Senior / Principal Process Design Engineer

This is an excellent opportunity for an experienced Process Design Engineer to join a multidisciplinary team delivering a major programme of water and wastewater treatment projects across the UK. Opportunities are…

Pay rate £50 – £80/hour
Job type Temporary
Posted 24 September 2026

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About this job

This is an excellent opportunity for an experienced Process Design Engineer to join a multidisciplinary team delivering a major programme of water and wastewater treatment projects across the UK.

Opportunities are available at Senior and Principal level, with a strong focus on non-infrastructure treatment projects alongside wider water infrastructure.

The position is available remotely and would suit an established process engineer with experience across treatment works, process plant, plant layouts and associated automation.

The Role

You'll be involved in:

Delivering process design across water and wastewater treatment projects
Developing process engineering solutions throughout the design lifecycle
Supporting process plant and treatment system design
Contributing to plant and plantroom layout development
Producing and reviewing technical design information
Supporting automation requirements within process design
Coordinating with mechanical, electrical and civil engineering disciplines
Contributing to multidisciplinary design reviews
Resolving technical and coordination issues
Taking greater technical ownership at Principal levelWhat They're Looking For

Strong Process Design Engineering experience
Senior or Principal-level capability
Relevant engineering qualification or equivalent experience
Strong understanding of process design principles
Experience across water and/or wastewater treatment
Knowledge of process plant and plant layouts
Ability to produce and review technical engineering information
Strong multidisciplinary coordination skills
Ability to work effectively within a remote project environmentExperience across WTW, WWTW, process plant or automation-led treatment projects would be particularly beneficial.

Why Apply?

£50-£80 per hour
Long-term 18-month contract
Senior and Principal opportunities
Remote / UK-wide working
40 hours per week
Strong focus on water and wastewater treatment
Infrastructure and non-infrastructure project exposure
Multidisciplinary design environmentIf you're a Senior or Principal Process Design Engineer looking for a long-term remote opportunity across UK water and wastewater treatment, apply now to be considered

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