
Location
Isleworth, London with travel to multiple Thames Water sites across West London and Thames Valley. Base location within South West London. Travel required to various sites, some journeys up to approximately 150-mile round trips. A full UK driving licence, access to a vehicle, and insurance for work travel are required. A monthly car allowance is provided.
Hours
Monday to Friday, 36 hours per week.
Salary
Up to £55,000 per annum including car allowance, depending on experience and skills.
About the Role
As a Fire Alarm Engineer, you will assist the Lead Project Engineer in delivering all aspects of fire alarm installations, including minor and major works. You will report on the progress and quality of work before handover. This role involves site visits to assess contractors' work against electrical and fire standards, compiling reports with photographic evidence, advising and scoping works with contractors, and carrying out fire alarm risk assessments to BS 5839-1 standards. You will also be involved in writing specification documents, health and safety management for your project portfolio, assessing tenders, financial and programme management, and providing technical assistance and communication to key stakeholders. In-house training will be provided to support progression towards a Project Engineer role. Thames Water is the UK’s largest water and wastewater company, committed to building a better future for customers, communities, people, and the planet. This role offers meaningful career opportunities, flexible working arrangements, and excellent benefits.
Experience
Experience in a commercial and/or technical role is essential. Strong installation knowledge including electrical standards (especially containment) and Fire Standards to BS 5839 Pt 1 is required.
About you
You must be able to work unsupervised, use your own initiative to deliver specified outputs, and have excellent communication skills. You should be motivated to progress towards a Project Engineer role and comfortable managing multiple projects and stakeholders.
Qualifications
FIA BS 5839-1 Fundamental or equivalent certification in Fire Alarm principles and standards is required. A full UK driving licence and access to your own transport are essential.
Thames Water




















