The Models and Ratings team provide the Bank with analytical insight through the use of predictive models that support financial decision making across the business, from pricing through to risk.

Please note this position is based in our London office

The primary purpose of this role is to lead the development, maintenance, and execution of mortgage models while driving customer and account behavioural analysis. You will also oversee the creation and upkeep of predictive models for customer behaviour and deliver actionable insights on customer and account trends.

This position holds overall accountability for the mortgage modelling and analytics delivered to the business by the Financial Modelling and Analysis function.

Key Responsibilities:

• Developing and maintaining predictive models for customer behaviour related to account functionality and pricing, alongside conducting behavioural analysis
• Leading the full lifecycle of mortgage models, including pricing elasticity, churn, retention, and behavioural modelling
• Supporting the integration of models and analytical outputs into business processes and decision-making
• Identify and implement data sources, toolkits, analytical techniques, and modelling methodologies for mortgage modelling and analytics
• Delivering mortgage forecasting and scenario analysis to assist Treasury, and Finance with balance sheet planning through predictive insights
• Providing strategic recommendations on mortgage funding costs, market competitiveness, and customer behaviour to optimise product strategy using analytics and modelling
• Managing and developing a small team of analysts and modellers, embedding modern analytics tools and practices while fulfilling line management responsibilities
• Engaging senior stakeholders (Treasury, Finance, Risk, Product) by presenting clear, actionable insights in key committees and working groups
• Driving the adoption of models to improve efficiency and effectiveness across business processes, including collaboration with the Savings Product Team
• Overseeing regular reporting on model insights and assurance, including provision adequacy, scorecard decision effectiveness, and broader model monitoring as highlighted by Model or Credit Committees

We offer a base salary depending on experience of £80,000 - £90,000 and a competitive benefits package including:

• Discretionary annual bonus opportunity of up to 15%
• 28 days annual leave plus bank holidays
• Contributory pension (8% employer 5% employee)
• Life Assurance (4x salary) plus Group Income Protection
• Access to Private Medical Insurance and Medical Cash Plan

Please use this link to see the fantastic benefits available at OSB: OSB Careers 

At OSB Group, we understand how much our people bring to our organisation, which is why we try our best to give back too! Our Purpose is to help our customers, colleagues and communities prosper and we are on a transformation journey to become ‘the bank of the future’.

Our commitment to professional development, flexible working, and employee well-being fosters a dynamic and supportive workplace.

We are looking for talented individuals who have the experience and knowledge set out below:

• Previous experience:
  • In a Modelling and Analytics role within financial services;
  • Developing and implementing models to analyse deposit accounts and customer behaviour;
  • Providing insight and analysis to senior stakeholders;
  • Working with stakeholders and presenting at meetings/committees; and
  • Line managing direct reports

• Strong knowledge of how to build, test and validate models and the associated statistical techniques is essential

• A degree level qualification in a numerical discipline is essential

If this sounds like you, please apply now! For internal applications please visit the internal careers page to apply.

Still on the fence? Hear from our team or explore our process: OSB Careers

Shortlisted candidates will go through a personalised recruitment process, that is relevant and conversational – inclusive any individual reasonable support required. We want to bring out the best in you!

Diversity, Equity & Inclusion

Not sure if you meet the spec? Let us decide.

Research tells us that those from marginalised groups feel like they need to meet 100% of the criteria to apply. Here at OSB, we are committed to inclusivity and understand the value different experiences and perspectives can bring, so please don’t feel like you need to check every box to apply for a role internally.

We champion diversity at all levels, with Board-level Diversity Champions tracking our progress. We are proud to be signed up to the Women in Finance Charter to actively support the growth and development of senior women in our sector and are dedicated to treating all our employees and job applicants equally, opposed to discrimination on any grounds.