Backend Engineer - Ruby

In this role, you will strengthen Raylo’s backend to power flexible, affordable electronics subscriptions. You’ll work with cross-functional teams to deliver features that improve the customer journey and operational efficiency, while scaling systems and integrating third-party services. The role sits at the core of a fast-growing, AI-enabled engineering culture focused on reliable, scalable software. You’ll have the chance to impact the company’s mission to enable circular electronics models and drive growth.

• Fast-track your career
• Exclusive Raylo device lease for employees
• Private Medical Insurance
• Stock options for all employees
• Hybrid working model
• 33 days off, flexible to use

• Build, maintain, and scale backend services using Ruby on Rails and related technologies
• Collaborate with product and frontend teams to deliver features that enable new customer experiences and operational efficiencies
• Participate in code reviews and pairing sessions
• Integrate and optimise third-party services that power the subscription platform
• Continuously improve backend systems with a focus on scalability, reliability, and performance
• Take ownership of medium-sized projects, from design to delivery, and contribute to larger initiatives with senior engineers
• Write clean, tested, and maintainable code, with CI/CD pipelines in GitHub Actions and end-to-end testing in Playwright
• Work on asynchronous job processing at scale with Sidekiq Enterprise

• 2–4 years of backend engineering experience
• Strong proficiency in Ruby on Rails and experience with Sidekiq for large-scale job processing
• Experience deploying and running applications in Heroku (or similar PaaS) with CI/CD pipelines
• Familiarity with GraphQL APIs and automated testing frameworks such as RSpec
• Collaborative mindset and strong communication skills
• Proactive, curious, problem-solving attitude with a passion for solving real business problems with technology
• Eagerness to continuously learn and improve in Ruby and Rails

• collaborative mindset
• strong communication skills
• proactive and curious attitude
• Ruby on Rails
• Sidekiq
• Heroku (or similar PaaS)