Senior Full-Stack Engineer, Ruby, ReactJS

• Replace the tightly coupled identity verification solution with a provider-agnostic service usable by any Qonto team
• Build primarily in Ruby, with some Go
• Improve KYC conversion from KYC started to KYC submission across backend and web
• Own the web side of provider integrations, including loading provider SDKs in the browser
• Handle provider errors and keep the web integration running as usage scales
• Build infrastructure behind Qonto’s KYC flow
• Handle provider failures and retries
• Improve observability and operate integrations safely in production
• Design an interchangeable layer across multiple verification providers
• Build reliable APIs for other Qonto teams
• Report to Nicola, Engineering Manager of the Identity Verification team

• Backend experience building and running backend services in production
• Backend-first working approach
• Production web development experience with React
• Ability to maintain and scale an existing React application
• Experience integrating external providers or SDKs
• Ability to design integrations so a single provider does not create lock-in
• Ability to work across backend and web
• Ability to partner with a staff web engineer on architecture and complex integrations
• Ruby experience is a plus, not a requirement

• Full-remote work option while living in France, Italy, Germany, Serbia, or Spain
• Unlimited access to the best AI tools
• Onboarding buddy from week two
• Weekly one-to-one with the manager
• Support from day one
• People-first leadership focused on engineer growth, autonomy, learning, experimentation, direct feedback, and open discussions