> Markdown version of [/jobs/ext/345009-principal-fire-systems-engineer](https://www.wearedevelopers.com/jobs/ext/345009-principal-fire-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 Fire Systems Engineer - **Company:** PSR Solutions Limited - **Location:** London, UK - **Contract:** Permanent contract - **Skills:** Computer-Aided Design, Systems Engineering, Value Engineering - **Published:** June 16, 2026 - **Apply:** https://www.apply4u.co.uk/jobs/x/39169549/ ## About the Role Degree/HNC/HND in Mechanical Engineering or similar. LPCB Basic Sprinkler Design Certification (even though it's more suppression-related, it's listed here). Fire Detection Training: BS 5839-1 Fundamentals - Units 1 & 2 BS 5839-1 Fundamentals to Advanced Professional body membership (IFE, IMechE). Engineering Council registration encouraged (EngTech / IEng / CEng). Technical Skills & Knowledge (Essential) Deep understanding of: BS 5839-1 (Fire Detection & Alarm design) Network Rail / TfL standards Passive and active fire safety systems Skilled in Fire Detection system design, BIM/CAD, and design assurance. Authoring complex Cause & Effect documentation. Familiarity with audit processes (BRE Global etc.). Experience (Essential) Significant experience designing Fire Detection and Suppression Systems in Rail sector projects. Strong track record of managing client expectations, stakeholder coordination, and design integration. ## Description Design & Delivery Lead the design and design verification of Fire Detection systems. Ensure compliance with BS 5839-1 and client-specific standards (e.g., Network Rail, TfL). Review and manage MEP consultants' designs for: Safety by design Technical adequacy Constructability & maintainability Interface integration Documentation & Compliance Develop and author Fire Alarm Cause & Effects documents. Coordinate all third-party system interfaces (e.g., HVAC, BMS, life safety). Ensure design standards meet BRE Global / FM Global accreditation criteria. Manage the LPS1014 F353 form to maintain compliance. Stakeholder Coordination Work with Engineering Managers, Project Managers, and CREs to ensure design strategy meets cost, quality, and timeline targets. Provide technical responses, lead standardisation efforts, and promote value engineering. Represent the team during meetings with accreditation bodies and clients. Project & Line Management Oversee and support procurement, tendering, and installation phases. Mentor and develop junior, graduate, and intermediate engineers. Lead small engineering teams in project delivery. Actively participate in H&S management via the Notify system. ## Related Videos - [What makes Cybersecurity different for critical infrastructure?](https://www.wearedevelopers.com/videos/571-what-makes-cybersecurity-different-for-critical-infrastructure) - [Your next 10x engineer isn't in your city. Refactor accordingly.](https://www.wearedevelopers.com/videos/100103-your-next-10x-engineer-isn-t-in-your-city-refactor-accordingly) - [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) - [Why You Should Care About the Decentralized Computing Movement](https://www.wearedevelopers.com/videos/999-why-you-should-care-about-the-decentralized-computing-movement) - [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers) - [Automated Driving - Why is it so hard to introduce](https://www.wearedevelopers.com/videos/628-automated-driving-why-is-it-so-hard-to-introduce) ## Related Articles - [Data Engineer Salary UK](https://www.wearedevelopers.com/magazine/253-data-engineer-salary-uk) - [Software Engineer Salary London](https://www.wearedevelopers.com/magazine/252-software-engineer-salary-london) - [Software Engineer Salary in The UK](https://www.wearedevelopers.com/magazine/231-software-engineer-salary-in-the-uk) - [Events like RSAC Get You CISOs. Developers Decide What Actually Gets Deployed.](https://www.wearedevelopers.com/magazine/693-events-like-rsac-get-you-cisos-developers-decide-what-actually-gets-deployed) - [Data Analyst Salary in the UK](https://www.wearedevelopers.com/magazine/278-data-analyst-salary-in-the-uk) - [Fullstack Developer Salary UK](https://www.wearedevelopers.com/magazine/251-fullstack-developer-salary-uk)