What you will be doing
as Senior Internal Auditor
1. Lead and deliver impactful audits across compliance, financial, operational, programme, and technology areas—driving high-quality outcomes from planning through to final reporting. Collaborate with stakeholders at all levels, including Directors, to ensure findings are clear, risk-aligned, and actionable.
2. Ensure audit findings are robust and meaningful, with risks clearly assessed and remediation timelines agreed with business owners. Maintain high standards of audit quality in line with internal policies and professional guidelines.
3. Build strong relationships across the business, working closely with auditees and stakeholders to support action closure, share insights, and promote a culture of continuous improvement.
4. Identify opportunities to enhance processes and controls, ensuring audits deliver real value and support cost-effective, efficient operations.
5. Support the Audit Manager in developing audit methodologies, tools, and reporting frameworks that strengthen the team’s effectiveness and consistency.
6. Provide expert advice and business insight, contributing to a high-performing audit function and offering practical solutions to risk and control challenges.
7. Collaborate across the Risk, Audit and Assurance team, helping to raise the profile of internal audit and drive improvements in risk management and governance.
8. Offer ad hoc support on risk and control matters, acting as a trusted advisor to the business when needed.
9. Stay ahead of industry best practices, bringing fresh thinking and innovative tools to enhance audit delivery and team performance.
What you should bring to the role
10. A relevant professional qualification (e.g. ACA, ACCA, CIMA, CMIIA, CIA)
11. Extensive experience of internal audit
12. Proven track record of delivering end-to-end audits, preferably including large infrastructure or asset-based projects
13. Strong stakeholder engagement skills, with experience reporting to senior management
14. Analytical mindset with the ability to challenge and improve existing processes
15. Confident communicator with the ability to influence without formal authority
16. Objective, detail-oriented, and committed to delivering high-quality work
Location– Hybrid, flexible working, Reading.
What’s in it for you?
An opportunity to join a company that offers its employees a rewarding career path, allowing individuals to reach their full potential. This is an exciting time to join Thames Water as we continue to deliver our innovative turnaround plan.
17. Competitive salary of £55,000 - £70,000 per annum, depending on experience.
18. Annual Leave - 26 days holiday per year, increasing to 30 with the length of service. (Plus bank holidays)
19. Contributory pension – Defined Contribution - Maximum of 12% -2x employee contribution.
20. Personal Medical Assessments – Open to all once a year.
21. Performance-related pay plan directly linked to company performance measures and targets
22. Access to lots of benefits to help you take care of your and your family’s health and well-being, and your finances – from annual health MOTs and access to physiotherapy and counselling, to Cycle to Work schemes, shopping vouchers and life assurance.