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Senior Mechanical Design Engineer

Job in Reading, Berkshire, RG1, England, UK
Listing for: Pertemps
Full Time, Part Time position
Listed on 2025-12-23
Job specializations:
  • Engineering
    Mechanical Engineer, Environmental Engineer
Salary/Wage Range or Industry Benchmark: 48080 - 72120 GBP Yearly GBP 48080.00 72120.00 YEAR
Job Description & How to Apply Below

Are you a Senior Mechanical Design Engineer with a passion for innovation and problem-solving? Join our team to support the creation of the 'Intelligent Client' driving our AMP8 ambitions and beyond. Your role will involve leading complex design processes in the water and wastewater industry, collaborating with multi-disciplinary teams, and ensuring compliance with stringent design codes.

As a critical team member, you will conduct root cause analysis investigations, provide technical input into project briefs, and oversee the development of new technologies for research projects. Additionally, you will be crucial in establishing a 'Centre of Excellence' for engineering and nurturing a sustainable engineering structure from graduates to industry experts.

Join us in shaping Thames Water's future of engineering. Your expertise and leadership will ensure our success in AMP8 and beyond.

What you’ll be doing as a Senior Mechanical Design Engineer
  • Complete the design of complex engineering processes in the water and wastewater industry.
  • Support multidisciplinary teams in developing solutions to engineering challenges for operational plants to ensure adherence to stringent design codes.
  • Lead and coordinate multi-disciplinary teams for mechanically biased projects.
  • Undertake equipment failure root cause analysis investigations to establish failure methods and reduce the impact and future occurrence.
  • Provide technical input into project definition briefs.
  • Provide mechanical input into asset surveys and plant condition assessments, feasibility studies, whole-life costing, and preliminary designs.
  • Provide technical sign-off and assurance during technical delivery, including handover.
  • Ensure we are compliant with engineering-based regulatory requirements in their area.
  • Support testing and development of new technologies for implementation in research projects.
  • Provide the technical sign-off (accountability) and assurance that the project's needs will be fulfilled during technical delivery, including handover and commissioning.
  • Develop new tools (software, programs, Apps, etc.) to enhance the Engineering team's capabilities.
  • Support the establishment of a ‘Centre of Excellence’ for engineering.
  • Support the establishment of a cohesive, sustainable engineering structure from graduate to industry experts that leads Thames Water’s engineering requirements into AMP8 and beyond.
  • Hybrid – Clearwater Court, you will be required in the office and on-site 2-3 days a week and as the business requires.

    36 hours a week, Monday to Friday.

    You must have a driver's licence and access to a vehicle for this role.

    What you should bring to the role
    • Be a recognised senior engineer (Chartered or close to achieving Chartered Status) in Mechanical Engineering with considerable experience in the water industry or a closely related equivalent sector.
    • Be degree qualified or equivalent in mechanical engineering with a relevant awarding body/working towards chartership.
    • Have design engineer knowledge at a detailed design level.
    • Provide background on supporting quantity surveyors/cost estimating teams in the scope development for cost modelling and budgetary proposals.
    • Be knowledgeable in any of the following: pumps/pipe systems, sludge, gas/CHP systems, and water/wastewater treatment process equipment.
    • Understand the regulatory environment to achieve compliance with our engineering regulatory requirements.
    What’s in it for you?
    • Competitive salary from £48,080 to £72,120 per annum.
    • 26 days holiday per year, increasing to 30 with the length of service. (Plus bank holidays)
    • Access to many benefits to help you take care of your and your family’s health and well-being, and your finances – from annual health MOTs and access to physiotherapy and counselling to Cycle to Work schemes, shopping vouchers and life assurance.
    Who are we?

    We’re the UK’s largest water and wastewater company, with more than 16 million customers relying on us every day to supply water for their taps and toilets. We want to build a better future for all, helping our customers, communities, people and the planet to thrive. It’s a big job and we’ve got a long way to go, so we need help from…

    Position Requirements
    10+ Years work experience
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