Fire & Security Engineer Jobs UK

Fire and security engineers install, commission, and maintain life safety and security systems in commercial buildings — fire detection and alarm systems (BS 5839-1), suppression systems, emergency lighting, CCTV, access control, and intruder detection. Work is typically split between planned preventive maintenance (PPM) visits and reactive call-outs.

BS 5839-1 Level 3 is the benchmark qualification for fire alarm engineers in commercial FM. Many contracts also require FIA membership or NSI/SSAIB certification at company level. Security engineers working on CCTV and access control increasingly need SIA licensing. Salaries range from £32,000–£48,000 for experienced fire and security engineers, with senior roles on critical infrastructure contracts paying above £52,000.

See our BS 5839-1 Level 3 certification guide for current exam costs, approved providers, and the route to qualification for commercial FM engineers.