Salary
≈ $38k – $80k per year (Estimated)
Location
In office (Preston)
Visa
Licensed UK visa sponsor
Employment
Contractor
Confirmed on the employer's own hiring board on Oct 20, 2026. First seen by Alion on Oct 6, 2026. MWH Treatment scores A on the Alion truth index.
Overview
Company
Impact
Profile match
Headquartered in Salford, United Kingdom, MWH Treatment is a leading integrated design and build contractor specializing in the water and wastewater sectors. Operating across major utility frameworks as part of RSK Group, the company delivers large-scale capital schemes, environmental infrastructure, and advanced process engineering solutions. By leveraging multidisciplinary technical expertise and modern digital delivery methods, it helps public and private water providers build resilient, energy-efficient facilities.
We arelooking to strengthen our Construction team with a ElectricalSite Supervisor based with in the Manchester & Wigan Regions.
You will report directly to the M & E Manager/ Lead Site Supervisorand your role will supervise and control all electrical site activities in the most efficient manner, to the specification and within the contract time without risk to the health and safety of all concerned and providing a quality end product, ensuring a Quality installation as the work progresses.
Key responsibilities will include:
- Supervision of site Electrical installations
- Ensuring SHE standards are maintained and safe systems of work are being adhered to.
- Ensuring a high-quality product is being produced in line with current standards and specifications.
- Verification of new electrical systems
- Safe isolation of LV electrical systems
- Monitor supply chain performance and programme
- Review and monitor supplier inspection and test plans ensuring they are up to date and relevant to the work activity.
- Attend site inductions and toolbox talks.
- Support Commissioning activities where required.
- Attend collaborative planning meetings and have an active role in developing site delivery programmes
- As Electrical Appointed Person, ensure electrical safety rules are adhered to and supporting documentation is produced in line with CMDP electrical safety rules.
- Carry out electrical isolations.
- Carry out regular electrical safety inspections on temporary and permanent equipment.
- Hold 121’s with supply chain supervisors as required ensuring take 5s are carried out.
- Assist with compilation of project takeover documentation
- Oversee electrical testing is being undertaken in line with BS7671, review test results against guidance note 3 and manufacturers literature.
- Issue limitation of access permits
- Keep a daily diary of site activities.
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