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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Developer - **Company:** Unboxed - **Location:** London, UK - **Experience:** Experienced - **Salary:** £53,182.0 - **Contract:** Permanent contract - **Skills:** HTML, JavaScript (Programming Language), Application Programming Interfaces (APIs), Artificial Intelligence, Amazon Web Services, Unix, Cascading Style Sheets (CSS), Cloud Computing, Continuous Integration, PostgreSQL, MySQL, Open Source Technology, Ruby on Rails, Ruby, SQL Databases, TypeScript, Web Content Accessibility Guidelines, Git, Software Version Control, Legacy Systems - **Published:** June 17, 2026 - **Apply:** https://uk.indeed.com/viewjob?jk=ba715614116d99ce ## About the Role Do you have experience in UNIX?, We are looking for someone with 3+ years' experience to join our development team as a mid-level Developer, working across a range of impactful public sector projects., * Experience working in a GDS-style environment or following the GDS Service Manual * Familiarity with the Discovery, Alpha, Beta, Live delivery framework * Experience working in an agile team with designers and user researchers * Open source contributions * Experience setting up and maintaining UNIX systems * Experience working with AI tools and agentic workflows Core competencies and behaviours We expect everyone at Unboxed to be: * Naturally collaborative * Good communicators (written and verbal) * Creative problem solvers * Adaptable * Comfortable with uncertainty and complexity * Curious and questioning * Active listeners * Empathic, humble and generous * Open and honest * Always learning * Passionate about our work * Reflective, on yourself and the situation ## Description This is a hands-on development role for someone who cares about why they're building something, not just what they're building. You'll be a core member of a small, cross-functional team alongside designers, user researchers, and delivery managers, working closely together throughout delivery. You'll work primarily in Ruby on Rails, contributing to real products used by real people in public services. We don't build for high-traffic consumer apps or optimise for scale as an end in itself. We build things that work, that are tested, that are accessible, and that solve genuine user needs. We're looking for someone who is collaborative, curious, and comfortable working in an environment where requirements evolve and the right approach is often discovered through doing. You should be at home in a GDS-style delivery environment, familiar with agile ways of working, and genuinely interested in the outcomes your code enables. The successful candidate will also be available for out-of-hours support on a rota basis (for an extra payment), which will require working knowledge of AWS or a similar cloud provider., * Building and maintaining Ruby on Rails applications across Discovery, Alpha, Beta, and Live phases * Working directly with designers to turn designs and prototypes into functional, accessible products * Participating in user research sessions and contributing to decisions about what to build * Writing and maintaining automated test suites as part of normal delivery * Reviewing and adapting existing codebases, including legacy systems * Working with Git, version control workflows, and continuous integration pipelines * Contributing to and consuming modern APIs * Demonstrating best-in-class security practices, especially when handling personal or public data * Making products accessible by default, following WCAG standards * Participating in show and tells and presenting your work to clients and stakeholders * Reviewing technical colleagues' pull requests kindly and constructively * Adapting to new technologies and workflows, including AI coding tools * Keeping up to date with relevant technology developments and sharing knowledge with the team Technical competencies * Ruby and Ruby on Rails (essential) * SQL (PostgreSQL or MySQL preferred) * Git and version control workflows * HTML, CSS, and accessibility standards * JavaScript/TypeScript * Cloud infrastructure (AWS preferred) * Continuous integration and delivery ## Related Videos - [Coffee with Developers: David Heinemeier Hansson](https://www.wearedevelopers.com/videos/875-coffee-with-developers-david-heinemeier-hansson) - [Navigating the Corporate Jungle: Life as a Developer in a large Company](https://www.wearedevelopers.com/videos/621-navigating-the-corporate-jungle-life-as-a-developer-in-a-large-company) - [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94) - [The Resilience of the World Wide Web](https://www.wearedevelopers.com/videos/1281-the-resilience-of-the-world-wide-web) - [The Evolving Landscape of Application Development: Insights from Three Years of Research](https://www.wearedevelopers.com/videos/1459-the-evolving-landscape-of-application-development-insights-from-three-years-of-research) - [Git for Code Reviews](https://www.wearedevelopers.com/videos/429-git-for-code-reviews) ## Related Articles - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [Fullstack Developer Salary UK](https://www.wearedevelopers.com/magazine/251-fullstack-developer-salary-uk) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [WeAreDevelopers Dev Digest Issue 116 - The new search wars…](https://www.wearedevelopers.com/magazine/445-wearedevelopers-dev-digest-issue-116-the-new-search-wars) - [Software Engineer Salary London](https://www.wearedevelopers.com/magazine/252-software-engineer-salary-london) - [Frontend Developer Salary in The UK](https://www.wearedevelopers.com/magazine/233-frontend-developer-salary-in-the-uk)