Principal Mechanical Engineer

2 months ago


Reading UK, Berkshire, United Kingdom Thames Water Full time

As the Principal Mechanical Engineer, you have a unique opportunity to lead a dynamic team of engineers. Your leadership will be instrumental in shaping the ‘Intelligent Client’ that will propel us towards our ambitious AMP8 goals and beyond. Your expertise in Mechanical Engineering is essential but crucial to the success of our pioneering projects.


Join us in this exciting role where your contributions can make a difference. Help us redefine the future of engineering at Thames Water and be part of a transformative journey This is not just a job but a career-defining opportunity that will propel your professional growth.


What you’ll be doing as a Principal Mechanical Engineer:

Elevate Engineering Excellence

  • Define Success - Set precise technical requirements with Project Definition Briefs, ensuring projects start strong.
  • Innovate Continuously - Refine Technical Asset Standards to enhance efficiency and effectiveness in our processes.

Commitment to Compliance

  • Champion Regulations -Uphold Engineering Regulatory standards in Mechanical Engineering to ensure our assets thrive.
  • Design Solutions - Lead the creation of innovative designs for the water and wastewater industries.

Collaborative Spirit

  • Synergize Teams - Work with multi-disciplinary teams to tackle engineering challenges and ensure adherence to strict design codes.
  • Lead with Impact: Guide teams on mechanically focused projects, making a meaningful difference.

Transform Failures

  • Learn and Improve - Conduct equipment failure root cause analysis to reduce future occurrences and enhance reliability.

Technical Expertise

  • Contribute Value - Provide essential insights for project definition briefs and asset assessments.
  • Ensure Delivery - Achieve technical sign-off and assurance throughout project delivery and handover.

Drive Innovation

  • Pioneer Technology - Support the development of cutting-edge technologies in research.
  • Develop Tools - Create innovative software and apps to empower our engineering team.

Empower Future Leaders

  • Establish Excellence - Help create a Centre of Excellence that nurtures talent and fosters growth.
  • Mentor Emerging Talent - Guide graduates and apprentices, shaping the next generation of industry experts.


Hybrid – Clearwater Court, Reading, you will be required to attend the office or site 3-4 days a week

36 hours a week

You will be a driver and have access to a car; this role comes with £5.8k car allowance.


What you should bring to the role:

  • Be degree qualified or equivalent in mechanical engineering with charters through a relevant awarding body.
  • A Mechanical Engineering background in one or more sludge digestion and treatment, biogas and CHP systems, water and wastewater treatment, pumps/piping systems, or process equipment is essential.
  • Understanding of the regulatory environment to achieve Compliance with our Engineering regulatory requirements.
  • Had exposure to lead design engineering roles.
  • Exposure to supporting quantity surveyors/cost estimating teams in the scope development for cost modelling and budgetary proposals.
  • Understand the regulatory environment to achieve compliance with our engineering regulatory requirements.


What’s in it for you?

  • Competitive salary.
  • 26 days holiday per year increasing to 30 with the length of service. (Plus bank holidays)
  • Car Allowance.
  • Annual Bonus.
  • Private Medical Health Care.
  • Contributory pension – Defined Contribution - Maximum of 12% -2x employee contribution.
  • Personal Medical Assessments – Open to all once a year.
  • Wider benefits scheme including our benefits hub, which is packed full of offers and information to save you money and support your wellbeing.


Who are we?

At Thames Water, our purpose is crystal clear - to deliver life’s essential service so our customers, communities and planet can thrive.

Water is life’s great leveller. Every living thing needs it, every single day. From people to plants, birds to bees, farms to factories, we all need it to thrive, and we’re committed to taking care of it for us all.

But keeping water flowing is becoming harder. From scorching summers to wetter winters, extreme weather affects everything from our pipes to our local rivers. We need to keep millions more kettles boiling, public services operating, washing machines spinning, showers running and more, so every drop is more precious than ever. Are you ready to play your part?


Working at Thames Water

At Thames Water, we recognise that people are at the heart of our business. To help us succeed in providing life's essential service, we need a range of skills and capabilities, representative of society throughout our business.


We seek to attract and retain a cultural mix of people who can offer different but complementary attitudes, values, talents, and knowledge. We understand the importance of appreciating and harnessing the unique skills, experiences, backgrounds, and differences that each individual brings.

Our over-arching diversity and inclusion aim is to ensure Thames Water is a diverse and inclusive great place to work. We encourage applications from everyone and offer extra support for those who need it throughout the recruitment process.


Find out more about working at Thames Water.


When a crisis happens, we all rally around to support our customers. As part of Team Thames, you’ll have the opportunity to sign up to support our customers on the frontline as an ambassador. Full training will be given for what is undoubtedly an incredibly rewarding experience. It’s also a great opportunity to learn more about our business, meet colleagues and earn some extra money along the way.


Disclaimer: due to the high volume of applications we receive, we may close the advert earlier than the advertised date, so we encourage you to apply as soon as possible to avoid disappointment.



  • Reading, UK, Berkshire, United Kingdom IC Resources Full time

    Junior Mechanical Engineer - ReadingOur client is seeking an excellent trainee Mechanical Engineer to join their team to develop their ultra-low propulsion satellites. This is an exciting opportunity to start your career with one of the best, the role will be incredibly rewarding whilst also challenging, this is not your regular 9-5 job and our client are...


  • Reading, UK, Berkshire, United Kingdom Oracle Full time

    Principal Software Developer EngineerLocation: Reading (hybrid) We are looking for a Principal Software Engineer or ML Engineer ready to tackle challenging problems at scale in production level Machine Learning applications, and to collaborate with other experienced software engineers, data scientists, and ML engineers.Oracle’s Software Assurance...


  • Reading, UK, Berkshire, United Kingdom IC Resources Full time

    Senior Mechanical Engineer – ReadingJoin our client’s mission to create the lowest orbiting satellites on Earth to rapidly advance global connectivity and insight. They are in their critical growth phase so the role will not come without its challenges, however the reward and exciting work is something to get excited by! The Senior Mechanical Engineers...


  • Reading, UK, Berkshire, United Kingdom Platform Recruitment Full time

    Mechanical Design EngineerTitle: Mechanical Design EngineerIndustry: Product DesignLocation: BerkshireSalary: Circa £45,000Skills: NPD, 3D CAD, Manufacturing, PrototypingRole Overview:Are you looking for an exciting new role in a fast paced consultancy environment?My client is a leading product design consultancy in Berkshire specialising in the design and...


  • Reading, UK, Berkshire, United Kingdom Humand Talent Full time

    Mechanical Design Engineer – Contract RoleLocation: Oxfordshire/BerkshireRate: £300-£500 per dayStart Date: ASAPAre you an experienced Mechanical Design Engineer ready for your next challenge? Join our client to work on innovative industrial automation systems in a dynamic tech environment.Role HighlightsDesign and develop automation machinery using...


  • Reading, UK, Berkshire, United Kingdom Thames Water Full time

    Are you a Senior Mechanical 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...

  • Mechanical Engineer

    4 days ago


    Reading, UK, Berkshire, United Kingdom Mansell Recruitment Group Full time

    My client who work within the Aerospace sector are looking for a Multi-skilled Engineer. The is a very exciting opportunity and a multifunctional role which is divided into 3 functions:1.Design (10%): Design is mainly desk based. It starts from receiving work requests from clients. It then goes on liaising with customers and gathering all the necessary...

  • Engineering Manager

    4 days ago


    Reading, UK, Berkshire, United Kingdom LMO Full time

    Engineering ManagerLMO is a company based in the UK and Luxembourg, developing Propulsion Systems, Rendezvous & Proximity Operations Payloads and Space Domain Awareness Payloads for Dual-Use applications.LMO is involved in the design, development, verification, build, test, and operation of its space-borne subsystems and collaborates with major research and...


  • Reading, UK, Berkshire, United Kingdom Aspen Technology Full time

    The driving force behind our success has always been the people of AspenTech. What drives us, is our aspiration, our desire and ambition to keep pushing the envelope, overcoming any hurdle, challenging the status quo to continually find a better way. You will experience these qualities of passion, pride and aspiration in many ways — from a rich set of...

  • Mechanical Engineer

    2 months ago


    Slough, UK, Berkshire, United Kingdom John Crane Full time

    About Us - Founded in 1917, John Crane is a global leader in the design, manufacturing, and engineering of mission critical flow control solutions for increased efficiency, emission reductions and energy transformation. Our products include mechanical seals and systems, couplings, bearings, filtration systems and predictive digital monitoring technologies....


  • Reading, UK, Berkshire, United Kingdom Project People Full time

    Principal Transmission IP Designer9-month contract Reading - Hybrid working - 2 days/week in officeRole falls inside IR35 The Transmission Design team is part of Operational Services and responsible for the delivery and maintenance of a series of design solutions, guidelines, and policies on behalf of our shareholders. These designs are delivered via...

  • Commissioning Engineer

    2 months ago


    Reading, UK, Berkshire, United Kingdom Premier Group Recruitment Full time

    ROLE – Commissioning Engineer (Mechanical)SALARY – Competitive, based on experience TYPE – PermanentLOCATION – West Berkshire (worldwide travel is required)My client designs and manufactures specialist equipment for process industries. They are looking for a Mechanical Commissioning Engineer to join their team based in West Berkshire on a permanent...

  • Project Engineer

    4 weeks ago


    Reading, UK, Berkshire, United Kingdom J3A Recruitment Full time

    Project Engineer (Mechanical Bias) - Reading - Thames Water Projects - Tier 1 Contractor - Car Allowance - 26 Days Holiday + Bank Hols - Life Assurance - Private Medical Cover - Pension Matched up to 8% - Further Benefits on OfferJ3A Recruitment are proud to be supporting an up and coming leader within the Water Industry. A Tier 1 Contractor who has already...

  • Security Cleared

    4 days ago


    Reading, UK, Berkshire, United Kingdom iO Associates - UKEU Full time

    Security Cleared - Mechanical and Electrical (M&E) Package PlannerReading - onsiteUp to £550 per dayOUTSIDE IR35 A well-respected Engineering company is urgently looking for a Security Cleared - Mechanical and Electrical (M&E) Package Planner to join their team. work under the supervision of the Head of Planning to support site ICS work packages to develop...


  • Reading, UK, Berkshire, United Kingdom Nicholas Associates Full time

    Job Title – Field Service Engineer – CHPSalary 43.5K Basic – no overtime for good work life balanceLocation – M4 Corridor, Reading, Bristol, BasingstokeBenefits – 25 days holiday, Company vehicle, Laptop, Mobile, Pension, Growing Renewable Energy Company.Nicholas Associates (Engineering and Technical) are recruiting for a Field Service Engineer for...


  • Reading, UK, Berkshire, United Kingdom Advanced Resource Managers Full time

    Contract Role – 12 months£30-45hr Inside IR35 Reading The Energy Division at ARM are currently recruiting an experienced Electrical Design Engineer to join a leading Nuclear Defence company based in Reading. Job Overview:Provide electrical / control and instrumentation designs for the Facility Design Authority (FDA) such that utilities, infrastructure,...

  • Flood Risk

    1 week ago


    Reading, UK, Berkshire, United Kingdom Strata Consulting Full time

    Flood Risk & Drainage Engineer/Senior Engineer – Detail Design/Flood Risk/DrainageCentral London£42,000 to £58,000 + packageJob descriptionJob Category: Water Team/InfrastructureJob SummaryOur award winning multi disciplinary design consultancy specialises in providing sustainable development infrastructure solutions from initial concept, through...

  • Compressor Engineer

    4 weeks ago


    Reading, UK, Berkshire, United Kingdom Cento Full time

    Air Compressor EngineerJoin an industry leading company as an Air Compressor Engineer and have the chance to work on cutting-edge systems with real progression opportunities and great benefits!Location: AldermastonSalary: £42,000 per annum + Onsite Allowances (total package £45k+)Overtime: Mon-Fri = flat rate. Sat/Sun/BHs = x1.5.Hours: Week 1: Monday to...

  • Maintenance Engineer

    4 weeks ago


    Reading, UK, Berkshire, United Kingdom MacGregor Black Full time

    Maintenance EngineerAre you an experienced Maintenance Engineer within a fast-paced environment?Do you want to be part of a proactive team striving for continuous improvement?Are you passionate about Engineering and with proven Electrical knowledge?MacGregor Black are partnering with a leading manufacturing business on the search for a Maintenance Engineer....

  • Mechanical Engineer

    2 months ago


    Slough, UK, Berkshire, United Kingdom John Crane Full time

    About Us - Founded in 1917, John Crane is a global leader in the design, manufacturing, and engineering of mission critical flow control solutions for increased efficiency, emission reductions and energy transformation. Our products include mechanical seals and systems, couplings, bearings, filtration systems and predictive digital monitoring technologies....