with the potential to lead into more senior positions within a global business
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.
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 10th 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.
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