Senior Node.js Backend Engineer – Secure REST APIs

Kleep is seeking an engineer to design, automate and operate our AWS infrastructure, working directly with the CTO to scale a fast, secure platform for fashion e-commerce. The stack includes TypeScript, React on the frontend and Node.js/Python on the backend, hosted on AWS.You will own the full lifecycle of the platform, contribute to CI/CD pipelines,...

About Air Apps At 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 offices in...

Join a team of engineers and cryptographers building the infrastructure behind the next generation of financial systems.We’re hiring a Senior Software Engineer to build and scale the core backend services that power our platform. You’ll design and operate APIs, microservices, and data systems that handle wallet operations, transaction processing, and...

Senior Software Engineer Location: Paris HQ Department: Tech & Product Required Experience: ≥5 years Contract: Permanent & full time Responsibilities Develop scalable, high-performance web applications for a seamless e-commerce checkout experience. Work across both frontend and backend, ensuring high-quality code and system reliability. Collaborate with...

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...

Description de l’emploi Le contenu du poste est libellé en anglais car il nécessite de nombreuses interactions avec nos filiales à l’international, l’anglais étant la langue de travail. This job offer is accessible to all, regardless of gender. Job title: Senior Software Engineer Location: Paris - Hybrid (3 days a week onsite, 2 days work from...

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...

WALLIX Group, a cybersecurity software publisher, is the European specialist in privileged account governance. Responding to regulatory developments and cybersecurity issues that affect all businesses, WALLIX solutions protect against cyber threats, theft and data breaches related to stolen credentials and misappropriated privileges. Listed on Euronext...

Role SummaryWe are seeking passionate and skilled software engineers to join our team. As a Backend Engineer, you’ll contribute to the development of the core systems powering our three main products, AI Studio, Le Chat & Mistral Code, shaping how users and developers interact with our AI platform at scale. You’ll work on building reliable,...