Senior Full Stack Engineer Ruby on Rails + React/TypeScript

Candidate’s Location: European Union (EU)! Format: Remote Employment Contract: B2B Salary Range: To be discussed during the interview We're looking for a Senior Full Stack Engineer to join an established international B2B SaaS product company. ✍️ What you'll work on: - Build features across the stack using Ruby on Rails and React/TypeScript - Build and evolve GraphQL APIs - Develop and maintain integrations with third-party platforms - Own features end-to-end: from technical and product decisions to release and production - Take part in architecture and refactoring decisions - Work with a mature production system and help it grow 👀 What we're looking for: - Strong commercial experience with Ruby on Rails - Strong React + TypeScript - Solid PostgreSQL knowledge, including schema design and query optimization - Hands-on experience building and working with GraphQL - Experience integrating third-party APIs - Strong engineering practices: testing, code reviews and documentation - Ability to take ownership and work independently in a distributed team - Languages: English - B2 , used for documentation, tickets and company-wide communication Russian — fluent, used for day-to-day communication within the engineering team 👍 Nice to have: Go, Sidekiq or similar background job systems, experience breaking down monolithic applications into services, feature flags, OAuth and social media API integrations. ✅ What we offer: Flexible working hours 28 days of paid vacation Regular performance and compensation reviews International B2B SaaS product Strong product and engineering team Hiring process: Recruiter intro → 3 interviews with the team → offer