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Posted 07 August, 2026

Commissioning Engineer

JAM Recruitment Ltd
EC1, ENG, GB Full Time

Job Description

Commissioning Engineer - Data Centres / Critical Power Outside IR35 East London 6 month initial contract with extensions likely Key experience required: * Experience commissioning diesel generators and critical power systems * Data centre, power generation or industrial commissioning background * Strong electrical knowledge across LV/HV systems and switchgear * Experience with generator controls, synchronisation and load testing * Ability to read electrical drawings and commissioning documentation * Experience with SAT, functional testing and client handover * Strong fault-finding and problem-solving skills * Able to work independently on site Key responsibilities: * Carry out commissioning and testing of critical power systems * Complete generator start-up, synchronisation and load testing * Support SAT, functional testing and final handover activities * Identify and resolve electrical and control system faults * Work with clients, project teams and equipment suppliers * Complete commissioning reports and test documentation * Ensure works are delivered safely and to project requirements Project focus: * Data centre commissioning projects across the UK * Critical power systems, standby generation and LV/HV infrastructure * Diesel generator installation, testing and handover * New-build and upgrade projects within live data centre environments * Mission-critical power delivery for major operators