backend engineer

Niulix is seeking a founding engineer to own the most critical backend systems across platforms used by 150k+ users, including B2C, B2B and mobile apps.You will oversee anti-fraud, automated QA, and high-volume payout workflows, maintain scalable architecture, and ship fast with reliability.Required: a proper prépa, a full 3-year engineering degree from top...

A leading technology company in Nice is seeking a Mid-Senior level IT professional to design and maintain configuration tools. Candidates should have a strong background in Go, Docker, and experience with Bash and Python. The role involves collaboration with cross-functional teams and ensuring advanced network feature integration. This full-time position...

ENJAILLE recherche un expert développeur backend .NET/C# pour accompagner l’adoption des outils d’Agentic AI Coding et contribuer au delivery applicatif dans un contexte d’entreprise internationale.Dans le cadre d’un programme de transformation, vous formeriez les équipes, organiseriez des sessions de pair programming augmentées par IA et...

Escape Technologies is seeking a Senior Backend Engineer to join our Paris team. You will partner with security researchers to translate research into scalable production solutions and own critical backend components.You will work with Python and Go, deployed on Kubernetes, handling large-scale scans, data processing, and distributed workflows. The role...

En tant que Staff chez Matera, tu contribues à définir la vision technique backend et à l'appliquer : tu fixes les standards, tu améliores la DevX, tu inities les chantiers structurants pour qu'on construise un produit de meilleure qualité et avec une meilleure vélocité. Ton impact se mesure à l'échelle de toute l'équipe technique. Concrètement,...

Partnered recherche un Senior développeur Backend .NET pour rejoindre notre équipe de développement et être un relais du Head of Back. Vous concevrez, développerez et maintiendrez les composants backend des applications.Vous travaillerez avec la squad, PM et les parties prenantes pour livrer des solutions de qualité. Maîtrise C#, ASP.NET, SQL et...

AboutSwan is Europe’s embedded banking specialist. We empower software companies to embed banking features like accounts, cards, and payments directly into their products, under their own brand.Swan processes over €1.5 billion in monthly transactions for more than 150 companies—like Pennylane, Indy, Agicap, Libeo, and Lucca. Founded in 2019, the...

About Swan Swan is Europe’s embedded banking specialist. We empower software companies to embed banking features such as accounts, cards, and payments directly into their products under their own brand. We process over €1.5 billion in monthly transactions for more than 150 companies, including Pennylane, Indy, Agicap, Libeo, and Lucca. Founded in 2019,...

À propos Spacefill édite la 1ere plateforme de 3PL management en Europe. Elle permet aux entreprises de collaborer avec de multiples entrepôts, via un middleware et une plateforme web pour gérer les stocks, les commandes et les données des entreprises. Fondée en juin 2018 par Maxime Huzar, Quentin Drillon et Gustave Roche, Spacefill a pour ambition...

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...

Leonar is seeking a Senior Backend Developer based in Paris or Bordeaux to scale our systems and accelerate product development. You will work closely with the Head of Software on deep technical ownership, architecture work, and high-impact feature delivery.The role involves contributing to a fast-moving tech team that deploys daily, handles thousands of...

GetVocal AI in Paris is hiring a Senior AI Software Engineer to design and operate production systems for real-time conversational AI. You will build low-latency backend services, craft event-driven architectures, and orchestrate AI agents with LLM APIs.Expect to work across distributed systems and modern AI tooling. You will collaborate with AI, product,...

ixolabs.ai is seeking a backend professional to develop or evaluate backend implementations and architectural choices using their expert stack. You will assess data access, interfaces, error handling, performance and security against real-world service requirements.You will also produce clear technical explanations and review findings, linking implementation...

Scale-up internationale en forte croissance, cette entreprise développe une plateforme SaaS innovante dédiée à l’optimisation des infrastructures solaires à grande échelle. Sa mission est claire : accélérer la décarbonation de l’économie mondiale grâce à la technologie, en combinant data, automatisation et software avancé. Leur produit phare...

Description : L’ISCOD, spécialiste de la formation en Digital Learning, recherche pour son entreprise partenaire, service de transcription IA, un Software Engineer IA Backend en contrat d'apprentissage, pour préparer l’une de nos formations diplômantes reconnues par l'Etat, de niveau 5 à niveau 7 (Bac+2, Bachelor/Bac+3 ou Mastère/Bac+5). Optez pour...

A tech company based in Paris is looking for a Senior Rails Engineer to lead the Ruby on Rails framework of their B2B SaaS product. You will be responsible for the backend systems, crafting APIs, and ensuring product scalability. Ideal candidates will have extensive experience in backend development and a knack for building complex dashboards. This role...

Ne pas postuler si vous ne correspondez pas aux prérequis de la fiche de poste :) CDI idéalement. Possibilité de freelance si très bonne correspondance avec l’offre. 🎯 Contexte du poste Au sein de l'équipe ITO AI Platform / Agentic CoE, le Senior Backend AI Engineer intervient sur la construction de la couche d'orchestration permettant de faire...

XXII déploie CORE, sa plateforme de vision par ordinateur, sur plus de 30 sites.Celle-ci analyse des flux vidéo, issus de caméras, en temps réel pour en extraire des informations directement actionnablesChez XXII, on s’attaque à des problèmes techniques exigeants, sur un marché où 95 % des données vidéo ne sont jamais analysées.La particularité...

Join Cafeyn: Where Innovation Meets Inspiration Cafeyn is more than a platform— it is transforming the way people access and experience content. Since 2006, we’ve grown in a fast-evolving market, adapting to become a leading digital reading service with over 2 million users worldwide. Cafeyn gives readers unlimited, personalized access to thousands of...

Niulix is seeking a founding engineer to own critical systems across multiple platforms serving 150K+ users and overseeing live production.You will tackle anti-fraud, automated QA, and a heavy backend as we scale to 1M+ users and daily payout flows across 100+ countries. The ideal candidate completed a prépa plus a 3-year engineering degree from top...