Assistant Commissioning Engineer Grafham Water Treatment Works, Cambridgeshire Posted 12 hours ago

Location: West of the region, Grafham, Pitsford and Clapham (Bedford) Milton Keynes
Contract: Permanent Full-Time (flexibility for Part-Time)
Salary: Circa £36,060

At Anglian Water, our values are that together, we will: Build trust, do the right thing, and we are always exploring.

Who We Are

Within the AW Engineering, our Commissioning team plays a critical role in bringing new water and water recycling assets to life. From testing systems for the first time to ensuring safe, efficient handover into Operations, we help deliver high-performing infrastructure that serves millions of customers. Working across capital projects and alongside our Alliance partners, we’re at the forefront of innovation, ensuring new treatment works and systems operate reliably, safely and efficiently from day one.

What Will You Be Doing as an Assistant Commissioning Engineer?

This is a hands‑on, site-based role where you’ll support the delivery of commissioning activities across a range of exciting water and water recycling projects. You’ll work closely with experienced Commissioning Engineers, gaining exposure to the full project lifecycle while building the skills needed to progress into a Commissioning Engineer role.

• Supporting the commissioning of new treatment works and systems, ensuring assets are safe, reliable and ready for operation
• Assisting in the development of Commissioning Plans, documentation and test procedures
• Carrying out factory and site acceptance testing (FAT & SAT), including "Motor Control Cubicle (MCC's) and Programmable Logic Controllers (PLC's), instrumentation and telemetry systems
• Supporting dry and wet commissioning activities and optimisation of treatment processes
• Assisting with fault finding and troubleshooting automated control systems
• Helping to produce handover documentation, ensuring all assets meet required standards before transfer to Operations
• Working closely with construction, design and operational teams to integrate commissioning with project delivery
• Supporting training of operational teams on new assets and systems

What Does It Take to Be an Assistant Commissioning Engineer?

• Mechanical and Electrical (M&E) apprenticeship or equivalent technical background
• Electrical Engineering qualification (Level3 or equivalent)
• Knowledge of MCCs, PLCs, instrumentation and control systems
• Understanding of water or water recycling processes (desirable)
• Strong problem-solving skills and a practical, hands‑on approach
• Good IT skills and ability to work with technical documentation
• Full UK driving licence
• A proactive attitude with a strong willingness to learn and develop

Why Anglian Water?

• Bonus scheme
• Private healthcare
• Competitive pension scheme
• Up to 26 days annual leave, increasing with service
• Flexible benefits to support your wellbeing
• Structured development and career progression opportunities

Inclusion is for Everyone We are an equal opportunity employer and welcome applications from all backgrounds. We are committed to creating an inclusive workplace where everyone feels valued and supported.

We are committed to reflect the diversity of the communities we serve in both our workforce and our supply chain partners to help us to understand and meet the needs of our customers. We are passionate and dedicated to the learning and development of our people, making sure they have the right skills and knowledge to be successful and to help achieve their potential. We want to give everyone equal access to our recruitment process.

If you have a disability or long-term condition, including neurodiversity and mental health conditions, we’ll support you throughout your application, and make any adjustments to make sure your disability or long-term condition is not a barrier to recruitment.

Closing Date: 8th September 2026

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