Process Commissioning Engineer

About the Role:

Our client is seeking a Senior Process Commissioning Engineer to deliver successful commissioning of wastewater capital projects across the Wessex region.

You’ll provide technical expertise from design through to construction, and lead projects into operation with a focus on optimisation, reliability, and compliance.

Key work streams during AMP8 will involve Phosphorus Removal schemes (often with tertiary solids removal, capital maintenance, and new process stages), plus several larger non-P schemes. You’ll also support the Asset Commissioning Manager with staff development and team strategy.

Our client is a leading utility business delivering sustainable wastewater services across the South West. They are well-regarded for strong performance, innovation, and professional development opportunities, while offering a supportive and inclusive working culture.

• Provide technical input during project design and construction.
• Support Commissioning Engineers with technical queries.
• Attend design reviews and HAZOPs.
• Deliver process risk assessments for construction activities.
• Undertake software FATs and SATs.
• Commission new process units and optimise performance.
• Carry out process and mechanical reliability testing.
• Drive projects through to successful commissioning.

• 10+ years’ wastewater process project experience, with at least 5 years in the UK/European water industry.
• Degree-level qualification in a relevant scientific or engineering field.
• Chartered status (highly beneficial).
• Ability to work independently and take initiative.
• Strong facilitation, interpersonal, and communication skills.
• Detail-oriented with excellent problem-solving ability.

• £500-£530 per day (CIS, Inside IR35).
• 12+ month contract with potential for extension.
• On-site role in the Wessex region.
• The chance to lead high-profile wastewater projects with real impact.

• Must be eligible to work in the UK.
• Commitment to diversity and inclusion – applications welcome from all backgrounds.
• Adjustments available during the recruitment process on request.

We are an equal opportunity employer and value diversity in our company. We do not discriminate on the basis of race, religion, colour, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.