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 milestonesRequirements:
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 projectsEssential Certifications:
National Grid SAP (Senior Authorised Person) or equivalent (highly preferred)
NG Person or DNO equivalent
Relevant Electrical QualificationsDesirable:
Previous experience operating as NDH or LV Responsible Person
Background in HV commissioning environments
Experience across NG, SSEN, or SPEN projectsKey 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 deliveryAdditional 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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