qa engineer backend

The Product Crew, c’est la communauté de référence pour les talents Product & Tech en France. En 5 ans, on a accompagné +20 000 talents dans leur carrière et travaillé avec +1 000 startups et scale-ups de la scène tech française et européenne. Tout en animant un écosystème riche en événements, talks et mentoring.Notre différence : on ne fait...

About Air AppsAt Air Apps, we believe in thinking bigger - and moving faster. We’re a family-founded company on a mission to create the world’s first AI-powered Personal & Entrepreneurial Resource Planner (PRP), and we need your passion and ambition to help us change how people plan, work, and live. Born in Lisbon, Portugal, in 2018 - and now with...

About MistralMistral provides full-stack AI solutions: from frontier models to developer tools, applications, and compute. We partner with enterprises tackling the hardest problems across high-stakes industries like finance, manufacturing, defense, healthcare, and the public sector, co-creating customized AI systems that they can run on their terms.We are a...

À propos d’UpcitiUpciti développe des capteurs de vision embarqués à faible consommation et une infrastructure cloud souveraine permettant de comprendre et piloter la ville en temps réel.Nos solutions combinent edge computing, computer vision et data engineering pour fournir une vue globale et actionnable des environnements urbains : mobilité,...

Role OverviewAs a Senior Backend Engineer at CardNexus, you'll play a pivotal role in designing and implementing the architecture for our all-in-one TCG platform. As an early employee, you'll have the autonomy to shape our systems and infrastructure, ensuring scalability, performance, and reliability for a high-traffic marketplace. We're fostering a culture...

About the roleWe’re looking for a top‑tier Backend Engineer to join our tech team and work hand‑in‑hand with our CTO, Denis Charrier, and the rest of the tech team.Your core responsibilities will be to:Build and operate large-scale, distributed systems powering AI-ready web searchDevelop APIs, data pipelines, and microservices for indexing,...

About the Role Based in Paris or Bordeaux, the future Senior Backend Developer will be a key player in our Tech team. Working closely with our Head of Software, you’ll help us scale our systems and accelerate our product development. This role is a mix of deep technical ownership, hands-on architecture work, and high-impact feature development. Inside our...

We’re a team of experts pushing the limits of what’s possible, united by our common goal to unlock true freedom through digital ownership, making technology accessible for all. We believe in a world where users, creators and enterprises manage their value with ownership and freedom. Our curiosity drives us to innovate, empowering individuals on a global...

About The Role Based in Paris or Bordeaux, the future Senior Backend Developer will be a key player in our Tech team. Working closely with our Head of Software, you’ll help us scale our systems and accelerate our product development. This role is a mix of deep technical ownership, hands-on architecture work, and high-impact feature development. Inside...

About CarCutterAt CarCutter, we are redefining automotive sales with AI-powered image technology that helps dealerships and marketplaces sell more vehicles, faster.Our platform transforms the vehicle photography workflow with hyper-realistic 3D backgrounds, interactive 360° spins, precise cut-outs, grounded shadows, and consistent branding. By integrating...

TLDR: We're looking for a Product Engineer (Backend – Rust) to own and evolve the core systems that power AI safety at scale – building APIs that handle hundreds of millions of requests, real-time policy enforcement, and high-throughput data pipelines.About usWhite Circle is an AI Safety company building the safety, reliability, and optimization layer...

Please note that the positions are based in Paris, France — relocation and visa support is provided if required.      THE BEST WORK OF YOUR CAREER Trade Republic is the largest savings platform in Europe — we operate in 18 countries, serving +10 million customers who trust us with over €150B in assets. But we’re striving for more. We have a bold...

Design and implement robust, scalable, and secure backend services for AI-powered productsWork closely with data scientists and ML engineers to integrate models into production systemsBuild and optimize APIs, microservices, and data pipelines for real-time and batch processingEnsure low-latency inference, efficient model deployment, and resource...

We’re a team of experts pushing the limits of what’s possible, united by our common goal to unlock true freedom through digital ownership, making technology accessible for all. We believe in a world where users, creators and enterprises manage their value with ownership and freedom. Our curiosity drives us to innovate, empowering individuals on a global...

Job Description We’re a team of experts pushing the limits of what’s possible, united by our common goal to unlock true freedom through digital ownership, making technology accessible for all. We believe in a world where users, creators and enterprises manage their value with ownership and freedom. Our curiosity drives us to innovate, empowering...

Licorne Society a été missionné par une entreprise pour les aider à trouver leur Lead Backend. À PROPOS DE L'ENTREPRISE L'entreprise est un réseau de laboratoires français en pleine croissance, issu d’un développement externe rapide. Avec plus de 900 sites et 12 000 collaborateurs, l'entreprise est un acteur incontournable de la biologie...

Job descriptionAbout PayflowsAt Payflows, we build software that helps large companies manage and automate their payment workflows. It’s not the flashiest part of a business, but it’s one of the most critical: invoices, approvals, payments, and controls. When these things slow down, the whole company feels it.But our ambition goes further than just...

About PreludePrelude is redefining how companies authenticate and onboard users - turning what's traditionally a cost center into a growth lever.Our flagship product lets businesses send OTP codes with the best price-to-conversion ratio on the market, dynamically selecting the most effective channel in real time (optimized SMS, WhatsApp, and more) while...

Notre ambition : proposer une plateforme fiable, performante, sécurisée et capable de scaler, dans un contexte réglementé et critique pour nos clients.Dans le cadre de notre développement, nous recrutons un·e Senior Backend Engineer, un rôle stratégique pour livrer des fonctionnalités robustes et durables, tout en prenant ownership de sujets...

As a Back End Developer at Earnix, you will be an integral part of our Engineering team, reporting to the Group Lead to Agentic AI. You will interact with AI Product Owners, Architects, and LLMOps to conceive technical solutions for our product, particularly by leveraging LLM capabilitiesWhat You'll DoDesign, develop, deliver, and document secure and...