Remote opportunity at
MonzoSenior Backend Engineer
Monzo is recruiting a Senior Backend Engineer for a London-based or remote role, with the Senior Engineer L50 salary posted as £105,000 to £135,000, plus incentive…
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About This Role
Monzo is recruiting a Senior Backend Engineer for a London-based or remote role, with the Senior Engineer L50 salary posted as £105,000 to £135,000, plus incentive awards and benefits. The company has around 650 engineers who build its in-house banking platform, working on customer-facing products as well as infrastructure, security, payments, finance, operations, fighting fraud and data systems. Backend engineers sit in squads with PMs, marketers, researchers, designers, mobile and…
Job Description
Monzo is recruiting a Senior Backend Engineer for a London-based or remote role, with the Senior Engineer L50 salary posted as £105,000 to £135,000, plus incentive awards and benefits. The company has around 650 engineers who build its in-house banking platform, working on customer-facing products as well as infrastructure, security, payments, finance, operations, fighting fraud and data systems.
Backend engineers sit in squads with PMs, marketers, researchers, designers, mobile and web developers, analysts and writers. Squads sit within collectives of roughly 100 people, such as Wealth, Borrowing, Growth, Payments, Platform, Financial Crime, Security, Expansion, Core Banking and Business Banking. Several collectives are working on machine learning and AI, and the posting says candidates are matched to a collective after interviews based on their skills, experience and preferences.
The stack includes Go for application code, Cassandra for persistent storage, Kafka for asynchronous messaging, Kubernetes and Docker for running services, Envoy Proxy for remote procedure calls, AWS for most production infrastructure, GCP for most data infrastructure, and React for customer-facing sites and internal tooling. Candidates do not need prior experience with these tools, because onboarding covers them. The company does not require formal qualifications or degrees for engineering roles.
Applicants should have a substantial record of server-side work on a tech product, a product mindset focused on customer results, and comfort with ambiguity. Interest in distributed systems and resilient software is valued, as is experience with strongly typed languages such as Go, Java, C or Scala. The posting says candidates will be assessed across the full engineering progression framework. The process starts with an initial call, then a take-home assignment or a paired coding session, and a final interview covering system design and behaviour. It usually takes about four weeks, and the company hires for this role on an ongoing basis.
Responsibilities
- Build and support parts of Monzo's banking platform inside a squad alongside product, design and data colleagues
- Write resilient backend services in Go and other languages as the work requires
- Make data-informed decisions that serve customer results
- Contribute to open source software where possible
- Work across the collective's product areas to deliver shared goals
Requirements
- Substantial time spent building server-side parts of a tech product
- Product mindset focused on customer results and data-informed decisions
- Comfort operating in a group where outcomes are not fixed
- Interest in distributed systems and resilient software design
- Experience with strongly typed languages such as Go, Java, C or Scala
Qualifications
- No formal qualifications or degrees are required for engineering roles, according to the posting
Core Skills
Benefits
- Incentive awards tied to performance
- Annual learning allowance of £1,000 for books, courses and conferences
- Flexible working hours and support for working from home
- Help with relocation to the UK and visa sponsorship
Frequently Asked Questions
Answers are based only on the employer’s listing; where it doesn’t say, neither do we.
What is the salary?
The posting lists £105,000 to £135,000 for the L50 Senior Engineer level, plus incentive awards and benefits.
Where is the role based?
The posting says the role can be based in the London office or carried out remotely within the UK, with occasional meetings in London.
Are formal qualifications needed?
The posting says formal qualifications or degrees are not required for engineering roles.
How long does the hiring process take?
It begins with a call, then a take-home assignment or paired coding, and ends with a final interview; it usually takes about four weeks.
Sample Interview Questions
AI-generated questions tailored to this specific role — a preview of the full practice set.
