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# Backend Engineer III

- **Company:** Monzo
- **Location:** Cardiff, UK (Remote available)
- **Salary:** £85,000.0 - £110,000.0
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Amazon Web Services, Data Infrastructure, Distributed Systems, Web Applications, Backend
- **Published:** August 21, 2026
- **Apply:** https://www.apply4u.co.uk/jobs/backend-engineer-iii/42919229

## About the Role

to help you meet other commitments or strike a great work-life balance. You should apply if you have strong experience working on the backend of a technology product you want to be involved in building a product that you (and the people you know) use every day you have a product mindset: you care about customer outcomes and you want to make data-informed decisions you're comfortable working in a team that deals with ambiguity you're interested in distributed systems and writing resilient software you have some experience with strongly-typed languages (Go, Java, C, Scala etc.). you think you'd enjoy the kind of work we're doing We're on the look out for L40 Engineers at the moment; you can read more in our Engineering Progression Framework. You will be interviewed across the whole framework, so if you're not sure what level you're aiming for chat to your recruiter! We are dedicated to creating a diverse and welcoming team. If you're passionate about this
role and keen to learn and grow with us, we encourage you to apply even if you don't have everything listed. What you'll be working on We hire very technically agnostic so while we use the below technologies we do not expect prior knowledge, you will be fully supported in our organised onboarding to get up to speed in the below: Go to write our application code (there's an excellent interactive Go tutorial here) AWS for most of our production infrastructure and GCP for most of our data infrastructure React for our public web apps and internal tools We also have physical datacenters with actual cables to connect to various third parties The Interview Process Our interview process involves three main stages: Initial Call Take home task or pair coding exercise Final interview: including a system design and a behavioural interview Our average process takes around 4 weeks but we will always work around your availability. What's in it for you, £85,000 -

## Description

if you are where you want to be. If you live outside of London and we ask you to come into the office, Monzo will support you with the costs. Our offices are naturally social, especially Tuesdays, Wednesdays and Thursdays, which happen to line up with our twice-weekly Monzo lunches & treat Thursdays. Teams also schedule time together often for work and play - in or around the office, or online. Set up a work schedule that delivers impact and fits your life At Monzo, we value connections, flexibility, and wellbeing. We keep our meetings during core hours to stay connected and believe in maintaining work/life balance. You'll be empowered to manage your work in a way that suits you and your team, giving you the freedom for children drop-offs and pick-ups, walking your dog or adventurous cat, avoiding peak commuting times or gym slots, appointments, or supporting your family in an emergency. If you prefer to work part-time, we'll make this happen whenever we can - whether this is


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