Monzo Blog

Machine Learning at Monzo in 2025
Our Machine Learning foundations have matured into a core capability. ML is used at Monzo for defending against financial crime, scaling operations, and powering intelligent, personalised experiences in our products

Beyond the Bank App: My First Eight Months in Monzo Data
Aiste Luksyte, one of our Data Science Manager at Monzo shares their journey from a missed LinkedIn message to joining the Operations Data team. She tells us about Monzo’s strong data culture, flexible work setup, and collaborative environment.

Building the 1p Saving Challenge
This blog shares the process behind how we created the 1p Saving Challenge, our incremental saving challenge that has been hugely successful with customers.

Pet-nup before you break-up: the hidden costs of sharing a pet with a partner
Do you really need a pet-nup? Discover the hidden costs of sharing a pet with a partner, including the price of a break-up and the pitfalls of splitting expenses.

Our Growth forecasting journey: from launch to impact
This blog talks about how we forecast customer growth at Monzo, and how we use the tool Prophet, which accounts for seasonality, marketing spend, and one-off campaigns to produce accurate, interpretable forecasts, to support our various functions.

Expectations for an Engineering Manager at Monzo
A comprehensive guide for Engineering Managers. It outlines expectations on impact, technical strategy, and team building and how we enable our EMs to drive their areas with strong support from their manager at Monzo.

Beyond the Last Click: How Monzo Measures CRM’s True Impact
In this blog we cover how Monzo approaches CRM measurement. We detail our new hybrid model that uses universal holdouts and attribution to precisely measure how our messages impact customer behaviour.

Beach day budgeting: the best value spots for sun loungers across Europe
Discover where your holiday budget goes furthest with our guide to the best and worst value sun loungers on the top beaches in the UK and Europe this summer.

Building a reactive Fraud Prevention Platform
Over the last year, we’ve re-designed our Fraud Prevention Platform at Monzo to scale with control complexity, allows us to ship fast and adds better monitoring for our controls

From Dashboards to Data Products: How We’re Redesigning Analytics in Monzo Customer Operations
This post is about a significant change in how we approach data within Operations: shifting from a service mindset to treating our data as a product. As a result our teams can self-serve more effectively, helping us navigate our platform migration.

Monzo is opening an engineering hub in Barcelona!
We’re opening an office and hub in Barcelona to support our core platform and help reach our ambition of making money work for everyone, globally! We’re attending, sponsoring and hosting events in Barcelona throughout the year ✨

Designing bulk payments for how businesses really work
This blog discusses how we designed and built bulk payments: letting users send multiple payments in one go. It’s a story of cross-team collaboration, complex challenges, and how we stayed laser-focused on what our users actually need to get done.

You can now undo payments
With a Monzo account, it’s now possible to reverse a payment if you made a mistake with the amount you sent, who you sent it to, or the fact that you sent it at all.

Our 2024 Diversity and Inclusion Report
Read our 2024 Diversity and Inclusion report to find out what we're doing to create an environment where everyone can belong.

Demystifying the Senior Staff+ Engineering interview process
We want to explain exactly what our Senior Staff+ interview process entails to make it fair and transparent for all our applicants. This post explains what you should expect from each of our interviewing stages and how to prepare.