Electrical Supervisor

Kier Group; Hatching Green; On-site; GBP 42,000 - 54,000; Full time

Job summary

Kier Group is seeking a Working Electrical Supervisor to join our Wastewater Asset Assurance Programme in Harpenden, Hertfordshire. You will supervise on-site electrical installation works on Thames Water sites, support permanent and temporary installs, and drive safety and quality across teams.

You will mentor apprentices, produce RAMS, manage ITPs in our common data environment, and ensure LV isolation and safety documentation meet asset standards.

Qualifications

• Full driving licence required.

Responsibilities

• Installing low-voltage electrical systems, including containment systems, power and control cables, and testing installations.
• Supervising electricians and providing mentorship to apprentices to help develop their skills.
• Producing and reviewing electrical RAMS and managing project ITPs through our common data environment.
• Providing safe isolations of LV electrical systems and issuing electrical safety documents to nominated competent persons.
• Conducting electrical audits and ensuring installation works align with Thames Water asset standards.

Skills

JIB Gold Card / ECS card

Electrical supervision

Problem solving

Supervising electricians

Electrical inspection & testing

Education

C&G 2330 or 2360 in electrical installations

NVQ Level 3 in electrical installations

IEE 18th edition wiring regs

Tools

RAMS management

Common Data Environment

Job description

We're looking for a Working Electrical Supervisor to join our Wastewater Asset Assurance Programme team based in Harpenden, Hertfordshire.

Location: Harpenden, Hertfordshire

Hours: 45 hours per week - some flexibility on hours available if desired, just let us know when you speak to us.

We are unable to offer certificates of sponsorship to any candidates in this role.

As a Working Electrical Supervisor, you'll play a key role in our Wastewater Asset Assurance Programme, carrying out hands‑on electrical installation works on Thames Water sites for both permanent and temporary installs. You'll supervise and support other electricians, ensuring all works meet the highest standards, and conduct electrical inspection and testing. This is an excellent opportunity to join a developing self-delivery team working alongside our established MEICA delivery team.

What will you be responsible for?

• Installing low-voltage electrical systems, including containment systems, power and control cables, and testing installations
• Supervising electricians and providing mentorship to apprentices to help develop their skills
• Producing and reviewing electrical RAMS and managing project ITPs through our common data environment
• Providing safe isolations of LV electrical systems and issuing electrical safety documents to nominated competent persons
• Conducting electrical audits and ensuring installation works align with Thames Water asset standards

What are we looking for?

• You hold a Full driving licence and relevant JIB Gold Card / ECS card
• You have proven experience in the Water Industry with strong problem‑solving skills
• You hold C&G 2330 or 2360 in electrical installations, NVQ Level 3 in electrical installations, and IEE 18th edition wiring regs
• You have SMSTS, Confined Spaces, and C&G 2391 Inspect and Test qualifications
• You have a good working knowledge of sewage and water treatment processes, systems, and typical M&E plant and equipment

We're all about finding potential here at Kier, and transferrable skills are always welcome!

Rewards And Benefits

We're proud to be able to offer our brilliant people a wide variety of benefits that you can tailor to your needs. You can see more information of benefits here.

Diversity and inclusion

Making Kier a diverse and inclusive place to work is a huge priority for us. We're proud of the steps we've taken so far, but we know we must always do more. Our employees are key in shaping Kier's diversity and inclusion initiatives and our people have made a huge impact on how we work, by using their experiences to shape our policies. You can see our D&I action plan here. As a Disability Confident employer, we will ensure that a fair and proportionate number of disabled applicants that meet the minimum criteria for this role will be offered an interview.