I need a seasoned developer who can move comfortably between a Ruby on Rails back-end and a React front-end. The codebase already runs in production; my immediate priorities are to ship several new features, streamline performance, and tighten test coverage without disrupting current users. You’ll be diving into models, controllers, and API endpoints on the Rails side, then wiring the data up through React components, hooks, and context. Clean, maintainable code and thoughtful git history matter more to me than raw speed. RSpec, Jest, Webpack (or Vite), and PostgreSQL are part of the stack; if these are second nature to you, we’ll get along well. Deliverables will vary by sprint but typically include: • A pull request that passes CI and code review • Matching unit/feature tests for any new behavior • A concise changelog entry and deployment notes If you have production examples where you owned both Rails and React layers, share links or repos in your message so I can review your approach before we chat.