qa engineer backend

Decathlon Digital recherche un Senior Software Engineer (f/m/d) en CDI basé à Lille. Vous contribuerez au développement des features Cart, Checkout et Wishlist et œuvrerez sur une architecture API et microservices robustes.Travaillant en mode Agile, vous participerez au cycle produit, tests de performance, documentation et environnements de production,...

White Circle is seeking a Product Engineer, Backend (Rust) to design and scale real-time policy checks within a cutting-edge AI safety platform. You’ll own Rust services end-to-end, from API design and schema to deployment and observability.The role demands production Rust (Tokio), PostgreSQL, and async design, plus strong system-design skills. Hybrid...

Nuitée is hiring Senior Product Engineers to join Connect, the heart of our platform where hotel supply becomes a single clean API for partners. You’ll own backend delivery from idea to production, balancing latency, cost, and data integrity in a fast-paced environment.You’ll tackle hard engineering problems like multi‑supplier pricing, data...

Atolls in Paris is seeking a Senior Backend Software Engineer to design, develop and maintain web apps using Node.js, TypeScript and NestJS. You will work with front-end, design, engineering and product teams to deliver robust, scalable services across the full stack.You should have 6+ years of software development experience, strong knowledge of AWS...

Pretto, fintech spécialisée dans le crédit immobilier, recrute un développeur backend senior pour piloter les intégrations bancaires et l’envoi des dossiers jusqu’à la banque et la réponse. Vous serez l’expert technique des flux et l’architecte des solutions, en lien avec les équipes banques et produit.Avec ≥5 ans d’expérience, vous...

Datadog seeks a senior backend engineer to own and grow the observability space from our Paris hub. You will design, build, and operate backend systems applying signal finding models at scale for internal data science teams and external customers.You will own Kafka and Flink end to end, collaborate with data scientists to create robust production workflows,...

We are bsport. The place to be! bsport is an all-in-one platform combining boutique fitness and advanced technology. Our platform helps our partners manage their bookings, payroll, marketing and more, to streamline operations and boost their commercial success. Since we launched in 2019, we have already achieved the following: We’ve built a community of...

Leader français de la prise de notes par IA, nous comptons plus de 100 000 utilisateurs dans plus de 50 pays et déployons aujourd'hui notre plateforme à l'échelle européenne. Notre différence : une IA performante et souveraine, hébergée en Europe, conforme RGPD, capable de répondre aux exigences des grands comptes et du secteur public. Nous...

À propos de l’équipe ✨Constituée aujourd’hui d'environ 70 talents tech (Engineering managers, Développeurs Front-end, Back-end et Fullstack, SRE, Architect cloud, QA Engineers, Salesforce), l'équipe à pour mission de :Développer des features / produits innovant·esContinuer de mettre en place les meilleures pratiques de développementAssurer la...

👫 About the team At Equativ, we’re on a mission to develop advertising technologies that empower our customers to reach their digital business goals. This means that we rely on massively scalable, widely distributed, highly available, and efficient software systems; the platform deals with over 6 million requests per second (+500 billion/day) handled...

Secteur : Logiciel / Énergie / Électrique Nous recherchons un Ingénieur C++ Backend pour rejoindre une équipe travaillant sur une solution logicielle innovante dédiée à la conception et au dimensionnement d’installations électriques. Votre mission Vous interviendrez au sein de l’équipe Backend, sur le moteur de calcul Cloud Computation Services...

What You'll Do: The Product Engineering team builds the products that make Criteo tick: from developing industry-leading machine learning techniques to building high scale/low latency real-time applications (over 5M QPS, handling over 300 Bn HTTP requests daily), to delivering first-class client interfaces, both API and UI, with forward-thinking UX at their...

Upsun is a cloud application platform used by hybrid teams worldwide. We design scalable billing backends in Go, focusing on reliability, security, and observability.You will own complex features end to end, collaborate across Finance, Product, and Support, and mentor peers in a distributed, remote-first culture. As a Senior Software Engineer, you will work...

Shift Technology in Paris is seeking a .NET C# Software Developer to build foundational services, support other squads, and monitor the SDK. You will design complete application designs and implement scalable components that improve efficiency across the platform.You will work with C#/.NET, Azure, and APIs, with bonus exposure to Cosmos DB, Service Bus, and...

Rejoignez une fintech française en forte croissance, spécialisée dans la construction d’infrastructures de paiement innovantes pour des marchés en pleine expansion. Depuis 2019, l’entreprise développe des solutions permettant l’interopérabilité de multiples moyens de paiement (mobile money, cartes bancaires, virements, crypto…), utilisées par...

MARSS Group seeks an experienced Software Engineer to join the backend team in Nice. You will focus on developing backend applications in alignment with projects and the roadmap, contributing to system architecture modernization and mentoring colleagues.You should be proficient in Go and familiar with Python, Docker, and Linux environments, with a strong...

Roundtable is building the gold standard for private equity by shipping a highly type-safe, scalable stack in a hybrid Paris/Toulouse setup. You will join a senior 10-engineer team, shaping domain-driven fintech workflows and production reliability under founders CTO and CPO guidance.You’ll own critical features from zero-loss ownership tracking to...

Mayday recherche un Senior Back-end Engineer pour concevoir et faire évoluer le back-end de sa plateforme RAG. Vous aurez une ownership réelle sur l’architecture et la production, travailler avec l’équipe Data et rapporterez à des leads techniques.La stack principale est Python avec FastAPI, Elasticsearch, RabbitMQ et Celery. L’objectif est...

A cutting-edge technology firm based in France seeks a Staff Software Engineer to enhance its autonomous trading platform. The role involves building backend services for trading agents in Go and Python, managing critical infrastructure, and ensuring real-time performance. Ideal candidates have strong backend engineering skills, Kubernetes experience, and...

Alma is hiring an experienced Backend Engineer to build the payment infrastructure of tomorrow. You will design and develop APIs powering payments for thousands of merchants and millions of consumers across Europe, while raising the bar on quality, security, and performance.You will lead reliability, own architecture decisions, and collaborate with Product...