Engineer

We’re looking for Project Engineers to join our London Infrastructure team.

Help us transform and modernise London’s wastewater networks. As a Project Engineer, you’ll play a vital role in protecting homes from sewer flooding, reducing river spills, and upgrading the essential infrastructure that keeps the capital moving.
You’ll work on a diverse portfolio — gravity sewers, rising mains, pumping stations, trunk sewer inspections, pollution reduction schemes, and the protection of assets crossing railways and bridges. Every day brings a new challenge and the chance to make a real impact on London’s environment and communities.

What you’ll be doing

• Working alongside senior engineers, consultants, and contractors to progress multiple wastewater network projects from early solution optioneering and concept design through to contract award.
• Developing contractual project briefs and coordinating pre‑construction information.
• Identifying, analysing, and mitigating project risks, while exploring opportunities that strengthen scope and pricing.
• Reviewing surveys, drawings, and contractor proposals, highlighting issues to senior and lead engineers.
• Assuring detailed designs delivered by contractors and managing any design changes during construction.
• Supporting project teams through commissioning and asset handover.
• Carrying out design reviews to ensure safe, robust, and operationally sound engineering solutions.
• Working closely with senior engineers to act as key contact for CDM Designer or Principal Designer roles at early design stages, ensuring Thames Water meets its responsibilities as the client.
• Promoting and upholding our zero‑compromise approach to health and safety across all project activities.

Location & Working Hours

• Hybrid – Based at Maple Lodge Sewage Treatment Works with office and site visits required 2–3 times per week.
• 36 hours per week.

We’re looking for you to:

• Have an engineering background and hold an engineering qualification or degree.
• Be Incorporated or working towards Incorporated status with a relevant professional body.
• Have experience coordinating multiple stakeholders — internal teams, site staff, and external contractors.
• Bring experience with Highways, Local Councils, or Network Rail (advantageous but not essential).
• Understand wastewater infrastructure projects, including design and rehabilitation in urban or environmentally sensitive areas.
• Have experience in process‑industry project delivery (advantageous but not essential).
• Understand industrial processes relevant to your engineering discipline.
• Have solid knowledge of Health & Safety in construction, especially CDM Regulations 2015.
• Hold a full, clean driving licence and be able to travel to various sites for design reviews, contractor meetings, and safety audits.

What’s in it for you?

You’ll join a team at the heart of our delivery process — taking projects from initial design right through to construction and commissioning. You’ll collaborate with a wide range of people across Thames Water and our supply chain, gain hands‑on experience, and play a meaningful role in safeguarding London’s wastewater network for future generations.

• Competitive salary from £41,000 - £55,000 per annum, depending on skills and experience.
• 26 days holiday per year, increasing to 30 with the length of service. (plus, bank holidays)
• Performance-related pay plan directly linked to company performance measures and targets.
• Generous Pension Scheme through AON.
• Access to lots of 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.

Find out more about our benefits and perks

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.