Skip to Content

Monzo Blog

The latest updates, stories, ideas and guides from the Monzo team.

A screenshot showing part of an experiment proposal template on Notion. The headings include: What problem are we trying to solve? Why should we solve it? How should we solve it? What if this problem didn't exist?
Design
23 May 2022

Pellets not cannonballs: How we experiment at Monzo

In Alex's first 6 months at Monzo, we ran 21 experiments. In this post, Alex explains how we design and run experiments, and how they help us improve the customer experience.

Data
Technology
17 May 2022

Joining Monzo as a Data Scientist

Izak joined Monzo as a data scientist in February. In this post, he shares his journey to Monzo and his early experience in the data discipline, with our data stack, and in the team looking after our Customer Operations.

Technology
15 May 2022

How we deploy to production over 100 times a day

Our success relies on us rapidly shipping new features. To achieve this rapid release cadence, we’ve optimised our engineering culture, tooling, and architecture to go from idea to production as frictionless as possible, without sacrificing safety.

Illustration of a Monzo card
Data
Machine Learning
12 May 2022

Moving from Data Science into Machine Learning

Rob joined Monzo as a Data Scientist, and recently moved into Machine Learning. Here's his journey!

An illustration of some people building a puzzle together
Technology
5 May 2022

Becoming an Engineering Manager: 1 year in

Last year, I made the switch into engineering management full time. It’s been an interesting journey with lots of lessons learned.

Product Updates
4 May 2022

No card, no problem – view your 3-digit security number in-app

Usually called the CVC, and found on the back of your card.

An illustrated image of four people standing in a variety of poses
Team
28 April 2022

"At Monzo, it's as easy as it can be for a parent!"

We spoke to parents across Monzo to learn about their experiences of balancing building a bank with taking care of their little ones.

Overview of Monzo's ML stack
Data
Machine Learning
25 April 2022

Monzo’s machine learning stack

Neal Lathia, Director of Machine Learning at Monzo gives an overview of Monzo's machine learning platform, the principles behind it, and future plans.

Technology
20 April 2022

How our Android engineers automated the removal of Kotlin synthetics

Our Mobile Platform team recently faced the challenge of having to remove all synthetic view properties. This post explains how we built a tool to automate the task and the trade-offs we had to consider along the way.

Six phone screens, each showing a new Monzo feature: Monzo Flex, get paid for businesses, Trends, Pay on card from a Pot and cashback on international transfers
Technology
11 April 2022

How everyone at Monzo gets involved with testing

Everyone at Monzo gets involved in testing new features and versions of the app before we release them. In this post Sarah, part of our Quality Assurance team, explains the different types of tests we use and how we run them.

Data
8 February 2021

Borrowing Data at Monzo

We're hiring for the borrowing data team!

engineers at monzo OG
Technology
3 April 2022

My first 3 months at Monzo as an engineering manager

Jarryd joined Monzo as an engineering manager a few months ago. In this post he shares his journey to Monzo and how he found his feet in his new role.

Image of a lock
Technology
Security
30 March 2022

How we secure Monzo’s banking platform

Our Security Infrastructure team introduces the principles we follow to build security in Monzo’s fast-moving engineering environment and how they work with other engineering teams to keep our customers and platform safe.

Data
Machine Learning
28 October 2021

Machine Learning at Monzo in 2021

A review of Monzo's machine learning team in 2021

Technology
30 September 2024

Demystifying the Backend Engineering interview process

We want to explain exactly what our Backend Engineering 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.