Project Engineer, Mechanical Engineer

Didcot - OX11 7AW
, Newbury - RG19 3TL
, Oxford - OX4 4XU
, Reading - Clearwater Court - RG1 8DB
, Reading STW - RG2 0RP
, Slough - SL1 9EB
, Swindon - SN2 2DJ

Job title Project Engineer  Division Asset Operations & Capital Delivery Location Didcot - OX11 7AW
, Newbury - RG19 3TL
, Oxford - OX4 4XU
, Reading - Clearwater Court - RG1 8DB
, Reading STW - RG2 0RP
, Slough - SL1 9EB
, Swindon - SN2 2DJ
Contract type Permanent Full/Part-time Full-time Hours Monday to Friday, 36 hours per week. Salary Offering a salary up to £56,000 per annum, depending on skills and experience. Plus a Car Allowance of £4,500 per annum. Job grade B Closing date 02/03/2026

Our Project Engineers manage all aspects of their projects, including initial scoping of the need, competitively tendering the work, contractor procurement, site set up and inductions, and health and safety inspections, through to commissioning, training and handover to the operations teams.

As a Project Engineer, you’ll be at the heart of delivering essential Mechanical, Electrical and ICA projects across the Thames Valley area. Your work will directly improve the performance, safety and efficiency of our sites.

You will be:

• Managing and delivering a varied portfolio of projects
  , typically valued between £40,000 and £400,000
  , ensuring each one is delivered safely, on time and to a high standard.
• Taking responsibility for up to 15 live projects at once
  , while progressing others through scoping, design and tendering.
• Developing innovative and modern solutions to operational challenges, helping us improve site efficiency and deliver real value to our customers.
• Collaborating with operations teams and contractors to scope, define and cost effective, low‑risk solutions — working closely with the Controller of Premises at each location.
• Championing our zero‑compromise approach to health and safety
  , ensuring every contractor meets our standards and every project is delivered safely.

Working at a location based within the Thames Valley area, including Swindon, Didcot, Oxford, Newbury, Reading and Slough.

We’re looking for someone who’s passionate about engineering and confident managing multiple projects in a busy, operational environment.

You should bring:

• A background in Mechanical, Electrical/ICA or Civil Engineering
  .
• Formal engineering qualifications — strongly encouraged.
• Strong coordination and communication skills
  , with the ability to engage internal colleagues, site teams and external contractors.
• A proactive, self‑motivated approach, with the ability to work independently and deliver high‑quality results.
• A solid understanding of Health & Safety standards
  , particularly construction-related requirements and CDM.
• Industry experience (highly advantageous, but not essential).

• Offering a salary up to £56,000 per annum, depending on skills and experience.
• Plus, a Car Allowance of £4,500 per annum.
• 26 days holiday per year, increasing to 30 with the length of service. (plus, bank holidays).
• Contributory pension – Defined Contribution - Maximum of 12%
  -2x employee contribution.
• 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.

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 passionate and skilled people, committed to making a difference and getting us to where we want to be in the years and decades to come.

Thames Water is a unique, rewarding, and diverse place to work, where every day you can make a difference, yet no day is the same. As part of our family, you’ll enjoy fast‑tracked career opportunities, flexible working arrangements and excellent…