About this role
Salary: £70,000 - 80,000 per year
Requirements: Strong commercial experience with Ruby on Rails in production environmentsStrong understanding of object-oriented programming and Rails architectureExperience building and maintaining scalable backend systems and APIsStrong PostgreSQL experience, including complex queries and performance optimisationExperience with Redis and Sidekiq for background job processingExperience working with REST APIs, JSON serialisation, and authentication methods such as JWT or SSOExperience working with AWS-based infrastructureExperience using Docker within development or production environmentsExperience troubleshooting and supporting live production systemsStrong debugging and problem-solving capabilitiesExperience working within existing codebases and improving legacy functionalityStrong communication and collaboration skillsExperience working within Agile environments using Git/GitHubExperience working with SOAP/XML integrationsExperience migrating serverless components into Rails applicationsFamiliarity with Vue.jsExperience supporting mobile applications or mobile-focused backend servicesExperience within regulated industries or operational B2B SaaS environmentsExperience improving CI/CD pipelines and deployment reliabilityOpen-source contributions or technical blogging experience Responsibilities: Maintain and improve Ruby on Rails applications supporting core operational processesDesign, build, and maintain scalable backend services and APIsWrite clean, maintainable, and well-tested codeSupport platform reliability, scalability, and long-term maintainabilityManage and improve integrations with third-party systems and APIsOptimise PostgreSQL database performance and background job processingSupport AWS-based deployments and CI/CD processes alongside Platform teamsInvestigate, troubleshoot, and resolve production issuesImprove monitoring, observability, and deployment confidenceCollaborate closely with frontend, mobile, and product teamsContribute to backend architecture improvements and technical documentationSupport continuous improvement across engineering standards and delivery practicesTake ownership of systems that directly support live operational environments Technologies: AWSBackendCI/CDDockerFrontendGitGitHubSupportJSONJWTMobilePostgreSQLRESTRailsRedisRubySOAPServerlessVueXMLCloud More:
We are a growing technology business building operational SaaS platforms used within large-scale, real-world environments. Our backend engineering team maintains and evolves systems that support live operational workflows, high-volume transactional activity, and business-critical processes. We offer a fast-paced, product-focused environment with a strong emphasis on reliability, scalability, and engineering quality. This is a London-based hybrid role, with two days per week onsite, and a salary of £65,000 to £80,000 depending on experience.
last updated 30 week of 2026