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Lead hands‑on independent validation of credit decisioning models—including machine‑learning, scorecards, PD and NPV models—ensuring they are fit for purpose, governed, explainable and performing as expected.
A candidate with strong credit risk modelling experience, solid Python and SQL skills, and proven work validating or developing machine‑learning/statistical models in a financial‑services setting.
The role safeguards Monzo’s rapidly growing lending portfolio by providing critical oversight, improving model risk frameworks, and ensuring models deliver safe, customer‑centric outcomes.
🚀 We’re on a mission to make money work for everyone.
We’re waving goodbye to the complicated and confusing ways of traditional banking.
After starting as a prepaid card, our product offering has grown a lot in the last 10 years in the UK. As well as personal and business bank accounts, we offer joint accounts, accounts for 16-17 year olds, a free kids account and credit cards in the UK, with more exciting things to come beyond. Our UK customers can also save, invest and combine their pensions with us.
With our hot coral cards and get-paid-early feature, combined with financial education on social media and our award winning customer service, we have a long history of creating magical moments for our customers!
We’re not about selling products - we want to solve problems and change lives through Monzo ❤️
📍London or Remote (UK) | 💰 £79,000 - £93,000 + Incentive Awards tied to your performance + Benefits
Our Borrowing (lending) business is growing rapidly across both existing products and with the planned launch of new initiatives. As our lending portfolio grows, our second line of defence Credit Model Validation team is growing with it - and we’re looking for a Credit Model Validation Manager to join us!
Our Credit Model Validation team is crucial in providing independent oversight and challenge to our model development teams in the first line of defence to help Monzo grow safely and ensure that the models we use deliver good outcomes for our customers. We’re looking for someone (maybe you?!) to join our validation squad and provide expert independent validation and oversight across our suite of credit models, covering critical business disciplines such as credit strategy and impairment.
You’ll have a particular focus on models used for customer-level decisioning and defining our credit strategies - such as underwriting scorecards, origination PD models and Net Present Value (NPV) / unit economics models - across all our lending products.
Strong data and analytical skills are a must, as is deep expertise in credit risk modelling. You’ll have hands-on experience in either model validation or model development within a financial services environment, including practical experience using Python to develop, validate or analyse machine learning and statistical models. . In-depth knowledge of credit decisioning models would be a strong plus.
🔑 You’ll play a key role by…
🤩 We’d love to hear from you if…
Our technology stack
We rely heavily on the following tools and technologies (note we do not expect applicants to have prior experience of all them):
Our interview process usually involves up to four main stages via Google Hangouts:
🙌 What’s in it for you
We have some guidelines on using Artificial Intelligence (AI) to ace an application and interview at Monzo. You can read them here.
We’ll close this role once we have enough applications for the next stage, so please apply as soon as you can - we don’t want you to miss out!
LinkedIn Tags: #LI-TK1
Equal opportunities for everyone
Diversity and inclusion are a priority for us and we’re making sure we have lots of support for all of our people to grow at Monzo. At Monzo, we’re embracing diversity by fostering an inclusive environment for all people to do the best work of their lives with us. This is integral to our mission of making money work for everyone. You can read more in our blog, 2026 Diversity and Inclusion Report and 2025 Gender Pay Gap Report.
We’re an equal opportunity employer. All applicants will be considered for employment without attention to age, ethnicity, religion, sex, sexual orientation, gender identity, family or parental status, national origin, or veteran, neurodiversity or disability status.
If you have a preferred name, please use it to apply. We don't need full or birth names at application stage 😊
Lead hands-on independent validation of models used for credit decisioning within Borrowing strategies, covering machine learning, decision science, and NPV models, ensuring they are fit for purpose, governed, and performing as expected.
Support oversight and validation of broader credit risk models, including IFRS9, stress testing, and economic response models.
Develop a deep understanding of Monzo's credit models to provide impactful input and challenge to model developers.
Review ongoing model performance monitoring to ensure lending models perform within risk thresholds.
Perform statistical analyses to independently assess model performance, including developing challenger models.
Improve the Model Risk Framework, including policies, standards, and procedures aligned with regulatory guidelines.
Write clear model validation reports and present findings to relevant committees.
Partner with first-line credit strategy and modelling teams and wider risk teams across Monzo.
