Senior Project Engineer

Step into a role where your engineering expertise shapes the future.

Join us as a Senior Project Engineer in Thames Water’s dynamic Capital Delivery team and play a key role in delivering high‑quality project design, safe and efficient delivery, and outstanding customer outcomes. Working alongside a Principal Engineer, you’ll help uphold the standards that keep our major infrastructure projects running smoothly — and your contribution will make a meaningful impact across the business.

What you’ll be doing as a Senior Project Engineer

Lead design engineering for Water Network Projects in line with project delivery procedures
Take a lead role in planning and delivering design activities
Work collaboratively with the team to meet time and cost targets
Act as the key contact for the CDM Designer or Principal Designer responsibilities
Apply strong risk management skills — identifying, mitigating, and controlling risks, and adding value during outline design
Provide technical assurance during the delivery, commissioning, and handover of assets
Manage multiple projects and oversee work delivered by external consultantsThis is a hybrid role based in Maple Lodge, with 2–3 days a week on site within London and the Thames Valley36 hours per week, Monday–Friday.

What you should bring to the role

Degree‑level education (or equivalent) in Civil or Mechanical engineering discipline, plus professional chartership
Strong experience in water network design and technical assurance
A commitment to continuous improvement and innovation
Excellent communication and interpersonal skills to work effectively with stakeholders
Experience managing project teams and taking accountability for delivery
Confidence using company IT systems and Office softwareWhat’s in it for you?

You’ll be part of a collaborative, supportive team at the heart of project delivery — taking schemes from initial design all the way through to construction and commissioning. You’ll work with a wide variety of people across Thames Water and our delivery partners, gaining exposure to complex engineering challenges and opportunities to shape meaningful environmental outcomes.
Competitive salary from £55,000 to £68,000 per annum depending on skills and experience
Annual Leave -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.
Performance-related pay plan directly linked to company performance measures and targetsFind out more about our benefits and perks (Please note different T&Cs apply if on secondment)

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 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.

Learn more about our purpose and values

Working at Thames Water

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 meaningful career opportunities, flexible working arrangements and excellent benefits.

If you’re looking for a sustainable and successful career where you can make a daily difference to millions of people’s lives while helping to protect the world of water for future generations, we’ll be here to support you every step of the way. Together, we can build a better future for our customers, our region, and our planet.

Real purpose, real support, real opportunities. Come and join the Thames Water family. Why choose us? Learn more.

We’re committed to being a great, diverse, and inclusive place to work. We welcome applications from everyone and want to ensure you feel supported throughout the recruitment process. If you need any adjustments, whether that’s extra time, accessible formats, or anything else just let us know, we’re here to help and support.

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 and meet colleagues.

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