> Markdown version of [/jobs/ext/2669292-principal-systems-engineer](https://www.wearedevelopers.com/jobs/ext/2669292-principal-systems-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Principal Systems Engineer

- **Company:** BAE Systems
- **Location:** Frimley, UK
- **Experience:** Expert
- **Salary:** £64,949.0
- **Contract:** Permanent contract
- **Skills:** Systems Engineering, Software Engineering, Systems Integration
- **Published:** September 2, 2026
- **Apply:** https://www.adzuna.co.uk/jobs/details/5810679936

## About the Role

* You'll have extensive experience in network or software engineering, ideally with a background in operations
 * You'll have the ability to take the lead on technical matters and provide expert guidance
 * You'll have Chartered Engineer status or be working towards it
 * You'll have familiarity with DOORS and prior hands-on experience using it
 * You'll have proven experience in change management processes

Essential Skills:

 * The ability to lead on technical issues
 * Chartered Engineer or willing to achieve Chartership status
 * Specialist knowledge in Combat systems would be preferable if specific to Submarines
 * Knowledge and prior experience of DOORS
 * Experience in Change management
 * Systems Engineering (INCOSE) qualifications (desirable)
 * Network or software engineering experience preferably ex-operator experience (desirable), You will be joining the In-Service Programme team, working on the V Class, where you'll thrive in a fast-paced environment, delivering high-quality results within tight enterprise timelines. As part of a medium-sized core team of 6-12, you'll also collaborate with a wider group of around 30, engaging with a broad stakeholder network. This role demands technical leadership, owning challenges, proactively solving problems, and working with the right stakeholders to drive solutions forward. We offer relocation support packages across all Submarines roles, subject to meeting eligibility criteria.

## Description

In this role, you will provide technical ownership of CCS design, As the Technical Lead for the project you will support the Engineering manager to deliver in-service programmes and lead key design decisions. You will oversee project scope, manage design changes and work closely with stakeholders and suppliers to identify and address risks early. You will lead programme-level design reviews, coordinate stakeholders and manage design baselines while ensuring design governance is maintained and Certificates of Design are produced where required. You will also review and influence technical requirements and architecture to support effective system integration across sub-systems and specialist areas, while providing subject matter expertise in the integration, validation and verification of software intensive systems.


## Related Videos

- [Model Based Systems Engineering in an Agile Product Development Process](https://www.wearedevelopers.com/videos/68-model-based-systems-engineering-in-an-agile-product-development-process)
- [Unlocking the potential of Digital & IT at Vodafone](https://www.wearedevelopers.com/videos/602-unlocking-the-potential-of-digital-it-at-vodafone)
- [The Avengers Initiative (Practical Ethics for Software Engineers)](https://www.wearedevelopers.com/videos/2070-the-avengers-initiative-practical-ethics-for-software-engineers)
- [AI Agents & Agentic AI](https://www.wearedevelopers.com/videos/2017-ai-agents-agentic-ai)
- [Why Your Best Mediors Never Become Seniors (And How to Fix It)](https://www.wearedevelopers.com/videos/2108-why-your-best-mediors-never-become-seniors-and-how-to-fix-it)
- [The Software Engineer 2030: From Coder To AI Orchestrator? - Patrick Schnell](https://www.wearedevelopers.com/videos/1825-the-software-engineer-2030-from-coder-to-ai-orchestrator-patrick-schnell)

## Related Articles

- [The Ultimate Software Engineer Career Path Guide for 2023](https://www.wearedevelopers.com/magazine/146-the-ultimate-software-engineer-career-path-guide-for-2023)
- [Is Software Engineering Hard?](https://www.wearedevelopers.com/magazine/448-is-software-engineering-hard)
- [Where to Find Entry-Level Software Engineering Jobs](https://www.wearedevelopers.com/magazine/397-where-to-find-entry-level-software-engineering-jobs)
- [The 12 Best Jobs for Software Engineers](https://www.wearedevelopers.com/magazine/401-the-12-best-jobs-for-software-engineers)
- [What is Software Engineering?](https://www.wearedevelopers.com/magazine/289-what-is-software-engineering)
- [Data Engineer Salary UK](https://www.wearedevelopers.com/magazine/253-data-engineer-salary-uk)