Commercial Administrator

Job title Commercial Administrator  Division Asset Operations & Capital Delivery Location Hybrid - Clearwater Court - RG1 8DB
Contract type Permanent Full/Part-time Full-time Hours 36 hours per week, Monday-Friday Salary Offering up to £27,000 per annum, depending on experience and skills Job grade A Closing date 13/03/2026

As a Commercial Administrator within our Facilities Team, you will be part of a growing, supportive and inclusive team responsible for overseeing the suppliers who manage facilities services across Thames Water offices and depots. Working closely with Facilities Managers and Quantity Surveyors, you will provide commercial and administrative support, including the review and validation of supplier Applications for Payment, maintaining accurate commercial records, and supporting financial reporting and governance processes to ensure contract compliance and effective cost control.

This role offers hybrid home and office working based out of Clearwater Court in Reading, with potential progression into an Assistant Quantity Surveyor position.

• Reviewing and validating supplier Applications for Payment in line with contractual requirements.
• Raising purchase orders and processing invoices in accordance with internal governance procedures.
• Maintaining accurate commercial and contractual records, including trackers and cost reports
• Supporting budget monitoring, forecasting and monthly financial reporting.
• Liaising with facilities suppliers and internal stakeholders to resolve commercial queries.
• Assisting Facilities Managers and Quantity Surveyors with cost control and compliance activities.

Location – Hybrid Clearwater Court, Reading

Working 36 hours per week, Monday to Friday.

• Possess meticulous attention to detail & accuracy.
• Have strong numeracy skills.
• Have excellent communication skills with an ability to articulate key issues effectively.
• Have excellent IT skills, proficient in the use of Microsoft Excel and have the ability to pick up the use of multiple IT systems/software.
• Be able to work independently whilst delivering highly influential business tasks.
• Have excellent time management skills in the completion of key tasks within set deadlines.

• Offering up to £27,000 per annum, depending on experience and skills.
• 24 days holiday per year, increasing to 28 with the length of service. (Plus bank holidays)
• Generous Pension Scheme through AON.
• Performance-related pay plan directly linked to company performance measures and targets.
• 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)

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.

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.

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