Commissioning Technician/NDH (SAP) - Substation Project

Job Title: NDH / Commissioning Technician (LV Systems) - National Grid Substation
Location: Alyth Substation, Scotland, PH11 8DX
Start Date: ASAP
Duration: 10 months
Rate: 55-60/hour DOE
Hours: 45-50 Hours Per Week
Contract Type: Contract

Looking for a Commissioning Tech to act as a Senior Authorised Person (SAP) / Nominated Designated Holder (NDH) who can take ownership of LV electrical safety on a live National Grid substation project.

This is a key position acting as NDH, managing LV systems within a HV environment. This is ideal for someone with strong substation experience and confidence operating at that level.

The Role:
We are currently seeking an experienced NDH / Commissioning Technician to take responsibility for LV electrical safety systems on a major National Grid substation project.

This role sits at the intersection of commissioning and electrical safety, with responsibility for managing LV systems within a live HV environment. It is ideally suited to a Commissioning Technician or Engineer with SAP authorisation, capable of taking ownership of LV safety on site.

Key Responsibilities:

• Act as NDH (Nominated Designated Holder) for all LV systems on site
• Carry out and support commissioning activities across LV systems
• Manage LV isolations, permits, and switching activities
• Oversee temporary and permanent LV supplies within the substation
• Ensure compliance with all site safety rules and procedures
• Interface with SAPs, Commissioning Engineers, and Site Teams
• Support delivery of works in line with programme and project milestones

Requirements:

• Strong experience as a Commissioning Technician / Engineer on HV substations
• Proven capability managing or supporting LV systems within 132kV-400kV environments
• Experience working on National Grid or DNO substation projects

Essential Certifications:

• National Grid SAP (Senior Authorised Person) or equivalent (highly preferred)
• NG Person or DNO equivalent
• Relevant Electrical Qualifications

Desirable:

• Previous experience operating as NDH or LV Responsible Person
• Background in HV commissioning environments
• Experience across NG, SSEN, or SPEN projects

Key Attributes:

• Strong understanding of electrical safety and safe systems of work
• Ability to operate both hands-on and in a supervisory capacity
• Clear communication across commissioning and construction teams
• Proactive and safety-led approach to delivery

Additional Information:

• Working on a major UK transmission project
• Long-term opportunity with a strong pipeline of work
• Competitive day rates available (depending on experience)

If you or someone you know may be of interest, please get in touch for further details and to be considered.

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