Emplois de senior fullstack engineer – Paris

At Parallel, we build AI agents to help healthcare facilities automate their administrative processes and unlock additional revenue, starting with medical coding. Today, up to 25% of healthcare spending is lost in manual, repetitive administrative work. Legacy software hasn’t helped, it’s made things slower, more complex, and more frustrating for care...

ContextVizzia deploys connected cameras and smart infrastructure for 250+ local authorities across France. Behind the product that local cities see sits a less visible but equally critical layer: the platform that keeps the fleet running.ContextThe DLM team builds and maintains that layer. FleetAPI, drift detection, the status engine, internal tooling for...

At Parallel, we build AI agents to help healthcare facilities automate their administrative processes and unlock additional revenue, starting with medical coding. Today, up to 25% of healthcare spending is lost in manual, repetitive administrative work. Legacy software hasn’t helped, it’s made things slower, more complex, and more frustrating for care...

Who We Are CryptoNext Security is a deeptech startup specializing in post-quantum cryptography. Our solutions help businesses and institutions prepare for a future where quantum computers will challenge traditional data security. We work with leading clients in finance, defense, and telecommunications. Who We Are CryptoNext Security is a deeptech startup...

Who we areCryptoNext Security is a deeptech startup specializing in post-quantum cryptography. Our solutions help businesses and institutions prepare for a future where quantum computers will challenge traditional data security. We work with leading clients in finance, defense, and telecommunications.On a daily basis, you willOwn features end to end in...

Aircall is a unicorn, AI-powered customer communications platform used by 22,000+ companies worldwide to drive revenue, resolve issues faster, and scale customer-facing teams. We’re redefining customer communications by bringing voice, SMS, WhatsApp, and AI together into one seamless workspace. Our momentum comes from a simple idea: help teams work...

Sweep is looking for a Senior Fullstack Engineer (freelance)to work on our Sustainability Data Intelligence Platform. Climate change is the defining issue of our time. Sweep builds a sustainability data intelligence platform used by major enterprises to track greenhouse gas emissions, meet regulatory requirements, and drive real decarbonization. We're a B...

Localista is an AI-powered Omnichannel Conversation Suite to send personalized and targeted messages across preferred channels to thousands of guests at once.Job DescriptionWe are seeking an experienced Senior Fullstack Developer to join our team for an exciting web application project built using the Remix stack. The ideal candidate will be proficient in...

Who we are CryptoNext Security is a deeptech startup specializing in post-quantum cryptography. Our solutions help businesses and institutions prepare for a future where quantum computers will challenge traditional data security. We work with leading clients in finance, defense, and telecommunications. On a daily basis, you will Own features end to end in...

Senior Full-Stack Software Engineer Joining the Booking & Aggregators team, you will play a crucial role in shaping the success of our engineering department by providing a complete and customizable solution for managing bookings. Key Responsibilities Lead the design of microservices and event‑driven architectures for high‑volume data and balance...

Senior Fullstack Engineer (F/M/X)Full remote — Europe · Product & EngineeringWho are we?In 2017, after more than ten years in the lift industry across Europe and Asia, Benoît Dupont noticed a system stuck in its ways where speed takes priority over quality and frontline teams remain invisible.With Jade Francine, he founded WeMaintain to put technology,...

Notre mission Chez Doctrine, nous construisons le leader de l’IA juridique en Europe. Notre conviction ? Le droit ne doit pas être ralenti par des tâches répétitives. Il doit être augmenté par une IA spécialisée, conçue pour comprendre, analyser et produire du raisonnement juridique avec un haut niveau d’exigence. Notre ambition ? Permettre aux...

Morpho Labs in Paris seeks a seasoned architect to lead the development of DeFi products with a focus on performance and scalability. You'll oversee API strategies, optimize data systems, and empower teams to improve systems handling millions of requests. Ideal candidates have significant experience in fullstack development, TypeScript, and high-availability...

CryptoNext Security SAS is looking for a versatile software engineer to own features across the stack in TypeScript, Node.js, PostgreSQL, and React. You will work in a small, fast-moving team in Paris three days a week, with the rest remote, building secure APIs, interfaces, and data models.You will ship code with AI-assisted tools, design OpenAPI specs,...

Localista is seeking a Senior Fullstack Developer to join our team for an exciting web application project built with Remix, React, and TypeScript. You will design and implement features with an emphasis on performance, scalability, and a clean user experience.You will collaborate with product and backend teams to design database schemas, integrate with...

Doctrine is seeking a senior/fullstack engineer to help us build the first legal intelligence platform. You will join the Scribe team working with NodeJS, NestJS, React and NextJS to deliver a multi-document drafting tool and AI-assisted features.You will collaborate with product designers and managers to design excellent user experiences, build reusable...

Sweep is seeking a Senior Fullstack Engineer (freelance) to contribute to our Sustainability Data Intelligence Platform. You'll own features end-to-end, from database design and backend services to a React/TypeScript UI, shaping scalable data pipelines that help enterprises track greenhouse gas emissions and drive decarbonization.Requires 5+ years shipping...

Notre missionChez Doctrine, nous construisons le leader de l’IA juridique en Europe. Notre conviction ? Le droit ne doit pas être ralenti par des tâches répétitives. Il doit être augmenté par une IA spécialisée, conçue pour comprendre, analyser et produire du raisonnement juridique avec un haut niveau d’exigence. Notre ambition ? Permettre aux...

Doctrine recherche un développeur backend/fullstack passionné par l’IA et le raisonnement juridique pour rejoindre son squad Productivity. Vous concevez et développez des features produit de bout en bout, de la modélisation back-end à l’interface utilisateur, en ownership complet sur vos sujets.Vous intégrez des modèles d’IA et de LLM dans les...

A cybersecurity startup is seeking a Senior Fullstack Software Engineer to develop and maintain their AI-powered solutions in Paris. This role involves working on both backend (Python, Django) and frontend (React, TypeScript) aspects, and requires strong collaboration skills. The ideal candidate has over 5 years of experience in software engineering, a solid...