About
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. We are proud to be rated 4.7 on Trustpilot, based on 60,000 reviews. Join us as Senior Backend Engineer to build the financial infrastructure that 750,000+ European SMEs depend on every day, from highly scalable APIs to robust banking services that handle real money, in real time, with zero room for mistakes.
Responsibilities
•Design, build, deploy, and maintain services handling real financial transactions, owning reliability in production, not just at merge time
•Co-own service architecture, resilience, and scalability with respect to Domain-Driven Design principles
•Grow in technical leadership: lead design discussions, anticipate risks, and mentor less experienced engineers
•Drive continuous improvement, from fixing flaky CI to running post-mortems and propagating learnings across the team
•Contribute to discovery, make technical decisions, monitor production performance, and steadily raise quality standards
Requirements
•Strong backend engineering experience with exposure to large-scale web application architecture and real production constraints
•You don't need to know our exact stack, but you transfer fast and are comfortable with similar technologies
•You write tests, set up monitoring, handle incidents methodically, and do root cause analysis
•You track impact after release, flag regressions, and improve what's in your scope without being asked
•You are comfortable working in squad teams with PMs, Designers, and other stacks, and you are fluent in English
Conditions
Our methodology, the Qonto Way:
•We value upfront technical design, team reviews, and smart slicing. Quality drives the velocity our customers need
•Autonomy: Our org assigns one team lead per project across stacks, giving your team a clear mission and full autonomy on how it operates
•Continuous improvement: Our lean toolbox, Kaizen, PDCA, lets you monitor and drive improvement collaboratively with your peers and manager
•AI tooling: Each engineer gets access to Cursor or Copilot, and we want people who use AI to raise the bar, not just to go faster
