Full time

Senior Technician - Waste Water Treatment

Pertemps Thames Water
Esher, Surrey, KT10 8PB
money-bag From £35,000 per annum depending on skills and experiences
Posted: 24 August 2026 (Today)
Closing date: 23 September 2026
Ref: 60729794

As a senior member of the team, you will conduct a full range of monitoring, maintenance, operations and repair work across three sites on the wastewater treatment assets. This will include routine operational maintenance and cleaning tasks; maintaining a variety of records and reports related to wastewater system operations and operate computers for process control; and monitoring the SCADA system.
You will optimise processes to maximise efficiency and compliance. Taking the initiative to resolve process failures and manage asset maintenance and faults: directly or via escalation.
As a senior member of the team, you will also be expected to support and develop other team members.
What you’ll be doing as a Senior Technician – Waste Water Treatment

  • Take responsibility for three operating sites in line with environmental permits to protect the environment; general maintenance of equipment and site, taking effluent samples to monitor and improve biological performance.
  • Undertaking both reactive and planned maintenance, responding to alarms and fault finding to identify issues, fix these or escalate, planned maintenance of plant and equipment daily.
  • Record work and asset information to improve business performance, along with identifying possible future risks and recommending changes in the course of your day-to-day work, and to raise these for resolution as required.
  • To make sure the health, safety and wellbeing of myself, colleagues, contractors, and visitors is always my top priority by displaying the correct behaviours at all times.
  • To deliver an excellent customer experience and positively contribute to overall customer satisfaction.
  • Interacting with all of our customers (internal & external) in a timely, professional, efficient, respectful and polite manner.
  • Working collaboratively with business units/departments across the business to identify improvement opportunities, providing constructive feedback with evidenced examples, with suggestions for improvement.
Base location – Esher Sewage Treatment Works, with hybrid working at two other sites, Leatherhead and Weybridge.
Working hours – 36 hours Monday to Friday, with a 6-weekly on-call rota.
Salary – From £35,000 depending on skills and experience + additional payments for the 6-weekly on-call rota.
Van – You will be provided with a company van.
What you should bring to the role
To thrive in this role, the essential criteria you’ll need are:
  • Team player who can work in many different teams, showing respect for others, providing helpful feedback and supporting the development of others.
  • Experience of water compliance, testing and consents.
  • Builds and always maintains effective internal and external relationships to a high standard – acts as a role model.
  • Ability to influence and drive the right culture and behaviours.
  • A positive approach to handling changes, embracing all nature of change including technology, process, behavioural and organisational change.
  • IT literate.
  • Full UK driving licence
Additional skills and experiences would be great to have/bring:
  • Experience of delivering against challenging upper quartile business targets and performance commitments.
  • Team leadership experience would be great to have.
  • Previous experience in the water industry
  • Demonstrate excellent customer service both internally and externally.
  • Excellent communication skills.
What’s in it for you?
  • Competitive salary from £35,000 per annum depending on skills and experience + additional payments for the 6-weekly on-call rota.
  • 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.
  • Company van provided.
  • Access to lots of benefits to help you take care of you and your family’s health and wellbeing, 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 (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.

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