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Egis in the UK Logo Egis in the UK · IT - Administration

Mechanical Engineer - Water / Wastewater

United Kingdom, London · Job Posted June 17, 2026
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Job Description

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 Mechanical Engineering team to help shape this next chapter. We are inviting expressions of interest from talented mechanical engineers at all levels, from Consultant through to Associate Director, who want to play a meaningful role in delivering major water and wastewater programmes. 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 Mechanical engineering capability built on Egis' global infrastructure expertise and long-term commitment to the sector.

Job Responsibility

  • Contribute/lead mechanical design packages, covering feasibility, optioneering, concept, outline and detailed design across major UK water/wastewater programmes (e.g. AMP8, WINEP, SROs, etc)
  • Lead and deliver mechanical design for water and wastewater infrastructure and non-infrastructure projects, including development of P&IDs, equipment sizing calculations, specifications, datasheets, schedules and procurement documentation for assets such as pumps, tanks, pipework, lifting systems and associated plant
  • Attending site visits for data acquisition and meeting site operators
  • Discussions and liaison with technology providers and vendors
  • Contribute to design risk management activities (e.g. HAZOP/SWIFT) and provide mechanical input to commissioning strategies and performance testing where required
  • Provide design support during delivery phases, including reviewing contractor submissions, answering design queries, and supporting handover/ commissioning activities when required
  • Contribute to business development and work winning: identify opportunities, shape scopes, contribute to bids
  • Contribute to recruitment, team development, mentoring and skills development efforts

Requirements

  • BEng/MEng (or equivalent) in Mechanical Engineering
  • Chartered Engineer, CEng (or working towards chartership, grade dependent) with a recognised institution (e.g., IMechE or similar)
  • Experience in delivering mechanical engineering design (ideally in the UK Water industry), including taking a lead role on a project or significant work package
  • Strong practical experience in preparing and reviewing mechanical design deliverables such as calculations, specifications, reports, datasheets, schedules, drawings and procurement documentation
  • Proven experience delivering mechanical designs within the water utilities sector, including treatment facilities, pumping systems and associated plant
  • Working knowledge of UK water industry standards, regulatory expectations, and safety-by-design/CDM as applied to treatment facilities
  • Previous experience in a consultancy environment or engineering company or other relevant industry acting as Mechanical Engineer
  • The ability to work accurately and flexibly, integrating your work with other discipline areas whilst managing your own /your team's work to tight programme and budget constraints
  • Proven ability to prepare high quality written technical reports and deliver verbal presentations to a high level of quality assurance for a variety of audiences
  • Be able to travel and visit operational works and construction sites as required, to act in a safe manner
  • You must have the right to work in the UK to be considered for this position

Nice to have

  • Experience in water reuse/recycling, bioresources/sludge treatment, energy from waste design
  • Experience leading on BD/work-winning contribution (or strong demonstrable aptitude): opportunity shaping, bid inputs, client development, and service-line growth
  • Experience with people management: building teams, hiring and mentoring, and setting a positive, delivery-focused culture

What we offer

  • Clear and accelerated career progression
  • Top Employers 2025 certification
  • Global leader in green infrastructure
  • 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 long‑term community impact
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