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Salary
≈ $41k – $86k per year (Estimated)
Location
In office (Peterborough)
Visa
Licensed UK visa sponsor
Employment
Full-Time

Confirmed on the employer's own hiring board on Nov 6, 2026. First seen by Alion on Oct 29, 2026. MWH Treatment scores A on the Alion truth index.

Overview
Company
Impact
Profile match
MWH Treatment is a UK design and build contractor for water and wastewater treatment works, part of RSK Group. It designs, builds and commissions treatment plants, pumping stations and process upgrades for UK water utilities under capital delivery frameworks. It hires site managers, project and proposals engineers, mechanical designers and procurement staff at sites across England, including Manchester, Preston, Peterborough and the London region.

We arelooking to strengthen our Construction team with an Electrical Site Supervisor based across our Norfolk Sites.

As a Site Electrical Supervisor, you’ll lead the supervision and safe delivery of electrical works across our projects. Working closely with the Lead Construction Manager and delivery teams, you’ll oversee electricians, electrical supervisors, and subcontractors to ensure work is completed safely, efficiently, and to the highest quality standards. You’ll also take on responsibilities as an Electrical Appointed Person, managing permits, isolations, and compliance with electrical safety rules.

What You’ll Be Doing

· Lead and allocate work to electrical supervisors, electricians, and apprentices across multiple projects

· Ensure compliance with @one Alliance electrical safety rules, statutory regulations, and method statements

· Issue permits for electrical works and isolations, ensuring safe systems of work are always followed

· Carry out site inspections, toolbox talks, pre-start briefings, and promote a proactive safety culture

· Monitor progress, track daily outputs, and resolve any issues that could impact delivery or budgets

· Oversee subcontractors and commissioning engineers, supporting safe commissioning and testing phases

· Ensure inspection and test plans, as-built drawings, and NICEIC certificates are completed to standard

· Manage plant, equipment, and material requirements to keep works progressing smoothly

· Support the development of electrical supervisors, apprentices, and self-delivery teams

· Promote innovation and digital tools to improve delivery and efficiency

Qualifications

We're seeking a proactive and experienced Site Electrical Supervisor with strong leadership and problem-solving skills.

You will ideally have:

· A CSCS affiliated Electrical Supervisor card and proven supervisory experience in electrical works

· Mechanical & Electrical experience within the water or construction industry

· BS7671 18th Edition qualification and C&G 2391/2394/2395 Inspection and Testing

· CITB SMSTS, First Aid, and EUSR National Water Hygiene Card

· Experience issuing permits and working as an Electrical Appointed Person (AP)

· Strong understanding of Electricity at Work Regulations, WIMES, and hazardous area compliance (DSEAR/ATEX)

· Excellent ability to read and interpret electrical drawings, SLDs, and panel schematics

· Strong communication and leadership skills with the ability to motivate and mentor teams

· IT skills and openness to adopting digital ways of working

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