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Principal Process Engineer Water Wastewater

Job in Bristol, Bristol County, BS1, England, UK
Listing for: Egis Group
Full Time position
Listed on 2026-09-01
Job specializations:
  • Engineering
    Process Engineer, Water Engineer, Environmental Engineer
Job Description & How to Apply Below

About the Role

The UK water sector is entering a period of unprecedented investment and transformation. As Egis accelerates the growth of its Water Business in the UK we are building a high-performing Process Engineering team to help shape this next chapter.

We are inviting applicants who want to play a meaningful role in delivering major water and wastewater programmes in the UK municipal and industrial sectors. Working within a collaborative multidisciplinary environment you will contribute to technically robust sustainable and innovative treatment solutions across nationally significant projects.

This is a rare opportunity to join at a key stage of our UK growth journey helping to establish shape and expand a process engineering capability built on Egis global infrastructure expertise and long-term commitment to the sector.

Key Responsibilities

  • Lead process design delivery on multidisciplinary water/wastewater treatment projects across the full design lifecycle.
  • Act as process technical lead on projects owning design strategy treatment process selection key decisions interfaces risks and quality of deliverables.
  • Review and approve process calculations mass balances PFDs P&IDs basis of design reports specifications technical notes models and supplier/contractor submissions.
  • Lead process modelling and simulation activities using tools such as Bio Win SUMO Dynamizu or equivalent packages.
  • Lead optioneering process capacity assessments value engineering design reviews HAZOP/SWIFT commissioning strategy and performance testing input.
  • Drive multidisciplinary coordination across Mechanical EICA civil/structural architectural MEP construction commissioning and operations teams.
  • Promote lean and digitally enabled delivery through standardised tools process models automation data analysis and reusable templates.
  • Provide technical assurance and support project managers with technical risk scope resourcing programme and change control.
  • Mentor and manage engineers where appropriate supporting recruitment development and chartership progression.
  • Contribute to bids client engagement opportunity shaping and growth of the process capability.

Qualifications :

Minimum Requirements

  • BEng/MEng or equivalent in Chemical Engineering Process Engineering or closely related discipline.
  • Chartered Engineer or Incorporated Engineer status with a relevant professional institution such as IChemE.
  • Typically 810 years relevant process design experience.
  • Background must be from water wastewater and/or biosolids/sludge treatment design.
  • Proven ability to act as process discipline lead or senior technical lead on multidisciplinary projects.
  • Strong technical expertise in water/wastewater treatment process design including process selection mass balance process capacity PFDs P&IDs and design basis development.
  • Practical experience using process modelling/simulation packages such as Bio Win SUMO Dynamizu or equivalent.
  • Strong understanding of UK water industry standards CDM 2015 process safety safety-by-design regulatory drivers and common delivery models.
  • Confident client-facing communicator with experience leading workshops technical reviews and design discussions.
  • Experience mentoring or managing engineers and supporting technical capability development.

Desirable Skills / Knowledge

  • Deep experience in wastewater treatment clean water treatment sludge/bioresources nutrient removal water reuse/recycling process optimisation chemical dosing energy recovery or low-carbon design.
  • Experience delivering AMP8 WINEP SRO D&B framework alliance or contractor-led projects.
  • Advanced capability in Bio Win SUMO Dynamizu process model calibration scenario testing dynamic simulation or operational optimisation.
  • Experience developing process design standards calculation tools modelling workflows QA processes or reusable digital templates.
  • Experience contributing to recruitment resource planning bid writing technical proposals client presentations or new service development.

Please note that you must have the right to work in the UK to be considered for this position.

Additional Information :

Whats in It for You

  • An exciting new growth role in a fastorganic growing UK business…
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