Location
London – Mogden, Isleworth (TW7 7LH)

Hours
Monday to Friday, 36 hours per week

Salary
Up to £49,000 per annum, depending on skills and experience

About the Role
We are recruiting a Performance Manager to join our Mogden wastewater operations team. This is a critical front-line role within Waste Treatment, responsible for the day-to-day operations and long-term strategy of the site through effective leadership and resource management. You will lead your team by company policies, ensuring competence through coaching and training to maximise potential. Health and safety are central to this role, requiring you to implement and uphold safety standards across the site and team. You will identify, mitigate, resolve, and escalate risks, delivering a consistent approach to asset operation and maintenance to ensure a cost-efficient, robust, and safe 24/7 operation. Managing the budget effectively across health & safety, compliance, people, and performance is essential. You will drive a culture of continuous improvement and best practice to deliver a safe service to customers.

Benefits
- 26 days holiday per year, increasing to 30 with length of service (plus bank holidays)
- Generous pension scheme through AON with up to 12% employer contribution (2x employee contribution)
- Performance Related Pay Plan (PRPP) with up to 10% of salary
- Access to discounts, cashback, and instant vouchers through Benefits on Tap
- Generous paternity leave including 4 weeks paid and optional 2 weeks unpaid
- Enhanced maternity leave with 26 weeks full pay and 13 weeks half pay
- Ongoing performance development reviews and growth opportunities
- Wider benefits scheme supporting wellbeing and savings

About Thames Water
We are the UK’s largest water and wastewater company, serving over 16 million customers. We are committed to building a better future for our customers, communities, people, and the planet. Thames Water offers a unique, rewarding, and diverse workplace with fast-tracked career opportunities, flexible working arrangements, and excellent benefits. Join us to make a daily difference while protecting water resources for future generations. We are dedicated to being a great, diverse, and inclusive employer and provide support throughout the recruitment process to remove barriers to success.

Experience
- Proven management experience, ideally in process or operational management
- Previous experience within wastewater treatment or a similar environment is highly desirable
- Experience managing environmental compliance or permits is highly desirable
- Strong skills in environmental, engineering, finance, health & safety, and stakeholder engagement

About you
- Excellent people and performance management skills to lead a team with mixed skills and abilities
- Strong organisational and risk management capabilities
- Excellent interpersonal and communication skills, both written and verbal
- Strong computer skills are desirable
- A strong commitment to health and safety and customer-focused ethics

Qualifications
- Degree or equivalent qualification in Engineering, Science, or a related field
- Valid driving licence required to travel to different sites