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
