HV Substation Site Supervisor – Long-Term Contract

Randstad CPE; Holyhead; On-site; GBP 45,000 - 65,000; Full time

Job summary

Randstad CPE, on behalf of a tier-1 contractor, is seeking a National Grid Competent Person for the 132kV Substation project in Holyhead. The role involves overseeing live HV works, enforcing safety documentation and leading designated work parties.

You will act as the Competent Person, manage safety zones, and supervise civil, structural and cabling gangs, delivering daily RAMS reviews and briefings. Long-term assignment until Easter 2027.

Qualifications

• Qualified National Grid Competent Person (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.
• Willingness to lodge away.

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.

Skills

Competent Person National Grid

Site supervision

Team leadership

Education

SSSTS

SMSTS

NSI 6

NSI 8

Job description

Randstad CPE, on behalf of a tier-1 contractor, is seeking a National Grid Competent Person for the 132kV Substation project in Holyhead. The role involves overseeing live HV works, enforcing safety documentation and leading designated work parties.

You will act as the Competent Person, manage safety zones, and supervise civil, structural and cabling gangs, delivering daily RAMS reviews and briefings. Long-term assignment until Easter 2027.