Substation Site Supervisor / National Grid Competent Person (PR-1562331) Holyhead, Wales

Salary: GBP38 - GBP45 per hour

Competent Person (Substations) 

Location: Penrhos, Holyhead

Rate: £38.00 – £45.00/hr (Umbrella PAYE) - Inside IR35

Hours: 07:30 – 16:30 (Monday – Friday)

Contract length: Ongoing until Easter 2027

 

The Opportunity

Looking for guaranteed site security on a major HV energy transmission scheme well into 2027?

 

We at Randstad are partnering with a tier-1 contractor to appoint a National Grid Competent Person for the ongoing 132kV Substation project in Holyhead. This is an immediate, long-duration assignment running until Easter 2027, overseeing and leading designated work parties inside live substation compounds.

 

Key Responsibilities

  • Act as the appointed Competent Person receiving and working under National Grid safety documentation (PTW / Limited Access).
  • Supervise civil, structural, and cabling gangs within live 132kV compound environments.
  • Manage and maintain safe work zones and green-tape demarcation as per NSI 6.
  • Control and monitor the movement and operation of plant, MEWPs, excavators, and cranes under NSI 8.
  • Deliver daily briefings, review RAMS, and enforce safe working clearances from live HV assets.

 

Requirements

  • National Grid Competent Person authorization (Current on EUSR).
  • NSI 6 & NSI 8 (Full).
  • Valid SSSTS or SMSTS.
  • Proven track record leading work parties on high-voltage substation builds/upgrades.
  • Right to work in the UK and full driving licence.

 

*We can consider candidates who are willing to lodge away.