---
title: 'Credit Model Validation Manager (Machine Learning & NPV Models) at Monzo'
canonical: 'https://feeny.ai/job/credit-model-validation-manager-machine-learning-npv-models-monzo-cardiff-qsryrpmer45s'
type: 'job'
last_seen: '2026-09-16'
---

# Credit Model Validation Manager (Machine Learning & NPV Models) at Monzo

- **Company:** Monzo
- **Location:** Cardiff London OR, United Kingdom
- **Work type:** remote
- **Posted:** 2026-06-23
- **Last confirmed live:** 2026-09-16
- **Apply:** https://job-boards.greenhouse.io/monzo/jobs/8023162

## Job description

🚀 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](https://monzo.com/current-account/personal) and [business](https://monzo.com/business-banking) bank accounts, we offer [joint accounts](https://monzo.com/current-account/joint-account), [accounts for 16-17 year olds](https://monzo.com/current-account/16-17), a [free kids account](https://monzo.com/current-account/under-16s) and [credit cards](https://monzo.com/flex) in the UK, with more exciting things to come beyond. Our UK customers can also [save](https://monzo.com/savings), [invest](https://monzo.com/investments)and [combine their pensions](https://monzo.com/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](https://monzo.com/careers/)

🌟 About the team:

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…

- Leading hands-on independent validation of models used for credit decisioning within our Borrowing strategies - covering a range of machine learning, decision science and NPV models. You will be ensuring that models are fit for purpose, appropriately governed, explainable and performing as expected
- Supporting oversight and validation of broader credit risk models, including IFRS9, stress testing and economic response models
- Developing deep understanding of Monzo’s credit models, and using this to provide impactful input and challenge to model developers to improve our modelling capabilities
- Reviewing ongoing model performance monitoring to ensure our lending models perform within our risk thresholds, and providing support to our first line of defence teams when action is required
- Performing statistical analyses to independently assess model performance, including developing challenger models where appropriate to test model assumptions and strengthen validation conclusions
- Improving our Model Risk Framework, including overseeing our policies, standards and procedures to help embed best practice across the business. This means making sure we follow up-to-date regulatory guidelines, and adapt our processes to make sure they remain relevant as modelling techniques evolve
- Writing clear and impactful model validation reports, and presenting the findings and actions in relevant committees
- Partnering with colleagues in the first line of defence credit strategy and modelling teams - and wider risk teams across Monzo - to support the embedding of our model risk framework and establishing consistent validation standards across the organisation
- Embracing new and innovative technology, including leading the adoption of AI tools to enhance our model validation approach

🤩 We’d love to hear from you if…

- Have a strong background and practical experience in credit model development and/or validation - in particular with exposure to machine learning or statistical models used in credit decisioning, such as decision science scorecards, origination / underwriting PD models, and NPV / unit economics modelling
- Are data driven, with strong analytical skills and deep understanding of statistical techniques for credit and model risk. Being able to get hands on with data is critical - so strong SQL and Python skills are essential, and experience with data visualisation tools such as Tableau, Looker or similar is a plus!
- 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, and are able to articulate problems and solutions using clear and simple language. This is particularly important for breaking down complex issues and priorities to non-experts
- Have a track record of building and maintaining trusting relationships with stakeholders at all levels, and can provide effective and respectful challenge
- Are impact-driven, and proactive in identifying issues and opportunities to improve outcomes for both our customers and our business
- Are passionate about technology, and what we’re doing here at Monzo excites you!

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):

- [Google Cloud Platform](https://cloud.google.com/) for all of our analytics infrastructure
- [dbt](https://www.getdbt.com/) and[BigQuery SQL](https://cloud.google.com/bigquery/) for our data modelling and warehousing
- Python for data science and machine learning
- [Go](http://golang.org/) to write our application code
- [AWS](http://aws.amazon.com/) for most of our backend infrastructure

The interview process:

Our interview process usually involves up to four main stages via Google Hangouts:

- An initial call with our recruiter
- A call with our Senior Model Validation Manager, the hiring manager for the role
- A role-specific call with colleagues from our credit modelling teams. We’ll share a short case study in advance, but you won’t need to submit a written response; we’ll use it to guide the discussion during the interview.
- A behavioural interview

🙌 What’s in it for you

- 💰 £79,000 - £93,000 + Incentive Awards tied to your performance benefits.
- 📍 This role can be based in our London office, but we're open to distributed working within the UK (with ad hoc meetings in London).
- ⏰ We offer flexible working hours and trust you to work enough hours to do your job well, and at times that suit you and your team.
- 📚 £1,000 learning budget each year to use on books, training courses and conferences.
- 🏡 We will set you up to work from home; all employees are given MacBooks and for fully remote workers we will provide extra support for your work-from-home setup.
- ➕ Plus lots more! Read our full list of [benefits](https://monzo.com/careers).

We have some guidelines on using Artificial Intelligence (AI) to ace an application and interview at Monzo. You can read them [here](https://monzo.com/blog/the-ultimate-guide-on-using-ai-to-ace-an-interview-at-monzo).

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](https://monzo.com/blog/diversity-and-inclusion), 2026 [Diversity and Inclusion Report](https://monzo.com/blog/our-2026-diversity-and-inclusion-report) and 2025 [Gender Pay Gap Report.](https://monzo.com/blog/gender-pay-gap-report-2025)

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 😊

## About Monzo

## Company Overview
- **One-liner**: Monzo is a UK-based digital bank offering personal and business current accounts, savings, loans, investments, and insurance through a mobile-first platform.
- **Entity Type**: Private (Series I, unicorn)
- **Headquarters**: London, United Kingdom (offices also in Cardiff, Dublin, and Barcelona)
- **Founded**: 2015
- **Founders**: Tom Blomfield, Gary Dolman, Jonas Huckestein Templestein, Jason Bates, Paul Rippon (current co‑CEOs are Diana Layfield and Conor Walsh)

## Core Business
- Primary industry/industries: Digital banking and financial services (consumer finance, payments, lending)
- Target customers: B2C (personal banking) and B2B/SMB (business banking); primarily UK‑based, with growing EU presence
- Mission or purpose statement: “Building a bank you’d be proud to use” – focused on solving problems, not selling financial products, and making money work for everyone.

## Products & Services
- **Personal Current Account**: Mobile‑banking account with budgeting tools, spending insights, and automated savings. Features real‑time notifications, card controls, and biometric authentication.
- **Business Current Account**: Separate account for small businesses with expense categorisation, invoicing, and integration with accounting software.
- **Savings Pots**: Sub‑accounts inside the app to save toward goals; includes interest‑bearing options.
- **Credit Cards & Loans**: Personal credit cards, overdrafts, and Flex (buy‑now‑pay‑later style borrowing). Also offers personal loans.
- **Investments**: Share dealing and ISA products (introduced in 2024).
- **Insurance**: Home, travel, and gadget insurance (underwritten by partners).
- **Pension Management**: Tools to manage and consolidate pension pots within the app.

## Market Standing
- **Valuation**: $5.2 B (current, per Tracxn; latest round Series I)
- **Key Metric**: Annual revenue £1 B+ (as of 31 Mar 2025), total funding $1.81 B
- **Notable Investors/Partners**: General Catalyst, Passion Capital, Accel (lead investors in previous rounds)
- **Growth Signals**: 15 million+ personal and business customers; headcount of ~3,786 (YoY growth 26.8% per Revelio Labs); expansion into EU via Dublin office; launched investment and pension products in 2024; continued lending product innovation (Flex, credit cards).

## Competitive Advantages
- **Community‑driven product development** – Customers actively suggest features, test the app, and give feedback, creating strong brand loyalty.
- **Mobile‑first architecture** – Built from scratch as a digital‑only bank, offering a seamless user experience with real‑time budgeting and spending insights.
- **Regulatory innovation** – One of the first UK challengers to obtain a full banking licence, enabling deposit‑taking and lending.
- **Open‑source culture** – Engages with the engineering community through open‑source contributions and transparent development.

## Strategic Focus
- **Product expansion**: Deepening lending and investment offerings, and building a wealth management suite.
- **International growth**: Scaling in the European market (office in Barcelona, Dublin hub, and hiring for EU‑focused roles).
- **Embedded finance**: Enabling third‑party services to use Monzo’s banking infrastructure.
- **Operational efficiency**: Using AI/ML for risk management, fraud detection, and personalised financial recommendations.

## Why Work Here
- **Culture**: Open, collaborative, and inclusive; regular community events, yoga, and lunch‑and‑learns; contributes to open‑source software.
- **Remote/Hybrid**: Office‑based roles allow occasional remote work; distributed workers receive equipment budget. Roles in London, Cardiff, Dublin, Barcelona, or UK‑remote.
- **Visas**: Monzo sponsors visas for tech, engineering, and product roles due to Home Office regulations.
- **Learning**: £1,000 annual budget for books, courses, and conferences; regular knowledge‑sharing sessions.
- **Compensation & Benefits**: Annual salary reviews; performance‑based incentive awards (cash/equity mix); pension (4% Monzo contribution, matching up to 6%); private healthcare; life insurance (4x salary); 26 days holiday + bank holidays (or opt‑out for 34 days); 8‑week sabbatical every 5 years; generous family leave (primary caregiver 26 weeks full pay, secondary 13 weeks full pay); paid sick leave; cycle‑to‑work scheme.
- **Office Perks**: Free breakfast, hot lunches twice a week, snacks, and drinks in London office.

## Sources
1. [monzo.com/careers](https://monzo.com/careers) – Benefits, visa policy, flexible working, culture
2. [monzo.com/about](https://monzo.com/about) – Company overview, mission, customer count
3. [tracxn.com/d/companies/monzo](https://tracxn.com/d/companies/monzo/__HguZJzK7Q_qZsyIz1Y4VwV75H5fHjDMtGaXPelPAxpU) – Funding, valuation, revenue, employee count, founders, CEOs
4. [job-boards.greenhouse.io/monzo](https://job-boards.greenhouse.io/monzo/jobs/7963253) – Open roles, location details
5. [reveliolabs.com/companies/monzo-bank/employees](https://www.reveliolabs.com/companies/monzo-bank/employees/) – Headcount growth

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