Technology
Sensitivity analysis
This blog explains sensitivity analysis, which is a useful data science technique for assessing the impact of different variables on an outcome metric.
How we manage technology risk at Monzo
In this post, three Monzonauts explain how they work together with each other and other disciplines to manage risk in a fast-moving tech-focused banking environment.
Speeding up our balance read time: The planning phase
The ledger is where we keep track of all customer money movements coming in and out of customers’ accounts. We started a project to speed up the ledger balance read time. In this post we’ll cover the planning and experiments we ran.
What we learned from 43 experiments in 12 months
This blog shares some of the learnings we've had from our experiments in customer help and support over the last year
Sweating the Small Stuff: What do app screens and pedestrian-crossings have in common?
This blog talks about why app screens are like pedestrian crossings, or more specifically, how some subtle tweaks to a user-interface in Monzo's sign-up process has had a surprisingly large impact!
Designing a regional experiment to measure incrementality
This blog post covers the approach for how we designed a regional experiment to measure the incremental impact of our referral scheme on new customer growth.
Becoming direct participants of Bacs
In September 2022, Monzo became a Direct Participant of the Bacs scheme. In this post, Tech Lead Ryan explains how we built a new connection to the the Bacs scheme over the SWIFT banking network and managed the risks involved.
How we prepare for huge spikes in traffic as millions of our customers get paid early
This blog explains the problems that occur when hundreds of thousands of customers all request to be paid millions of pounds at almost exactly the same time, and what we do to keep things running smoothly while that happens.
Machine Learning at Monzo in 2022
An end-of-year review of how machine learning continues to evolve and grow at Monzo
Building an extension framework for dbt
dbt is a fundamental piece of Monzo’s data platform. We made the big decision to build a whole new extension framework that would give us more flexibility.
Monzo Magic hackathon: 3 days, 120 ideas, 333 Monzonauts
This August, as we were wrapping up the summer, Monzonauts across the business set out to learn from each other, have fun and build things centred around one theme: Monzo Magic. This activity is commonly referred to in the industry as a hackathon.
Reducing our NAT Gateway cost with private networking between AWS and GCP
Sharing knowledge on how we implementing private networking between AWS and GCP
How insights shaped building a 0-1 product: Monzo Flex
We wanted to share more about why we launched a new 0-1 product to help people pay for purchases later and how a mixed-method research discovery led to the product that over hundreds of thousands of customers use and love today!
Taking a design system approach to research guidelines
If you’re starting out in a new role in research ops, design ops or any other kind of team operations, this blog will take you through the ins and outs of creating a flexible how-to guide database for scale.
Argo Rollouts at scale: Bringing Automated Rollbacks to 2,100+ services at Monzo
We introduced automated rollbacks to our platform using Argo Rollouts and made it the default deployment strategy for all our services. This helps us roll out changes safely and catch a wide class of problems related to deploying new code
