Electrical Commissioning Engineer

RESPONSIBILITIES

• Undertake electrical commissioning across HV substations, data centre infrastructure and renewable energy developments.
• Commission HV/MV switchgear, transformers, protection relays, control panels and auxiliary electrical systems.
• Support commissioning of 11kV, 33kV, 132kV and higher-voltage infrastructure, depending on project requirements.
• Perform primary and secondary injection testing, functional testing and protection verification.
• Carry out electrical inspections, insulation resistance testing, continuity testing and pre-energisation checks.
• Coordinate FAT, SAT and site commissioning activities with equipment manufacturers and specialist contractors.
• Support commissioning and integration of electrical infrastructure associated with data centre power distribution systems.
• Assist with HV energisation planning, switching arrangements and electrical safety documentation.
• Commission protection, control, SCADA and substation automation systems.
• Liaise with DNOs, transmission operators, principal contractors and client representatives.
• Review SLDs, protection schematics, technical drawings and commissioning procedures.
• Manage commissioning defects, punch lists and outstanding technical issues.
• Prepare commissioning reports, test sheets and handover documentation.

SKILLS / REQUIREMENTS

• Proven electrical commissioning experience across HV substations, data centres, BESS or major electrical infrastructure.
• Strong technical knowledge of HV/MV switchgear, transformers, protection relays and control systems.
• Experience with electrical testing, protection verification and energisation procedures.
• Understanding of HV electrical infrastructure and grid connection requirements.
• Experience with primary and secondary injection testing.
• Familiarity with FAT, SAT and functional testing.
• Ability to interpret electrical schematics, protection drawings and technical specifications.
• Experience coordinating with electrical contractors, specialist vendors and engineering teams.
• Strong understanding of electrical safety procedures and commissioning documentation.

CERTIFICATION

• HNC/HND or degree in Electrical Engineering, or equivalent experience.
• ECS / CSCS card.
• Relevant electrical safety qualifications.
• HV Authorised Person certification desirable.
• SMSTS or SSSTS desirable.

DESIRABLE

• Previous data centre or mission-critical infrastructure experience.
• Experience commissioning 132kV or 400kV substations.
• Experience on large-scale BESS developments.
• Familiarity with IEC 61850, SCADA and substation automation systems.
• Experience with National Grid interfaces and energisation activities.
• Knowledge of critical power infrastructure and integrated testing.