Senior Process Engineer Water Wastewater

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 defined process design tasks or work packages across feasibility optioneering concept outline and detailed design.
• Prepare check and coordinate process deliverables including calculations mass balances PFDs P&IDs basis of design reports specifications datasheets and schedules.
• Take ownership of assigned process packages managing technical quality interfaces scope budget programme and change.
• Lead site surveys data reviews process capacity assessments and technical discussions with clients operators suppliers and contractors.
• Develop treatment process options and support selection of efficient robust and operable solutions.
• Coordinate process interfaces with Mechanical EICA civil/structural architectural MEP and construction teams.
• Support HAZOP SWIFT DSEAR HAC/HAP CDM/safety-by-design reviews commissioning strategies and performance testing.
• Apply process modelling simulation spreadsheets and data analysis to improve design quality and support evidence-based decisions.
• Review supplier/contractor submissions respond to technical queries and support construction commissioning and handover where required.
• Mentor Engineers and Graduates and contribute to process standards templates and delivery improvements.

Qualifications :

Minimum Requirements

• BEng/MEng or equivalent in Chemical Engineering Process Engineering or closely related discipline.
• Chartered Engineer status or significant CEng-level experience while actively progressing towards chartership.
• Typically 6 years relevant process design experience.
• Background must be from water wastewater and/or biosolids/sludge treatment design.
• Proven ability to deliver process design packages within multidisciplinary projects.
• Strong practical experience preparing and checking process calculations mass balances PFDs P&IDs basis of design reports specifications and technical documentation.
• Working knowledge of UK water industry standards CDM 2015 process safety safety-by-design and relevant regulatory requirements.
• Experience using process modelling/simulation advanced spreadsheets or data-led design methods to support treatment design.
• Good commercial awareness and ability to deliver to agreed scope budget and programme.
• Strong communication skills including ability to lead technical discussions and present recommendations clearly.

Desirable Skills / Knowledge

• Practical experience using Bio Win SUMO Dynamizu or similar water/wastewater process simulation packages.
• Experience with AMP8 WINEP SROs D&B framework alliance or major capital delivery environments.
• Experience in nutrient removal sludge/bioresources water reuse process optimisation chemical dosing energy recovery advanced treatment or low-carbon design.
• Experience supporting commissioning performance testing HAZOPs SWIFT reviews or technical assurance reviews.
• Experience mentoring junior staff and improving process workflows templates or technical standards.

• 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 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 - were 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 development chartership support & global mobility
• Supportive inclusive culture driven by sustainability and longterm community impact

Ready to Lead

Join Egis and play a pivotal role in shaping the future of sustainable water infrastructure across the UK.

We are committed to our planet

In each project we design engineer and operate we care deeply about the legacy were leaving behind. As part of our team youll have a unique opportunity to use…