Process Engineer - Water​/Wastewater

Process Engineer – UK Water / Wastewater

Water | Wastewater | Biosolids/Sludge | AMP 8 | SROs | MEP-Led Team

• London | Bristol | Manchester (Hybrid)
• Process Engineering Design | UK‑Wide Impact | High‑Growth Environment

Egis is expanding rapidly in the UK, backed by a global team of more than 23,500 experts across 70+ countries. We design and deliver intelligent, sustainable infrastructure to address climate challenges and strengthen community resilience. As part of our fast‑growing UK Water team, you will join an agile environment where progression is quick, visibility is high, and your impact is immediate.

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.

• 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.

• 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…