Senior Full Stack Engineer Ruby on Rails + React/TypeScript
First seen by Alion on Sep 29, 2026.
- 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