Credit Model Validation Manager (Machine Learning & NPV Models)

• Join Monzo's second line of defence Credit Model Validation team, providing independent oversight and challenge to model development teams to help Monzo grow safely. • Focus on models used for customer-level decisioning and credit strategies — underwriting scorecards, origination PD models, and NPV/unit economics models across all lending products. • Lead hands-on independent validation of machine learning, decision science, and NPV models, ensuring they are fit for purpose, governed, explainable, and performing as expected. • Work remotely from anywhere in the UK or from Monzo's London office, with flexible working hours.

• Have a strong background and practical experience in credit model development and/or validation, particularly with machine learning or statistical models used in credit decisioning such as decision science scorecards, origination/underwriting PD models, and NPV/unit economics modelling. • Be data-driven with strong analytical skills and deep understanding of statistical techniques for credit and model risk — strong SQL and Python skills are essential. • Understand how models are used in real-time decisioning and lending strategies, and how to balance commercial and risk outcomes. • Have strong written and verbal communication skills, able to articulate problems and solutions using clear and simple language, particularly breaking down complex issues for non-experts. • Have a track record of building and maintaining trusting relationships with stakeholders at all levels, providing effective and respectful challenge. • Be impact-driven and proactive in identifying issues and opportunities to improve outcomes for customers and the business. • Be passionate about technology and excited by what Monzo is doing.

• Have in-depth knowledge of credit decisioning models specifically. • Bring experience with data visualisation tools such as Tableau, Looker, or similar. • Have experience improving Model Risk Frameworks including policies, standards, and procedures. • Bring experience developing challenger models to test model assumptions and strengthen validation conclusions. • Have experience leading the adoption of AI tools to enhance model validation approaches. • Bring familiarity with Monzo's technology stack including GCP, BigQuery, dbt, and Go.

• Lead hands-on independent validation of models used for credit decisioning within Borrowing strategies, covering machine learning, decision science, and NPV models. • Support oversight and validation of broader credit risk models including IFRS 9, stress testing, and economic response models. • Develop deep understanding of Monzo's credit models and provide impactful input and challenge to model developers to improve modelling capabilities. • Review ongoing model performance monitoring to ensure lending models perform within risk thresholds, providing support to first line of defence teams when action is required. • Perform statistical analyses to independently assess model performance, including developing challenger models where appropriate. • Improve the Model Risk Framework including overseeing policies, standards, and procedures to embed best practice and follow up-to-date regulatory guidelines. • Write clear and impactful model validation reports and present findings and actions in relevant committees. • Partner with first line of defence credit strategy and modelling teams and wider risk teams to embed the model risk framework and establish consistent validation standards. • Embrace new and innovative technology, including leading the adoption of AI tools to enhance the model validation approach.

We have been Monzo customers for years and have always loved their beautiful, simple app UI. We believe their product has a positive impact on millions of customers, motivating them to be more conservative with their spending and helping them save money. Monzo, as a company, has consistently grown over the past 10 years and is known for its strong company culture, generous benefits, and leadership that strives to be truly transparent and cares about its colleagues. It is a company that helps you advance your career and grow as a professional, working with great teams. If you like to join a thriving, upcoming bank and help millions of customers lead a financially sound life, Monzo gives you the opportunity to push ahead.

• Earn £79,000–£93,000 plus incentive awards tied to performance. • Work remotely from anywhere in the UK or from Monzo's London office. • Work flexible hours that suit you and your team. • Access a £1,000 annual learning budget for books, training courses, and conferences. • Receive a full work-from-home setup including a MacBook, with extra support for fully remote workers.

Monzo is on a mission to make money work for everyone. Starting as a prepaid card, the product offering has grown over 10 years in the UK to include personal and business bank accounts, joint accounts, accounts for 16–17 year olds, free kids accounts, credit cards, savings, investments, and pension combining. The Borrowing business is growing rapidly, and the Credit Model Validation team provides independent oversight across Monzo's suite of credit models covering critical business disciplines such as credit strategy and impairment.