Location
Central London and Sussex, predominantly field-based with work scheduled around operational requirements and client targets.

Hours
Varied hours including occasional night work, with the need to work outdoors in all weather conditions.

Salary
Negotiable

About the Role
Tetra Tech is seeking an experienced Leakage Technician to support the South East Water contract across Sussex. You will investigate clean water networks to identify leakage and unaccounted-for consumption, helping the client achieve key performance targets. Working alongside maintenance and field delivery teams, you will carry out network investigations, pinpoint leaks on public and private land, complete step testing and Pressure Zero Testing, and record findings through data collection applications. This role offers hands-on experience across a varied water network and the opportunity to contribute to essential infrastructure projects.

Your impact in this position includes applying your technical expertise to improve leakage detection, data quality, and repair outcomes. Over time, you will strengthen your capability across network investigation, asset surveying, and water efficiency, while building trusted relationships with clients and operational teams. Your development will be supported through training, a personal development plan, and a transparent career pathway within Tetra Tech’s global consulting and engineering network.

Tetra Tech is a leading provider of consulting and engineering services working across the full project lifecycle worldwide. We offer a collaborative environment that supports individual performance, innovation, and creativity. Our UK, Ireland, and Netherlands operations include more than 6,000 employees who are Leading with Science® to solve complex client problems. We are committed to equality and will make reasonable adjustments to support candidates and employees requiring additional arrangements during recruitment or in the workplace.

Experience
At least two years’ relevant water network experience with demonstrable experience investigating water networks and identifying leakage and unaccounted-for consumption. Experience in a comparable leakage role is required.

About you
Competent IT skills with the ability to collect accurate data and produce clear reports. Ability to work effectively with maintenance teams and clients. Full UK driving licence and willingness to work across Sussex in varying weather conditions, including occasional night work. Physical capability to lift inspection covers. Reliable and safety conscious. Drug and alcohol testing applies to this role.

Qualifications
A full UK driving licence is essential. EUSR Water Hygiene, EUSR DOMS, and NRSWA Unit 2 accreditation are desirable. Further training and development will be supported by Tetra Tech.