Senior Finance Business Partner

Location: Greater London

Location London (SE1 9HA
), Durham (DH1 1SL
), Lytham (FY8 4TS
) or Glasgow (G2 8JX
). In late summer 2026 our Lytham office will be moving to Preston (PR4 1TE
). We are currently working in a hybrid way with colleagues expected to work at their chosen office location for 40% of their working month.

About the jobJob summaryNS&I is one of the largest savings organisations in the UK with more than 24 million customers and over £240 billion invested. We are both a government department and an Executive Agency of the Chancellor of the Exchequer. Our origins can be traced back more than 150 years to 1861.A small company with a big reach, we offer a range of benefits including flexible working, a 9-day fortnight scheme, a performance-related variable pay bonus, a generous pension scheme and great opportunities for development.

We care for colleagues, respect one another, invest in our people and manage talent effectively.

Job description NS&I is undergoing a complex Business Transformation Programme (BTP) the role of Senior Finance Business partner is key to ensuring a strong financial management culture within the programme.

The post holder will be responsible for advising the BTP Senior Responsible Officer and Programme Director on the current and future BTP financial position, its underpinning forecast assumptions and associated financial risks and opportunities. They will scrutinise and challenge financial forecasts through analysis of assumptions, historic data and risks and opportunities and provide insightful commentary to explain variances from budget and prior month’s forecasts.

This role will be the finance first point of contact for Programme finance queries, and will work alongside the Programme Accountant, Commercial Finance team and PMO Forecasting Lead to ensure robust financial and cost controls are in place and a consistent forecasting approach taken.

Please see role profile for full details.

Person specification

Essential Experience

Experience of programme financial forecasting and reporting

Evidence of providing financial support to organisations undergoing complex change

Development of financial reporting, including interpretation of data to highlight trends and anomalies

Experience of advising, and working with, a wide range of stakeholders, including senior management, to ensure Departmental outcomes are met Essential Qualifications Fully Qualified CCAB/CIMAEssential SkillsA strong communicator who utilises a range of communication styles to convey complex and challenging information to stakeholders.

Demonstration of building effective relationships and networks across functional boundaries internal and externally to ensure effective and efficient delivery of agreed, priority outcomes.

Ability to respond proactively and positively to rapidly changing priorities and urgent requirements, leading change within their own team.

Ability to influence senior stakeholders and position the impact of financial risks and opportunities to governance bodies

Essential Technical Skills Advanced Excel skills

Familiarity with data analytics tools

Qualifications

Please confirm that you hold a Fully Qualified CCAB/CIMABehaviours

We'll assess you against these behaviours during the selection process:

Communicating and Influencing Delivering at Pace Working Together Seeing the Big Picture We only ask for evidence of these behaviours on your application form:

Communicating and Influencing Delivering at Pace Benefits Alongside  your salary of £54,000, National Savings and Investments contributes £15,643 towards you being a member of the Civil Service Defined Benefit Pension scheme. [1] Find out what benefits a Civil Service Pension provides (opens in a new window).Some benefits of working at NS&I include:

Learning and development tailored to your role

An environment with flexible working options9-day fortnight schemeA culture encouraging inclusion and diversityA [2] Civil Service pension with an employer contribution of 28.97%
Generous annual leave - starting at 25 days, increasing to 30 days Performance-related variable pay bonus

Enhanced maternity, paternity, adoption and shared parental leave

Things you need to know…