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# Backend Engineers (Ruby)

- **Company:** Cleo
- **Location:** London, UK
- **Contract:** Permanent contract
- **Skills:** A/B Testing, Application Programming Interfaces (APIs), Agile Methodology, Business Logic, Automation of Tests, Ruby, Backend
- **Published:** September 9, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=3b7cdf55ee6962cf

## About the Role

* Solid experience with Ruby on Rails, building data models, APIs, and business logic services in a production monolith
 * Comfortable delivering with agile methodologies and practices like automated testing, observability, A/B testing, and feature flags
 * A collaborative approach - you work well with product, design, and analytics partners, and enjoy shaping work beyond just the technical bits
 * Experience mentoring colleagues and supporting their growth as engineers
 * Alignment with our company values and engineering principles

## Description

We're hiring Backend Engineers to join one of our cross-functional product squads - working closely with other engineers, designers, analysts, and other disciplines to build features that improve our users' financial health., * Work on our Ruby on Rails monolith, building data models, APIs, and business logic services

 * Collaborate with peers across your squad and pillar, providing technical insight into upcoming work and helping pull the team together to ship it
 * Deliver your work using agile methodologies and tools like tests, observability, A/B tests, and feature flags
 * Mentor colleagues to help them grow as engineers, and actively support their development
 * Contribute to cross-cutting concerns that raise the bar across engineering
 * Shape your squad's work beyond the technical - take part in product ideation, user research, design reviews, and retrospectives