Backend Engineer

As a Backend Engineer, you will be part of a team of 180 highly skilled back-end engineers from all over the world. You will work closely in cross-functional teams to shape our finance solutions. You will also take part in the direction of our banking product, manage how we will handle our ever-growing user base needs, and deliver high-quality products in a fast-paced environment. As a Backend Engineer at Qonto, you will

• Design, develop, deploy and maintain new and existing applications to reach the team's goals and to meet the stakeholders' needs Produce and ship high-quality, well-documented code

• Co-own our services architecture, resilience, scalability and robustness, with respect to Domain-Driven Design principles

• Grow on technical leadership & mentorship of other engineers Our primary languages are Go and Ruby for backend, React.js for frontend, and Kotlin and Swift for our mobile apps. Our platform runs on a Kubernetes cluster hosted on AWS, with PostgreSQL as our database of choice. We're also using Kafka for our event-driven architecture and ELK for logging and auditing, among many other tools, services, and applications. What you can expect: our methodology, the Qonto Way

• We highly value the analysis phase on software delivery. We're putting a heavy emphasis on upfront technical designs, team reviews, and smart slicing. You can expect to focus on quality, which we believe drives the velocity our customers need.

• We think success comes from a space where you're given time, support, and autonomy to improve yourself, our systems and our processes. Our lean toolbox enables you to monitor your constant improvements (Kaizen, PDCA) in a collaborative way with your peers and manager.

• Our engineers, working in cross-functional teams, dedicate themselves to one feature at a time.

• We value the efficiency and productivity of our engineers: that's why we provide each of our engineers with licenses for Cursor or Copilot, enabling them to focus on what they do best - coding innovative solutions Your future team As a Backend Engineer at Qonto, you'll join a team 450-strong Product Engineering department, organized into cross-functional teams (CFTs) across five domains: Customer Lifecycle, Banking & Payments, Financial Tools, Accounting, Systems & Monetization. You'll work in a CFT of 6-8 backend engineers, owning your product scope and collaborating closely with mobile, frontend teams, and product managers to deliver impactful solutions.

• Technical Expertise: You have strong experience as a software engineer, and you have been exposed to architectural patterns of large, high-scale web applications.
• Problem solver: You are a pragmatic and product-driven engineer, with an interest in solving problems and delivering value to customers;
• Impact maker: You want to help build an innovative product used by tens of thousands of users and leave your mark;
• Quality-driven: You follow best practices regarding code quality, testing, and code reviews;
• Curiosity: You are a curious and open-minded engineer eager to learn;
• Team player: You have good communication skills, are comfortable working in a team, and can easily work with non-technical colleagues;
• Languages: You are fluent in English. At Qonto we understand that true diversity isn't just about ticking boxes on a hiring checklist. Apply regardless of the boxes you tick! Who knows? You may have the missing piece of the puzzle we've been searching for all along.

Our journey: Founded in 2017 by Alexandre and Steve, Qonto has grown to 1,600+ Qontoers serving over 600,000+ customers across 8 European countries. We have been profitable since 2023, and we are just getting started. Our beliefs: We hire for skills and potential. 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've built a discrimination-free hiring process because the best teams are built on merit. AI at Qonto: AI is deeply embedded in how we work (here) - Every Qontoer gets unlimited access to the best AI tools. We want people who experiment without waiting for permission, push AI beyond the obvious, know when to trust it, and when to question it.