Process Engineer

Kier Group plc.; Maple Cross; On-site; GBP 45,000 - 65,000; Full time

Job summary

Kier Group plc. is seeking a Process Engineer to join the Maple Lodge Sewage Treatment Works upgrade led by Thames Water. You will contribute to a major infrastructure program that expands capacity and resilience, delivering safe, compliant process solutions.

You’ll develop and review process designs, produce models and mass balances, and collaborate across disciplines to ensure systems are ready for construction, commissioning and operation. Degree required.

Qualifications

• Degree in Chemical Engineering, Process Engineering or related discipline.
• Working towards Chartered or Incorporated status or equivalent experience.
• Strong understanding of water and wastewater treatment processes.
• Experience in process design for wastewater infrastructure projects.
• Collaborative with clients and stakeholders.

Responsibilities

• Develop and review process designs that are safe, efficient, buildable and aligned with legislation, industry standards and client expectations.
• Use site performance insight to identify risks, shape mitigation plans and support strong programme, quality and operational outcomes.
• Produce and review models, mass balances, control philosophies, technical reports and design documentation.
• Work across disciplines to ensure process solutions are fully integrated, coordinated and ready for construction, commissioning and operation.
• Collaborate with engineers, specialists, operators, construction teams and the client to develop solutions that are practical, safe and fit for purpose.

Skills

Process design

Team collaboration

Risk assessment

Project coordination

Education

Chemical Engineering degree

Process Engineering degree

Job description

Join us as a Process Engineer on one of Thames Water's most significant infrastructure upgrades at Maple Lodge Sewage Treatment Works. This major scheme will play a vital role in increasing treatment capacity, improving environmental performance and strengthening long‑term resilience for the region. It's an opportunity to be part of a high-profile project that combines complex civil, mechanical, electrical and process engineering challenges with meaningful outcomes for customers, communities and the environment. What will you be responsible for? As a Process Engineer, you'll be working within the Maple Lodge STW team, supporting them in delivering one of Thames Water's most significant infrastructure upgrades. Your day to day will include:

• Developing and reviewing process designs that are safe, efficient, buildable and aligned with legislation, industry standards and client expectations
• Using site performance insight to identify risks, shape mitigation plans and support strong programme, quality and operational outcomes
• Producing and reviewing key process deliverables, including models, mass balances, control philosophies, technical reports and design documentation
• Working across disciplines to ensure process solutions are fully integrated, coordinated and ready for construction, commissioning and operation

• Collaborating with engineers, specialists, operators, construction teams and the client to develop solutions that are practical, safe and fit for purpose

  You hold a degree in Chemical Engineering, Process Engineering or a closely related discipline

• You're working towards Chartered or Incorporated status with a recognised professional institution or bring equivalent professional experience
• You have a strong understanding of water and wastewater treatment processes, with practical experience in process design for wastewater infrastructure projects
• You're collaborative and enjoy working closely with clients and stakeholders to reach innovative solutions
• You're trusted to deliver what you promise and act safely and ethically at all times