Electrical Commissioning Engineer

Electrical Commissioning Engineer - Data Centres / HV Infrastructure

Location: Northumberland & South Yorkshire
Contract Length: 6 Months
IR35: Outside IR35
Rate: £550 per day
Working Arrangement: Site-Based

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.

CERTIFICATIONS

• 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