Backend Engineer (Ruby)

November 6, 2026

Remote

Middle

United Kingdom

Keep in mind

Citizenship requirement applies

Also worth knowing

Includes on-call duty
English is required

Description

A backend engineering role on a Repository Services team working on the repository side of Source Code: how code enters a repository, who may change it, and how those changes are verified. The work builds an access layer on Gitaly's primitives for cloud, self-managed and dedicated deployments, using Ruby and GraphQL. The new team's first months focus on reliability and support: performance and SQL tuning, caching, rate limiting, testing, observability and resiliency. The role involves collaboration with product management, design, testing, security, UX research, technical writing and adjacent Source Code teams.

Responsibilities

Develop secure, well-tested, performant features and improvements using Ruby and GraphQL
Work through complex requirements and legacy constraints to deliver clear solutions while protecting the reliability of this critical system
Design and maintain backend services, application programming interfaces, data models, and business logic that control how code reaches a repository, who may change it, and how it is verified
Build on the primitives Gitaly provides and work closely with the Gitaly team
Triage and fix bugs and support requests for the features the team owns
Collaborate across functions and teams, both asynchronously and synchronously, and involve domain experts when their input will improve the outcome
Use artificial intelligence agents for well-scoped work when they can speed up delivery without sacrificing quality, and critically review their output
Write maintainable code that follows standards and contribute to constructive code reviews
Help strengthen reliability by monitoring production health metrics, participating in Tier 2 on-call, troubleshooting incidents, contributing to root cause analysis, and improving observability and resiliency
Share knowledge through code review, technical documentation, and everyday collaboration while learning from others
Take part in on-call or operational support where your team's ownership model requires it

Requirements

Professional experience building backend web applications, services, or application programming interfaces, with experience using Ruby and GraphQL
An understanding of relational databases, structured query language, data modeling, caching, background processing, and backend performance practices
Experience contributing to user-facing workflows and maintaining their underlying systems
Experience writing backend unit and integration tests, with familiarity with the testing pyramid, Git, and collaborative code review processes
Experience using artificial intelligence coding agents and reviewing their output, or an interest in building these skills in a complex monorepo
Clear written and spoken English communication skills, including sharing useful status updates in a remote, asynchronous environment
The ability to manage assigned priorities, work through ambiguity, take ownership of your work, and seek guidance when needed