Security Systems Service Engineer London and Home Counties | Full-time | £32,000-£40,000 DOE + vehicle and benefits We're looking for an experienced Security Systems Maintenance Engineer to join a trusted, London-based integrator. This is mostly service and maintenance, with occasional small works and upgrades, across CCTV, access control, intruder alarms, fire alarms, intercoms, and related systems. You'll be responsible for ensuring all systems operate reliably, meet compliance standards, and provide effective security for clients. This is a hands-on, practical role where problem-solving and attention to detail are key. What you'll be doing Planned preventative maintenance, fault diagnosis, and repairs on Electronic Security Systems Responding to reactive maintenance calls and breakdowns Carrying out small upgrades and minor installation work when required Maintaining accurate service records, reports, and equipment documentation Providing technical support and training to end-users Participating in an on-call rota as needed What they're looking for Proven experience in maintaining security systems, including CCTV, access control, intruder alarms, and some fire alarms Knowledge of major system brands such as Pyronix, Honeywell, Scantronic, Menvier, Texecom, Hikvision, Paxton, C-Tec, Advanced, Kentec Understanding of networking principles (IP addressing, PoE, switches, diagnostics) Strong fa...