Project Business Case Assurance Manager

Job title: Project Business Case Assurance Manager - 4271

Salary: From £80k

Grade: Pay Band 4

Contract type: TfL     Reference: 4271

Team: Project Assurance     Directorate: General Counsel

Contract details: Permanent     Location: Southwark / Hybrid

Application closing date: Wednesday 3rd June 2026 at 23:59

All offers of employment are subject to satisfactory right‑to‑work checks.  Candidates must be able to demonstrate their right to work in the UK.  At the present time TfL is unable to offer visa sponsorship for this role.  

Hybrid working within this role enables a balance of 50 per cent of time split between the office and home over a 4-week period. Hybrid working arrangements can evolve subject to business requirements.

About the role

Transport for London is responsible for some of the most complex and high‑profile infrastructure investments in the UK. TfL’s Project Assurance team operates as a “Critical Friend” providing second line assurance across TfL’s Capital Investment Programme. As a Project Business Case Assurance Manager working in the Project Assurance team you will play a critical role in safeguarding London’s investment decisions. This is a pivotal role ensuring that TfL’s project‑based investments deliver genuine value for money, withstand scrutiny, and support the long‑term success of London’s transport network.

Working at the interface of finance, strategy and delivery, you’ll act as an independent, expert voice - challenging assumptions, strengthening business cases, and giving confidence that spending of public funds provides value for money.

What you’ll be doing:

Working as part of the second line assurance function you will provide expert investment assurance across TfL’s Capital Investment Programme by:

• Applying your investment appraisal expertise to ensure project teams are constructively challenged during assurance reviews. You will guide and undertake investigative analysis, to inform decision-makers in line with HM Treasury guidance and good industry practice.
• Determining appropriate lines of inquiry aligned to key investment decisions, you will ensure that costs, risks, benefits and value‑for‑money performance is appropriately understood, so that priorities can be validated, and evidence‑based recommendations for change (including project cancellation) can be robustly made.
• Critically assessing the preferred scope and delivery approaches of our largest and most complex or risky initiatives and providing independent recommendations and advice. Identifying strategic trends and risks across TfL’s investment portfolios you will advise the Mayor’s Independent Investment Programme Advisory Group and relevant TfL Committees and governance forums on your findings, their significance, and what potential responses might be.
• Working collaboratively with other assurance colleagues and subject matter experts across the business to comprehensively understand the impacts of emergent issues on all dimensions of the business case, value for money position, and justification to proceed.
• Working closely with first line assurance  business case specialists in TfL to define and promote best practice principles, advocating for rigorous and proportionate HM Treasury five-case and industry best practice thinking whilst flexibly adapting to changes in project / programme management methodology and delivery models.
• Maintaining a detailed understanding of legislative, policy and appraisal best practice developments. You will drive cultural changes to continually improve the evidence base that informs TfL’s investment decisions.

What we’re looking for

You’ll bring strong analytical judgement, credibility and confidence to challenge at senior levels, alongside:

All of the below are essential unless stated otherwise:

Knowledge:

• Fluency in the HM Treasury five-case business case framework, how it evolves through the programme and project lifecycle, and its role in informing decision making.
• Comprehensive knowledge of business planning, programme and project delivery, benefits management, risk and commercial management. Strong understanding of assurance approaches, including risk‑based assurance.
• Authoritative expertise in demand forecasting, cost‑benefit analysis and benefits realisation management
• Degree‑level education or equivalent professional experience in a quantitative or analytical discipline.
• A professional qualification in Programme or Project Management, Management of Benefits, Social Return on Investment, or equivalent professional experience.
• Desirable: Strategic understanding of the role and key features of a multi-modal transport network within a major metropolitan context.

Skills:

• Ability to proportionately analyse complex business cases, identifying gaps in logic, weak evidence and calculation errors.
• Strong critical‑thinking and judgement skills across a broad range of investment contexts.
• Excellent verbal communication and influencing skills, able to challenge robustly while maintaining strong stakeholder relationships.
• High‑quality written skills, producing clear, authoritative, impactful assessments.
• Proven ability to operate as a trusted advisor to senior stakeholders.

Experience:

• Experience across major HM Treasury five-case investment appraisals within dynamic stakeholder environments.
• A proven record in the production of complex investment documentation such as strategic business cases, benefits analysis and Transport & Works Act Order applications
• Experience using relevant analytical tools and using the outputs to inform critical thinking and decision making.
• Desirable: Planning responsibility for a large‑scale urban regeneration project.

Application Process

• Please apply using a covering letter (2 pages max) and CV (2 pages max).
• Think carefully about the skills, knowledge and experience in the advert and cover this in your CV
• PDF format preferred and do not include any photographs or images

Closing date for applications: Wednesday 3rd June 2026 at 23:59

Equality, diversity and inclusion

We are committed to equality, diversity and inclusion. We want to represent the city we serve, which will help us become a more innovative and efficient organisation. Our goal is to make our recruitment as inclusive as possible. We are a disability confident employer who guarantee an interview to any disabled candidate who meets all of the essential criteria. We also use anonymising software that removes identifying information from CVs and cover letters to make the process fair.

Benefits

In return for your commitment and expertise, you will enjoy excellent benefits and scope to grow. Rewards vary according to the level of role but mostly include the below:

• Final salary pension scheme
• Free travel for you on the TfL network
• Reimbursement of 75% of the cost of a standard class Ticket for National Rail travel from home
• 30 days annual leave plus public and bank holidays
• TfL is committed to work-life balance, operating a hybrid working approach where business and role requirements allow
• Private healthcare discounted scheme (optional)
• Tax-efficient cycle-to-work programme
• Retail, health, leisure and travel offers
• Discounted Eurostar travel

Vetting Process

At Transport for London, safety, trust and fairness sit at the heart of how we recruit. Our Vetting Charter (https://tfl.gov.uk/corporate/careers/our-vetting-process) explains the checks we carry out before you join us, helping ensure we create a safe, inclusive and reliable network for everyone who depends on our services. We simply ask that the information you provide is honest and accurate so we can progress your application smoothly. If something doesn’t match or can’t be verified, we may not be able to move forward with your application, but we’ll always treat you with transparency, respect, and clear communication throughout.