Process Engineer - Water​/Wastewater

Job Description

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.

• Contribute to process design packages across feasibility, optioneering, concept, outline and detailed design for UK water/wastewater treatment projects.
• Prepare process calculations, mass balances, basis of design reports, process flow diagrams, P&IDs, sketches, datasheets, schedules and technical notes under senior guidance.
• Support option development, treatment process selection, hydraulic/process capacity checks and assessment of existing treatment assets.
• Attend site visits, asset surveys and data collection activities, including discussions with operators, suppliers and technology providers.
• Support multidisciplinary coordination with Mechanical, EICA, civil/structural, architectural and construction teams.
• Contribute to design and operational safety studies such as HAZOP, SWIFT, DSEAR, HAC/HAP and CDM/safety-by-design reviews.
• Use spreadsheets, process tools, data analysis and modelling/simulation outputs to support evidence-based design decisions.
• Support contractor/supplier reviews, technical queries, commissioning strategies, performance testing and handover where required.

Minimum Requirements

• BEng/MEng or equivalent in Chemical Engineering, Process Engineering or closely related discipline.
• Typically 4+ years’ relevant process design experience.
• Background must be from water, wastewater and/or biosolids/sludge treatment design.
• Experience preparing process design deliverables such as calculations, mass balances, process flow diagrams, P&IDs, basis of design reports and technical specifications.
• Understanding of water/wastewater treatment processes, process safety, CDM/safety-by-design and quality assurance processes.
• Ability to work with multidisciplinary teams and contribute to integrated, buildable and operable treatment solutions.
• Good digital capability, including Excel and relevant process calculation, data analysis or modelling tools.
• Ability to travel to operational works, construction sites and supplier facilities as required.

Desirable Skills / Knowledge

• Experience in wastewater treatment, clean water treatment, sludge/bioresources, water reuse/recycling, nutrient removal, chemical dosing, energy recovery or low-carbon treatment.
• Exposure to AMP8, WINEP, SROs, D&B, framework or alliance delivery environments.
• Awareness or practical use of process modelling/simulation packages such as Bio Win, SUMO or Dynamizu.
• Progress towards IEng or CEng with a relevant professional institution, such as IChemE.

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

What’s in It for You?

• An exciting new growth role in a fast‑organic growing UK business, offering clear and accelerated career progression
• Top Employers 2025
  -Egis recognised across four continents for excellence in HR practices, having been awarded the prestigious Top Employer 2025 certification. Top Employers Institute is the global authority on recognising excellence in people practices.
• A global leader in green infrastructure - we’re proud to lead the way in sustainable infrastructure, mobility and energy, innovating across the entire value chain and every aspect of the built environment.
• Highly competitive reward package
• Hybrid and flexible working
• 26+ days annual leave plus bank holidays
• Professional…