Senior HV Substation Supervisor (400kV)

Mint Selection | B Corp; Exeter; On-site; GBP 55,000 - 75,000; Full time

Job summary

Mint Selection | B Corp is recruiting an experienced Substation Electrical Supervisor for a major UK energy infrastructure project based in Exeter.

You will supervise the 400kV substation package, coordinate HV switchgear, protection panels and LV cabling, and lead QA/QC, safety and commissioning through construction.

This long‑term contract calls for a hands‑on leader with NGET/NSI awareness and a track record of delivering high‑voltage substations to time and budget.

Qualifications

• Minimum 5 years' relevant substation experience.
• Experience with HV switchgear installation and protection panels.
• Experience on transmission‑level substations, ideally 400kV.
• Strong leadership, communication and organisational skills.
• Experience with RAMS and permit‑to‑work systems.

Responsibilities

• Supervise electrical installation activities across the 400kV substation package, ensuring works are delivered safely and to programme.
• Oversee installation of HV switchgear, transformers, protection & control panels, LV systems and cabling.
• Supervise electrical subcontractors and installation teams, providing technical support and resolving site issues.
• Ensure installations comply with drawings, specs, manufacturer requirements and transmission standards.
• Oversee QA/QC activities including inspections, ITPs, snagging and NCR management.
• Review installation documentation, records, test packs and quality documentation.
• Monitor progress, identify risks or design clashes and implement corrective actions.
• Coordinate with mechanical, civil and commissioning teams to align interfaces and energisation programme.

Skills

Electrical supervision

Substation experience

HV installation

Leadership

Communication

RAMS & safe work

NGET/NSI knowledge

Project coordination

Tools

GIS

Job description

Mint Selection | B Corp is recruiting an experienced Substation Electrical Supervisor for a major UK energy infrastructure project based in Exeter.

You will supervise the 400kV substation package, coordinate HV switchgear, protection panels and LV cabling, and lead QA/QC, safety and commissioning through construction.

This long‑term contract calls for a hands‑on leader with NGET/NSI awareness and a track record of delivering high‑voltage substations to time and budget.