Site Manager - NG Person & CP (NSI 6&* Full)

Job Title: Site Manager (M&E) - National Grid Substation Project
Location: Indian Queens National Grid Substation, United Kingdom
Start Date: 18/05/2026
End Date: 27/11/2026
Hours: 07:30 - 17:30 (50 Hours Per Week)
Rate: £650 per day (Negotiable)
Contract Type: Temporary Contract
IR35: Inside IR35 (client-led working arrangement)

We are currently seeking an experienced M&E Site Manager to join a major National Grid substation project at Indian Queens.

This is a key site leadership role on a live transmission infrastructure project, requiring a strong background in mechanical and electrical delivery within the electricity transmission sector, alongside proven National Grid authorisations and substation experience.

This is an excellent opportunity for a highly competent Site Manager with experience working across 66kV-400kV substations, overseeing safe and efficient project delivery within a heavily regulated environment.

Key Responsibilities:

• Oversee day-to-day M&E site operations on a live National Grid substation project
• Ensure works are delivered safely, efficiently, and in line with programme requirements
• Manage subcontractors, site teams, and coordinate project activities
• Maintain compliance with National Grid transmission procedures and site safety requirements
• Ensure adherence to CDM regulations, HSE legislation, and project documentation standards
• Support delivery in line with NEC contract frameworks
• Monitor quality, progress, and safe systems of work throughout project execution
• Liaise with project stakeholders, engineers, and delivery teams
• Ensure all works are carried out in accordance with transmission construction methodologies

Essential Requirements:

• National Grid Competent Person - NSI 6 & 8 Full
• MUST hold current National Grid Person authorisation
• Previous or current TP137 authorisation
• Impressed Voltage Awareness
• Proven experience working on 66kV-400kV substations
• Strong understanding of National Grid transmission procedures
• Mechanical or Electrical Engineering qualification
• SMSTS / CITB
• NEBOSH or IOSH
• Temporary Works Supervisor
• HSG47 (or equivalent)
• 3-Day First Aid
• NEC contract knowledge
• Strong knowledge of HSE legislation
• IT literate
• Manual Handling

Desirable:

• Extensive experience delivering M&E packages within the electricity transmission sector
• Strong stakeholder and subcontractor management capability
• Proven background on live National Grid infrastructure projects

If you're an experienced National Grid-authorised Site Manager looking for your next long-term contract opportunity, get in touch today.

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