Process Improvement Engineer

Please note this is a fixed term contract opportunity for 6 months.

We are seeking a Process Improvement Engineer to join a high-profile team at an exciting time of change within the company. You will be responsible for leading and sustaining optimal process performance across Sewage Treatment Works, covering both effluent and sludge treatment streams.

Through data‑led insights and strong stakeholder engagement you will identify, develop and deliver process improvements that reduce cost, improve reliability, enhance energy efficiency, and support long‑term asset and business strategy.

• Act as the process technical leadership for assigned wastewater treatment sites.
• Support operations with reactive troubleshooting, optimisation, and proactive improvement across effluent and sludge treatment processes
• Own and maintain the Site Cockpit and Asset Availability System for wastewater treatment sites, encompasses digestion and dewatering sites.
• Facilitate regular operational discussion around Process Performance through weekly generation reporting packs, weekly generation meetings, site-based meetings, inter-siting reporting, and digester health-check reporting.
• Provide evidence-based recommendations to support operational decision-making
• Identify and develop potential Process Improvement opportunities across sites delivering Operational Expenditure (OPEX) reduction, Capital Expenditure (CAPEX) optimisation, Cost Avoidance.
• Initiate, develop, manage and implement projects within the EoW Programme, delivering multi‑million‑pound “spend to save” capital investments.
• Act as the technical interface between Operations and internal and external stakeholders.

Base location:

Hybrid
- Chertsey (STW), Hybrid
- Crawley (STW), Hybrid
- Earlswood (STW), Hybrid
- Esher (STW)

Working pattern or hours: 36 hours Mon-Fri

Necessary requirements for the role:
Full UK Drivers Licence as you will be responsible for operational support onsite for a few sites which require you to travel to site based on business requirement.

To thrive in this role, the essential criteria you’ll need is:

• Degree in Engineering (Chemical, Wastewater, Environmental or Mechanical preferred) and / or relevant industry experience and understanding of the wastewater business.
• Understanding of wastewater treatment processes and associated assets across both effluent and sludge streams.
• Excellent interpersonal and communication skills, with the ability to build effective working relationships with operational and technical stakeholders
• Hands‑on approach to support reactive process optimization activities on site.
• Possess analytical and troubleshooting capabilities to identify issues and drive practical and effective solutions.
• Good organisational and prioritisation capabilities.
• Full UK Drivers Licence.

• Competitive salary up to £50,000 per annum depending on experience.
• 26 days holiday per year increasing to 30 with the length of service (plus bank holidays)
• Performance-related pay plan directly linked to company performance measures and targets
• Generous Pension Scheme through AON
• Access to lots of benefits to help you take care of you and your family’s health and wellbeing, and your finances – from annual health MOTs and access to physiotherapy and counselling, to Cycle to Work schemes, shopping vouchers and life assurance.

Find out more about our benefits and perks (Please note different T&Cs apply if on secondment)

We’re the UK’s largest water and wastewater company, with more than 16 million customers relying on us every day to supply water for their taps and toilets. We want to build a better future for all, helping our customers, communities, people, and the planet to thrive. It’s a big job and we’ve got a long way to go, so we need help from passionate and skilled people, committed to making a difference and getting us to where we want to be in the years and decades to come.

Learn more about our purpose and values

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