Backend Engineer III - Remote, Stock Options

  • I did my part and supported the Regular Toilet
  • Cardiff, South Glamorgan
  • 26/05/2026
Full time Information Technology Telecommunications

Job Description

London / UK Remote Engineer III £75,000 - £105,000 + Technology - Engineering

About Our Engineering Teams

We have around 400 engineers across Monzo who design and build our in house banking platform. We have big ambitions for the future, and technology plays a big role in creating a bank our customers want, so engineers at Monzo collaborate across disciplines to solve interesting challenges throughout the company.

These range from the products our customers use everyday to underlying infrastructure, security, payments and finance, customer operations, financial crime, and data, to name just a few areas. As a bank, there is scope for impact across a huge number of opportunities.

We contribute to open source software as much as possible. Our blog is a good place to learn even more about what we do!

Your day-to-day

This role is all about collaborating with your team to make a difference to your customers. As a backend engineer you'll work in a squad alongside other disciplines like product managers, marketers, user researchers, designers, mobile engineers, web engineers, data analysts, business analysts, writers and more!

Together you'll build and support a particular part of Monzo. Our squads belong to our wider collectives (a word we use to describe self governing business units of about 100 people). They are Core Banking, Business Banking, Wealth, Borrowing, Growth, Payments, Platform, Fincrime, Security & Expansion.

We do not ask for formal qualifications or degree requirements for any of our engineering roles.

Qualifications
  • Strong experience working on the backend of a technology product
  • Want to be involved in building a product that you (and the people you know) use every day
  • Have a product mindset: care about customer outcomes and make data informed decisions
  • Comfortable working in a team that deals with ambiguity
  • Interested in distributed systems and writing resilient software
  • Have some experience with strongly typed languages (Go, Java, C, Scala, etc.)
  • Think you'd enjoy the kind of work we're doing
Additional Context

We're looking for L40 Engineers at the moment. You can read more in our Engineering Progression Framework. You will be interviewed across the whole framework. If you're not sure what level you're aiming for, chat with your recruiter!

Onboarding and Tech Stack
  • Go to write our application code (there's an excellent interactive Go tutorial here)
  • Cassandra for most persistent data storage
  • Kafka for our asynchronous message queue
  • Kubernetes and Docker to schedule and run our services
  • Envoy Proxy for RPC
  • 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
Benefits
  • £75,000 - £105,000 base salary plus stock options
  • We can help you relocate to the UK
  • We can sponsor visas
  • This role can be based in our London office, but we're open to distributed working within the UK
  • We offer flexible working hours and trust you to work enough hours to do your job well, at times that suit you and your team
  • Learning budget of £1,000 a year for books, training courses and conferences
  • And much more, see our full list of benefits
Equal opportunities

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 the application stage.