Technical Assurance Engineer

Ready to make a real impact?

Join us as a Technical Assurance Engineer and help shape the future of essential infrastructure that millions of people rely on every day. In this role, you’ll bring your technical strengths, curiosity and problem‑solving mindset to projects that truly matter — projects that protect communities, enhance resilience and support a more sustainable tomorrow.

You’ll collaborate with talented designers, contractors, operators and internal teams, working together to unlock innovative solutions and ensure every phase of design, construction and commissioning stands up to the highest standards. Here, your voice is valued, your ideas have impact and your contribution helps create lasting, positive change.

We know that great engineers come from all backgrounds — and that not everyone feels confident applying unless they meet every single requirement. If this opportunity excites you, we encourage you to step forward. Your perspective, your potential and your passion can make a real difference, and we’re committed to supporting you every step of the way.

• Ensuring Thames Water provides all necessary health and safety information to the supply chain in accordance with CDM Regulations.
• Identifying compliance, health, safety and environmental risks across projects, working with teams to ensure they are fully addressed through the Solution and through Operations.
• Supporting the Asset Standard waiver process while promoting thoughtful, innovative challenges to existing approaches.
• Identifying and escalating any changes or risks that arise during design, construction, commissioning and handover phases that may impact performance or compliance.
• Collaborating closely with project managers and commercial teams to ensure projects are delivered on time, to the required quality and within budget.
• Leading on technical project queries — including compliance, environmental and regulatory matters — and liaising with relevant internal and external authorities.
• Ensuring contractors and consultants provide robust evidence demonstrating compliance with engineering, technical and construction standards.

This is a hybrid role based at Clearwater Court, Reading
, requiring a mix of office, site and home working depending on business and project needs.

• An engineering degree (or equivalent).
• Practical hands‑on experience gained after graduation, ideally within design or a related engineering discipline.
• A strong understanding of construction and/or operational environments.
• Solid technical capability in a relevant engineering field.
• Commercial awareness and a strong practical understanding of engineering contracts.
• A collaborative mindset, willingness to learn and confidence to contribute to multidisciplinary teams.

• 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).
• Contributory pension – Defined Contribution - Maximum of 12%
  -2x employee contribution.
• Personal Medical Assessments – Open to all once a year.
• Performance-related pay plan directly linked to company performance measures and targets.
• Wider benefits scheme, including our benefits hub, which is packed full of offers and information to save you money and support your well‑being.

Find out more about our benefits and perks (Please note different T&C apply if on secondment)

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

Thames Water is a unique, rewarding, and diverse place to work, where every day you can make a difference, yet no day is the…