
Mid-Senior Ruby on Rails Engineer, B2B SaaS
Transreport
full-time
Posted on:
Location Type: Hybrid
Location: London • United Kingdom
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Salary
💰 £75,000 - £90,000 per year
Job Level
About the role
- Own and evolve backend systems: Maintain and improve Ruby on Rails applications supporting operational workflows.
- Technical Quality: Write clean, well-tested code and uphold strong security and data integrity standards.
- Integrations: Manage third-party integrations, ensuring reliable and secure data exchange.
- Infrastructure Collaboration: Work with the Platform team on AWS-based deployments and CI/CD processes.
- Performance & Reliability: Optimise background processing and database performance to maintain system stability.
- Incident Response: Support investigation and resolution of production issues.
- Cross-Functional Collaboration: Partner with Frontend and Mobile engineers to deliver robust, scalable APIs.
- Continuous Improvement: Contribute to improving deployment practices, monitoring, and long-term maintainability.
- Operational Accountability: Act as the technical owner of production systems that directly impact live rail operations, ensuring high availability and rapid incident resolution.
Requirements
- 4+ years of professional experience with Ruby on Rails.
- Strong understanding of object-oriented programming and Rails architecture
- Extensive experience with PostgreSQL, including performance tuning and complex queries.
- Experience with background job processing using Sidekiq and Redis.
- Solid understanding of RESTful API design, JSON serialization, and authentication (e.g., JWT, SSO).
- Hands-on experience with AWS services and containerised deployments (Docker).
- Experience troubleshooting and supporting production systems.
- Comfortable working within and improving existing codebases.
- Ability to prioritise effectively and manage multiple initiatives.
- Strong written and verbal communication skills in English.
- Experience working in Agile/Scrum environments with Git/GitHub.
Benefits
- Private healthcare after your probation (including children)
- Hybrid working model
- 25 days holiday
- Volunteering Leave
- Free flu jab for you and your family
Applicant Tracking System Keywords
Tip: use these terms in your resume and cover letter to boost ATS matches.
Hard Skills & Tools
Ruby on RailsPostgreSQLSidekiqRedisRESTful API designJSON serializationJWTSSOAWSDocker
Soft Skills
communicationprioritizationcollaborationproblem-solvingadaptability