Ruby on Rails Backend Engineer (IT)
Core
Stabilizing the core Ruby on Rails ecosystem, optimizing database performance, and managing secure third-party integrations for a Series A startup in the transport sector.
Role type
Senior Ruby on Rails Backend Engineer
Builds
Core operational platforms, RESTful APIs, and background job systems
Domain
UK Transport / Fintech / Accessibility
Deliverable
production ML models | product features | infrastructure
Required skills
Ruby on Rails, PostgreSQL, Sidekiq, Redis, Docker, AWS, JWT/SSO authentication, RESTful API design, C4 modeling
Preferred skills
OOP, complex query optimization, containerized deployment workflows, incident response leadership
Technologies
Ruby, Rails, PostgreSQL, Sidekiq, Redis, Docker, AWS, JWT, SSO
Responsibilities
Lead the evolution of core Ruby on Rails operational platforms; Optimize PostgreSQL performance and Sidekiq background job efficiency; Manage secure third-party integrations and RESTful API design; Partner with Platform teams on AWS and CI/CD reliability
Seniority
Senior, hands-on IC
