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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior / Staff Backend Engineer - remote friendly - **Company:** GAINGELS QONTO LLC - **Location:** Paris, United States (Remote available) - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Amazon Web Services, Architectural Patterns, Software Quality, Code Review, Databases, Cursor, Ember.Js, PostgreSQL, Ruby, Service-Oriented Architecture, Systems Integration, Web Applications, Data Logging, Swift (Programming Language), Backend, Kotlin, Event Driven Architecture, Kubernetes, Apache Kafka, Front End Software Development, Domain Driven Design - **Published:** September 10, 2026 - **Apply:** https://arc.dev/remote-jobs/j/redirect/n9h1s9645b ## About the Role * Experience: As a software engineer, you have solid experience in working on user-facing products and have had exposure 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. ## Description _Join us as a Backend Engineer to craft polished user experiences, highly scalable APIs and robust banking services, all to help create the finance solution all businesses love. 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, EmberJS 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 350-strong Product Engineering department, organized into cross-functional teams (CFTs) across five domains: * Customer Lifecycle, focusing on account management and compliance, * Business Account, enhancing payments and financial tools, * Systems & Monetization, optimizing integrations and pricing, * Financial Tools, supporting cash flow management and bookkeeping. * Regate by Qonto, providing collaborative accounting solutions for accounting firms through automated pre-accounting, invoice processing, and seamless integration with major accounting software. You'll work in a CFT of 4-6 backend engineers, owning your product scope and collaborating closely with mobile, frontend teams, and product managers to deliver impactful solutions., _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. __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. __By applying, you agree that Qonto processes your personal data to assess your application. Your data is kept for up to 2 years in our candidate pool. Read our Privacy Notice for full details. _On average, our hiring process lasts 20 working days. More information on our candidate journey _here _ Your security matters to us Recruitment scams are on the rise. Keep in mind, we will never work with third-party platforms or agencies that request payment from candidates. If you receive a suspicious message claiming to be from Qonto, please report it right away (support@qonto.com)