Emplois de software engineer fullstack – Paris

Checkout.com is seeking software engineers who bring fresh ideas and a curious nature, ready to work in an engineering environment building products that support the company’s strategic goals. You’ll lead and drive projects across the full stack, design scalable microservices, mentor teammates, and deliver high-quality code with strong collaboration.This...

Scale-up healthtech basée à Paris, en forte croissance, avec un produit utilisé par un large public et une vraie exigence sur la qualité du produit. Équipe technique où le design compte autant que la rigueur du code. Le rôle Ici on cherche un profil costaud, capable de driver et pas seulement d'exécuter. Le poste est fullstack, front et back à...

Company DescriptionCheckout.com drives billions of transactions worldwide, enabling merchants to boost acceptance rates, reduce costs, and fight fraud. With a global presence, we focus on building next‑generation payment technology that delivers seamless customer experiences.Job DescriptionThe role is for a software engineer who will design, develop, test,...

Jimmy est la start-up française qui réinvente l’utilisation de la fission nucléaire pour décarboner la chaleur industrielle. Notre société conçoit et installe des générateurs thermiques chez les industriels afin de leur fournir de la chaleur décarbonée moins chère que celle des énergies fossiles. Ces générateurs sont fondés sur des...

Overview Build and ship the Windmill product end-to-end. The core challenge of building a developer platform: make it a delightful, intuitive experience while keeping the depth and power that developers expect. For example, Windmill parses your code to extract dependencies in Python/TypeScript, generates a lockfile, and extracts parameters from function...

Founded in 2020 and based in the heart of Paris, C12’s mission is to be at the center of one of the biggest technological breakthroughs of the century and change the course of history by building a universal quantum computer. At C12, we believe that achieving a true breakthrough in quantum computing requires rethinking the fundamentals. That’s why our...

TwoWay builds next-gen software with traders, for traders. We optimize trading workflows in financial institutions, transforming high-volume chat messages into structured market data in real time. This helps traders stay ahead of the market, cut operational risk, and save time — all while fitting into existing workflows and screen space. We collaborate...

What Do We Do?The shift to electric mobility is happening. Electra is accelerating it. Transportation is one of Europe's biggest sources of carbon emissions. Since 2021, Electra exists to make charging so simple that electric vehicles become the obvious choice for everyone. In 5 years, we've built a team of 300+ talents from 21 nationalities in 10 countries....

À proposWe're Ooak DataThe promise of AI agents is still unmet in complex, real-world business environments. Our mission is to make it possible for agents to reliably accomplish concrete and useful tasks.That's why we're building Alexandria, the world's largest library of real-world business workflow datasets. We're backed by Y Combinator (S26).Over the...

About Mistral Mistral 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...

À propos de ChapsVision En quelques années, ChapsVision s’est imposé comme un acteur européen de référence du Big Data et de l’Intelligence Artificielle. Notre ambition : permettre aux entreprises et aux organisations publiques d’exploiter leurs données de manière souveraine, sécurisée et intelligente. Depuis 2019 : +380 M€ levés auprès...

At Too Good To Go, we have an ambitious goal: to inspire and empower everyone to fight food waste together.More than 40% of all food produced in the world is wasted and retailers lose between 1-3% of their annual sales due to food waste, all of this waste has a huge impact on the health of our planet, with 10% of greenhouse gas emissions coming from food...

About Mistral Mistral 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...

Founded in 2020 and based in the heart of Paris, C12’s mission is to be at the center of one of the biggest technological breakthroughs of the century and change the course of history by building a universal quantum computer. At C12, we believe that achieving a true breakthrough in quantum computing requires rethinking the fundamentals. That’s why our...

Taux journalier (TJM): 550-600€ Mission du posteLa mission du poste est de faire de Flow le produit qui permet aux installateurs de devenir des champions locaux, avec une petite équipe tech sénior et rapide. Concrètement, nous menons deux chantiers en parallèle : Améliorer Flow : les partenaires attendent des évolutions : nouvelles features et...

🏢 À propos de Deskeo :En 2016, Frank Zorn et Benjamin Teboul créent Space Management (adossée à Newmark Group) avec une idée simple : réinventer la façon dont les entreprises vivent leurs bureaux. Cette idée donne naissance à Deskeo, et à une catégorie entière, le bureau opéré. Dix ans plus tard, elle va plus loin encore avec The Off, le...

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 ?...

Our Mission ⚖️ At Doctrine, we're building Europe's leading legal AI platform. Our belief? Law shouldn't be slowed down by repetitive tasks. It should be augmented by a specialised AI, designed to understand, analyse and produce legal reasoning at the highest standard. Our ambition? To help legal professionals work with greater reliability, efficiency...

The AI Backend Python Engineer (Staff) will provide technical leadership and define the architecture for backend systems that power the next generation of generative AI applications and large language model (This role focuses on driving strategic technical direction, designing platform-level solutions using Python, FastAPI, and AWS, and influencing...

CryptoNext Security in Paris is seeking an experienced software engineer to own features end-to-end across the stack using TypeScript, Node.js, React, and PostgreSQL. You will work with Product and QA, ship code early, and maintain secure, test-driven development while applying AI tools judiciously.The role is hybrid, with three days in the Paris office and...