Are you ready to help shape the future of water services for generations to come? Thames Water is looking for a Senior Mains Design Engineer to join our Developer Services department, playing a key role in supporting regional growth and enabling new customers to access life’s essential service.
Our Developer Services team manages everything from connecting water supplies for new developments to adopting and building over existing sewers. Within this, the Mains Design team designs over 100,000km of new mains each year, working closely with household customers, small builders, major developers, Self-Lay Providers (SLPs), and New Appointment and Variation companies (NAVs).
What you will be doing as the Senior Mains Design Engineer; you’ll be part of a multi-disciplinary team delivering projects across a diverse and ever-changing portfolio. From initial concept to final delivery, you’ll support the entire lifecycle, producing cost-effective, safe, and robust engineering designs and quotations that meet customer needs while safeguarding the long-term performance of our network.
You’ll also be a key point of contact for customers, ensuring they receive a first-class service from pre-planning through to connection and beyond. This includes maintaining strong relationships with both internal teams and external stakeholders to keep projects running smoothly every step of the way.

Key areas of accountability will include:

• Prepare designs and quotations for water mains, diversions, abandonments, and new connections, including the application of infrastructure charges. This will extend to Self-Lay and Inset/NAV schemes.
• Liaise with and build strong relationships with other parts of the business regarding delivery of new infrastructure and new connections.
• Ensure you are always protecting Thames Water’s assets.
• Ensure compliance with the relevant Health and Safety Legislation.
• Prepare and issue work packages to the Project Manager/Field team
• Help progress projects through to delivery ensuring that asset protection and CDM requirements along with Permit to Work procedures have been followed correctly.
• Provide high quality customer service by building excellent relationships through prompt and professional response to customer contacts via different media whilst proactively keeping customers informed of progress.

Base location: Hybrid - Clearwater Court - RG1 8DB
Hours: 36 hours per week Monday to Friday

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 fast-tracked career opportunities, flexible working arrangements and excellent benefits.
Whether you’re interested in a role in one of our call centres or science labs, we’re looking for people like you with real passion and a burning desire to make things better.
So, 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.
Our overarching aim is to ensure that Thames Water is great, diverse, and inclusive place to work. We welcome applications from everyone and offer extra support for those who need it throughout the recruitment process. Our aim is to remove any real or perceived barriers to success, so if you need assistance, 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.

WHAT YOU SHOULD BRING TO THE ROLE:

• Educated to a degree level (or equivalent) in an engineering or other relevant STEM discipline.
• Knowledge/experience of water/utility network operational processes and design desirable but not essential.
• Experience using CAD software.
• Outstanding customer service and the ability to be flexible and positive to ever changing customer and business needs.
• Knowledge of HSE and CDM regulations
• Ability to build and maintain effective relationships.
• Learn quickly and build knowledge of company systems, processes and policies.
• Attention to detail is vital as you will be responsible for ensuring that all work is correct and compliant.
• IT literate and comfortable with the MS Office suite.

Key areas of accountability will include:

• Prepare designs and quotations for water mains, diversions, abandonments, and new connections, including the application of infrastructure charges. This will extend to Self-Lay and Inset/NAV schemes.
• Liaise with and build strong relationships with other parts of the business regarding delivery of new infrastructure and new connections.
• Ensure you are always protecting Thames Water’s assets.
• Ensure compliance with the relevant Health and Safety Legislation.
• Prepare and issue work packages to the Project Manager/Field team
• Help progress projects through to delivery ensuring that asset protection and CDM requirements along with Permit to Work procedures have been followed correctly.
• Provide high quality customer service by building excellent relationships through prompt and professional response to customer contacts via different media whilst proactively keeping customers informed of progress