M&E Manager

Position: M&E Manager
Location: Hertfordshire

M&E Manager – HV Substation (Wymondley, SG4)

Location:

Wymondley 400kV Substation, Hertfordshire
Rate: £500 per day (subject to review when stepping into SR163 Site Manager role)
Contract Type:
Full-time, site-based, contract
Duration: 6-month (part of an 18-month programme - high probability of extension)

Hours:

Monday to Friday, 10-hour days with occasional weekends
IR35 Status:
Outside IR35

MRR Infrastructure is supporting the delivery of a major 400kV substation build as part of the UK’s National Grid transmission infrastructure. This global engineering-led consultancy is a key delivery partner across multiple National Grid frameworks, known for its safety-first approach and commitment to technical quality.

We are seeking an experienced M&E Manager to lead the mechanical and electrical work streams on site. This position will initially support the Site Manager in day-to-day delivery and supervision, with the expectation to step into the SR163 Site Manager role as the project progresses.

This is a critical, high-visibility role requiring hands-on coordination of subcontractors, proactive oversight of compliance and programme progress, and a focus on delivering to National Grid’s standards of safety, quality and reporting.

Essential Qualifications &

Experience:

* Extensive experience on National Grid transmission projects

* National Grid Competent Person (NSI 6 &
8)

* SSSTS, SMSTS or IOSH Managing Safely

* CSCS Supervisor and First Aid trained

* CITB Temporary Works Supervisor or Coordinator

* HSG
47 and Impressed Voltage awareness

* Strong background in electrical supervision within the T&D sector

* Previous SR163 or TP137 appointment

Desirable:
HNC/HND in Electrical Engineering, formal electrical training, IOSH Environmental or equivalent