Circa £60k, salary depending on skills and experience. Full‑time, with the flexibility for part‑time Permanent Hybrid working: Peterborough with the expectation of 2‑3 days in the office.
What you’ll be doing
- Leading the development of major investment business cases, taking projects from initial concept through to approval and delivery.
- Turning complex technical, commercial and financial information into clear, compelling investment proposals for senior leaders and regulators.
- Working closely with programme teams, sponsors and consultants to shape investment strategies and secure funding for critical infrastructure projects.
- Defining and embedding measurable benefits, ensuring investments deliver long‑term value for customers, communities and the environment.
- Managing requirements and ensuring a clear link between business needs, project scope, costs, benefits and delivery outcomes.
- Supporting governance, assurance and regulatory submissions, ensuring business cases meet the highest quality standards.
- Leading and developing a Benefits & Requirements Analyst, helping build capability across the team.
- Contributing to future Price Reviews and helping shape the long‑term investment strategy for Anglian Water.
You’ll bring
- Experience developing business cases for large‑scale infrastructure projects or complex capital programmes.
- A strong understanding of HM Treasury Green Book guidance and the Five Case Model.
- Experience defining requirements and embedding measurable benefits into investment decisions.
- Excellent written communication skills, with the ability to create clear, persuasive narratives for senior leaders, boards and regulators.
- Strong stakeholder management skills, with the confidence to engage and influence across a wide range of teams and disciplines.
- The ability to translate complex technical, commercial and financial information into compelling business cases.
- A degree‑level qualification, or equivalent experience, in a relevant discipline such as economics, engineering, finance or project management.
It would be great if you also have
- Experience working within a regulated sector, such as water, energy or transport.
- Professional qualifications in project management, business analysis or investment appraisal.
- Experience supporting assurance reviews, regulatory submissions or governance gateways.
- Knowledge of benefits realisation and requirements management frameworks.
- Experience coaching, mentoring or developing others.
We invest in our people
- Personal private health care
- Generous double match pension - contribute 7% and Anglian Water will contribute 14%, giving a total contribution of 21%
- 24-hour Virtual GP service for you and your household
- 26 days annual leave - rising with length of service and the ability to buy more
- Life assurance (up to 8 x salary)
- Personal accident cover (up to 5 x salary)
- Excellent family friendly policies, such as 26 weeks full pay for maternity / adoption leave, as well as 4 weeks paid paternity / partner leave.
- Opportunity for shared parental pay
- Bonus scheme
- Flexible benefits and working culture to support your wellbeing and lifestyle.
Why apply
This is a unique opportunity to play a key role in shaping the future of major infrastructure investment at Anglian Water. As a Business Case Manager, you'll influence multi-million-pound investment decisions, helping to secure the funding and approvals needed to deliver projects that benefit customers, communities and the environment. Working at the heart of our Strategic Asset Management team, you'll collaborate with senior leaders, technical specialists and industry experts to turn complex challenges into compelling investment strategies. You'll have the chance to lead high-profile business cases, drive best practice across the organisation, and see your work directly influence some of the region's most important infrastructure programmes. If you're passionate about strategic thinking, solving complex problems and making a tangible impact, this role offers the opportunity to shape long-term investment decisions that will leave a lasting legacy for generations to come.
Closing date: 16th September 2026 #loveeverydrop #LI-ZP1
We are committed to reflect the diversity of the communities we serve in both our workforce and our supply chain partners to help us to understand and meet the needs of our customers. We are passionate and dedicated to the learning and development of our people, making sure they have the right skills and knowledge to be successful and to help achieve their potential. We want to give everyone equal access to our recruitment process. If you have a disability or long-term condition, including neurodiversity and mental health conditions, we’ll support you throughout your application, and make any adjustments to make sure your disability or long‑term condition is not a barrier to recruitment. If you need any support, please get reach out to our team resourcing@anglianwater.co.uk’
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Major Projects Business Case Manager Peterborough, Cambridgeshire Posted 1 day ago employer: Anglian Water Group Ltd.
Anglian Water is an exceptional employer, offering a dynamic work environment where you can make a real impact on the lives of millions by ensuring the delivery of safe, clean drinking water. With a strong commitment to employee wellbeing, generous benefits including a double match pension scheme and extensive family-friendly policies, we foster a culture of inclusivity and continuous professional development. Join us in Rutland or surrounding areas, where your leadership will inspire a dedicated team and contribute to our mission of operational excellence and environmental responsibility.
