O&M​/Process Engineer; Water Treatment

To support the O&M Interface function and Project Leadership in the technical review, operational readiness, and coordination of works within a live Water Treatment Plant environment. The role is focused on ensuring that activities are fully aligned with operational requirements, treatment process integrity, and safe working practices inside a functioning plant. The role, based at the Coppermills WTW (London E17), requires an engineer capable of rapidly understanding the treatment process, navigating the plant independently, and contributing effectively to design reviews, technical assessments, and operational integration activities.

• Review contractor and designer documentation (drawings, TQs, RFIs, method statements).
• Identify gaps between design intent and operational requirements.
• Propose practical improvements aligned with operability, maintainability and safety.

• Attend coordination meetings with designers, contractors and client stakeholders.
• Represent operational considerations during design development and early works planning.
• Support constructability reviews, outage planning and operational risk assessments.
• Provide technical input to project leadership on operational impacts.
• Support contractor inductions and accompany technical site visits within the live plant environment.

• Support review of early works activities (trial holes, utility investigations, temporary works).
• Review survey outputs and assess operational implications within a live site.

• 3+ years' experience in water or wastewater treatment (design, construction or operations support).
• Experience reviewing technical drawings and documentation.

• 5+ years' experience in water treatment.
• Experience with in a live operational treatment plant environment.
• Experience in design coordination or interface roles.
• Familiarity with UK water industry standards.
• Good understanding of hydraulic and process systems.
• Ability to interpret P&IDs and plant documentation.
• Practical, solution-oriented mindset.
• Able to operate with a degree of autonomy in a complex project environment.
• Strong communication skills.

ACCIONA is a global company, leading in the development of regenerative infrastructure that creates a positive impact on society. Our workforce consists of more than 65,000 professionals, present in more than 40 countries across the five continents, all contributing in our mission to design a better planet. Are you a passionate individual who wants to make a difference, promote sustainable development, and find solutions to the biggest global challenges including climate change, overpopulation, and water scarcity?

Come and join us in building the infrastructure our planet needs to achieve a sustainable future.