We are creating the freedom for SMEs to succeed by delivering Europe's leading finance workspace with banking at its core, augmented by financial tools. Qonto has grown to 1,700 Qontoers serving over 750,000 customers across 8 European countries. With 80+ nationalities, 45% women, of which 56% of women in our leadership team, diversity isn't a program; It's who we are.

We want people who experiment without waiting for permission, push AI beyond the obvious, know when to trust it, and when to question it. full-remote Join us as a Senior Full?Stack Engineer in our Identity Verification team to turn our KYC flow into a service that works with any provider, and to help more customers get from KYC started to KYC submission. 60% of your time goes on the backend, with the web as your second surface. This is mostly Ruby (90%), with some Go (10%) Improve KYC conversion: Work across backend and web on the path from KYC started to KYC submission, our main objective for the team.

Own the web side of provider integrations: Load provider SDKs in the browser, handle the errors they return, and keep the web part running as usage scales. Expect roughly half your time on web at first,



moving towards 30% as the work shifts to the backend.

Backend experience: You've built and run backend services in production, and you're at ease being backend?React on the web: You've shipped production web code with React, and you can handle maintenance and scaling work on an existing application. You'll own changes across backend and web, partnering with our staff web engineer on architecture and complex integrations. Ruby, or the will to learn it: Ruby experience is a plus, not a requirement.

You build infrastructure behind KYC, the first step every customer takes with Qonto, and you see its effect in the conversion numbers.

A platform other teams build on: KYC is our first internal customer, with other teams potentially following, such as Security for password reset checks. Nicola spent four years at Satispay, progressing from Backend Engineer to Engineering Lead, managing 6–8 engineers. DATA RETENTION] By applying, you agree that Qonto processes your personal data to assess your application. Your data are kept for up to 2 years in our candidate pool.

📌 Senior Full-Stack Engineer (Ruby, Reactjs) (Madrid)
🏢 Qonto
📍 Madrid