Emplois de devs software design – Paris

Cloudflare seeks an experienced software developer for its Application Security team in Paris. You will design systems, write code, and review RFCs and specs to advance secure software at internet scale.The role emphasizes Go or Rust, distributed systems, and devops tooling. You’ll own on-call responsibilities, collaborate with product managers, and help...

Lam Research in Paris seeks an experienced Computational Software Engineer to develop the next generation of physics-based semiconductor process simulation technologies. You will work at the intersection of software engineering, computational physics, and process technology to model plasma-surface interactions and to design high-performance simulation...

About Us Harmattan AI is a next-generation defense prime building autonomous and scalable defense systems. Following the close of a $200M Series B, valuing the company at $1.4 billion, we are expanding our teams and capabilities to deliver mission-critical systems to allied forces. Our work is guided by clear values: building technologies with real-world...

microTECH Global LTD in Paris, FR, is seeking a Senior Frontend Software Engineer for a hybrid role. You will define frontend architecture, design scalable GUI solutions, and lead reviews while mentoring engineers.The candidate must have 10+ years in software development and strong leadership capabilities, with fluency in French and English. The role...

Finq Tech Inc. in Paris, France seeks a Senior Staff Engineer who will own the architecture and evolution of the software infrastructure for our quantum processors.You will design foundations for error-correction frameworks, quantum compilation stack, data flows, storage, and automation pipelines to deploy production-grade QPU products in HPC, on-prem, and...

Air Apps seeks a Mobile Software Architect to lead scalable iOS architecture for our AI-powered PRP suite. This role emphasizes iOS with cross-functional Android knowledge, collaborating with product, design, and engineering teams to deliver robust mobile systems.In this strategic leadership position, you will define architecture, establish coding standards,...

United States Digital Space LLC is seeking a Backend Software Engineer with a strong security background to join our Paris-based product development team. You will design, build, and operate backend services powering security-sensitive features for B2B and B2C users.Based in Paris with a hybrid work model, you will collaborate with Product, Design,...

Alta Ares in France seeks an experienced Avionics Architect & Hardware Design engineer to design, develop, and integrate avionics subsystems for high-performance unmanned aerial systems. You will own schematic capture, PCB layout reviews, component selection, and define electrical architecture with focus on size, weight, power and cost.You will lead bench,...

Phoxygen in France is seeking experienced C engineers to customize and improve the Firefox OS Gecko layer. You’ll help the teams that develop devices used by hundreds of thousands worldwide, translating designs into high quality code and building robust C software for Gecko.You will work with project, design and business teams to ship new Gecko features,...

Who are we? Sonepar is an independent family-owned group and a world leader in the distribution of electrical equipment, solutions and related services to the trade . In 2025, Sonepar generated a turnover of €33.6 billion. With a presence in 40 countries and an extensive network of retail outlets, the Group is undertaking an ambitious transformation to...

ResponsibilitiesParticipate in design and architecture phasesDevelop new featuresDesign and optimize APIsParticipate in testing and QA phasesEnsure robustness, performance, and securityContribute to technical documentationWork in an Agile environmentQualificationsMaster's degree (Bac+5) or equivalentMinimum 3 years of experience in Java and/or Scala...

Fairly MadeFAIRLY MADE® is a French scale-up helping fashion brands become more transparent and sustainable. Its SaaS platform enables brands to take back control of their supply chain data and improve their environmental and social impact—not just on paper, but in practice.Founded in 2018 by Camille Le Gal and Laure Betsch, this fast-growing...

Construire des sites e-commerce utilisées partout dans le monde, sur une stack moderne et scalable, dans un environnement où la tech est au cœur de la stratégie.👉 Un quotidien fait de challenge, d'innovation et d'impact concret — dans une boîte qui mise sur la qualité, l'esprit d'équipe et l'envie de faire bouger les lignes.Concevoir, développer...

Harmattan AI is seeking a senior hardware engineer to own electronics design end-to-end for field-deployable launchers. You will design complete mixed-signal and power boards, optimize BOM, and lead bring-up and testing in rigorous outdoor environments.Key focus areas include 300 W DC/DC power design, thermal management, EMC/EMI, and robust environmental...

Resilience Care recherche un Expert en sécurité software pour travailler en binôme avec le Security Engineer. Vous analyserez les risques, prioriserez les vulnérabilités et travaillerez avec les équipes pour faire évoluer le produit en sécurité.Vous pilotez les corrections, mettez en place des solutions by design et assurez la conformité dans un...

Resilience Care recherche un Expert en sécurité software pour travailler en binôme avec le Security Engineer. Vous analyserez les risques, prioriserez les vulnérabilités et travaillerez avec les équipes pour faire évoluer le produit en sécurité.Vous pilotez les corrections, mettez en place des solutions by design et assurez la conformité dans un...

Robeauté is seeking a System V&V Engineer to define and lead verification studies across our medical device portfolio, ensuring regulatory compliance and engineering excellence. You will establish system-level verification strategies, oversee functional and safety testing, and ensure integration of hardware and software components.You will collaborate with...

Harmattan AI is seeking a Forward-Deployed Engineer for the Test Bench team to own production test stations on the factory floor, ensuring reliability and ergonomic design, and to act as the feedback channel between operators and the engineering team.You will lead hardware/software integration, drive continuous improvement, and collaborate with Automation...

About Us Harmattan AI is a next-generation defense prime building autonomous and scalable defense systems. Following the close of a $200M Series B, valuing the company at $1.4 billion, we are expanding our teams and capabilities to deliver mission-critical systems to allied forces. Our work is guided by clear values: building technologies with real-world...

About the TeamOpenAI’s Applied AI Engineering team helps organizations turn frontier AI capabilities into safe, reliable, and high-impact production systems. For software engineering organizations, this means helping customers adopt Codex and other OpenAI capabilities across the software development lifecycle—transforming how teams plan, build, test,...