Backend Engineer Jobs in Paris, EEA

We're a product-first team on a mission to raise the cybersecurity posture of every company in the world. Riot started with a simple idea: cybersecurity training was broken, and employees deserved better than annual hour-long videos no one watches. We built Awareness — chat-based, 4-minute courses delivered by Albert, our cyber instructor that employees actually look forward to hearing from. Think Duolingo, but for cybersecurity. That was just the beginning. Today, Riot is the employee security company, with products that cover every angle of how employees interact with security: Awareness — chat-based cybersecurity courses employees genuinely engage with, plus Studio, which lets security teams build their own custom training in minutes. Simulation — realistic phishing, smishing campaigns that train employees in a safe environment. Inbox — the AI-powered 24/7 cyber hotline for your security team. Employees report suspicious emails, ask questions about IT/Security, our AI classifies and prioritizes them, and your team responds — fast. Sonar — DLP for Google Drive and OneDrive that stops data leaks before they happen. Sonar audits sharing configurations, gives employees clear guidance on what's safe to share with which partners, and delegates everyday decisions to your team while you keep control. Slash — email security that catches the attacks your filter misses. Albert alerts employees inside suspicious emails before they click, combines semantic and technical signals to spot sophisticated threats, and instantly removes confirmed threats from every inbox in the company. Created in 2020, Riot has raised $45m from top-tier investors (Y Combinator, Base10, Funders Club, Frst Capital), and now protects more than 2,000,000 employees in over 2,000 companies — including Intercom, Deel, Deezer, L'Occitane, Lovable, and Veolia — around the world. Cybersecurity is everywhere. It impacts everyone, every day, and it's the number one risk to any organization. Yet the cybersecurity posture in most companies is still a disaster, and hackers are exploiting it by targeting the weakest link: employees. We're on a mission to fix that — at scale.

Our mission and customers: 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 4.8 on Trustpilot, based on 55,000+ reviews. Our culture puts customer satisfaction at the core of what we do, as proven by our Net Promoter Score of 75 (more about our culture here). 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. ------------------------------------------------------------------------------------------------------ 🌏 Location: You can choose to work in Qonto as long as you're living in (or willing to relocate to) either Germany, France, Italy, Serbia, or Spain. Mission: Join us as a Backend Engineer to build the financial infrastructure that 600,000+ 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.   ➡️ As a Backend Engineer at Qonto, you will 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 Our primary languages are Go and Ruby. Our platform runs on a Kubernetes cluster hosted on AWS, with PostgreSQL as our database of choice. We're also using Kafka for event-driven architecture and ELK for logging and auditing, among many other tools and services.   ➡️  What you can expect: our methodology, the Qonto Way We value upfront technical design, team reviews, and smart slicing, quality drives the velocity our customers need Our org assigns one team lead per project across stacks, giving your team a clear mission and full autonomy on how it operates Our lean toolbox, Kaizen, PDCA, lets you monitor and drive continuous improvement collaboratively with your peers and manager Each engineer gets access to Cursor or Copilot, and we want people who use AI to raise the bar, not just to go faster   ➡️  Your future team As a Backend Engineer, you will join one of Qonto's squad teams, each organised around a clear project mission, with one team lead and full ownership of a product scope. You'll be part of a 190-strong backend engineering community within a 500- Product Engineering department, working in squad teams of 5 to 10 people alongside Product, Design, and peers from Frontend and Mobile.   ➡️ About You Technical expertise: Strong backend engineering experience with exposure to large-scale web application architecture and real production constraints Stack fluency: You don't need to know our exact stack, but you transfer fast and are comfortable with similar technologies Quality-driven: You write tests, set up monitoring, handle incidents methodically, and do root cause analysis Ownership mindset: You track impact after release, flag regressions, and improve what's in your scope without being asked Team player: Comfortable working in squad teams with PMs, Designers, and other stacks; fluent in English

About BlaBlaCar BlaBlaCar is the world’s leading community-based travel app enabling 27 million members a year to carpool or travel by bus in 21 countries. Our team of 800 employees counts over 50 nationalities and is spread across our 5 global offices, 30% working fully remotely. We are looking for a confirmed Backend Engineer to join the Carpool Supply team at BlaBlaCar. As part of the Carpool pillar your mission will be to "Grow long-distance carpool usage worldwide, while developing its revenues." The Carpool Supply team manages the very heart of our product: the global carpool inventory. We build and operate the backend engine that handles millions of trips published, searched, and booked across our 22 countries. This is the core of how BlaBlaCar works.  Your role will be to contribute to facilitating the publication and management of drivers inventory, fostering carpool matching by providing a reliable access to the carpool supply and leveraging geographical intelligence for our backend teams. You will work within a multi-stack team of 6 backend & 3 frontend engineers. You will collaborate closely with the team's Product Manager and Product Designer to shape and implement features, and with our main consumers in the Demand squads to ensure seamless integration.

About BlaBlaCar BlaBlaCar is the world’s leading community-based travel app enabling 27 million members a year to carpool or travel by bus in 21 countries. Our team of 800 employees counts over 50 nationalities and is spread across our 5 global offices, 30% working fully remotely. Your Mission The Carpool Monetization team plays a key role at BlaBlaCar: designing and iterating on the models that monetize our core carpool activity. We are looking for a Mid-level Backend Engineer to help us build, scale and optimize our Monetization core services. You will work on the full feature lifecycle, from early discovery and technical design to implementation, testing, deployment, monitoring and continuous improvement. As part of a multi-stack team (3 FE engineers, 4 BE engineers, 1 PM, 1 UX Designer, 1 EM), you will contribute to initiatives such as subscriptions, freemium experience, insurance flows, ESC deployment (Energy Saving Certificates), and the rollout of monetization in new countries. Our tech stack includes: Java backend services exposed through REST APIs Kubernetes-based infrastructure managed with Terraform Event driven architecture with Kafka Datadog for application and infrastructure monitoring You’ll also have the opportunity to contribute to frontend developments depending on your interests. Your responsibilities Develop, maintain and monitor our Monetization core services Be responsible for the quality of the application, and contribute to improving it. Participate in design and code reviews Collaborate closely with frontend engineers, product managers, designers, and business stakeholders to define, develop, and deliver impactful features. Document your work and contribute to shared knowledge and technical standards Participate actively in continuous improvements across the team and codebase Your qualifications You have solid experience from companies with a strong engineering culture, within a growth context. You are fluent in Java and know frameworks such as Spring, Spring Boot, JUnit, and Mockito. You have hands-on experience with Git, Docker, Kubernetes, Kafka, Database at scales and monitoring solutions (e.g., Datadog). You have a good knowledge of service-oriented and event-driven architecture, and can determine when to apply a given architectural pattern. Strong communication skills, humility, and a collaborative mindset Ability to balance fast iterations with high-quality delivery You have a results-driven and impact-oriented mindset Fluency in English If you don’t meet 100% of the qualifications outlined above, tell us why you’d still be a great fit for this role in your application! What we have to offer Full remote possible in the country of employment 4 additional weeks on top of legal maternity/paternity leaves 50% healthcare coverage (Alan) Financial support for home office equipment Minimum 25 days holiday per year  Local meal plan policy (Swile card) 50% transportation paid (Forfait Mobilité Durable) Free unlimited carpooling & bus rides Personal growth via trainings, mentorship, and internal mobility programs Employee Stock ownership plan Regular team building events 1 day off per year to test our product Interested in joining the ride? a 45-min video-call with Maxime, Talent Acquisition Manager, to get to know you, understand your career expectations and answer your questions a 60-min video-call with Cyril, Engineering Manager, to discuss your experience and share more details about the team a 90-min  live coding session with Software Engineers. a 60-min system design interview with Software Engineers. a 30-min video-call with Sebastien, VP Engineering, for vision fit and rounding off the process Our hiring process lasts on average 25-30 days, offers usually come within 48 hours.

Backend Engineer, Paris at Airapps. Apply via Ashby.