Top Software Engineer Jobs in France

Build and maintain North's Agents & Automations platform: design and ship frontend and backend features, execution engine, integrations, debugging, observability, evaluation, and feedback systems to enable reliable AI-powered workflows.

Build and maintain Dashlane's production LLM inference stack for the AI Advisor: serving infrastructure, prompt orchestration, model evaluation, RAG/fine-tuning, integrations, monitoring, scalability, cost optimization, and modernizing server-side identity and onboarding systems. Collaborate cross-functionally and coach peers on secure, production-ready human-in-the-loop AI solutions.

Design, build, test and operate cloud-native services powering Hive's smart home products. Own services end-to-end, collaborate with product and engineering teams, apply TDD and CI/CD, and modernise platform capabilities on AWS to deliver scalable, reliable solutions.

Design, implement, and lead scalable software solutions for R&D workflows. Drive technical decisions, mentor engineers, set engineering standards, collaborate across teams, and apply cloud, microservices, API, CI/CD, and DevOps best practices to accelerate drug development.

Develop high-quality software solutions, participate in Agile meetings, debug and validate code, and contribute to design discussions in a collaborative environment.

Design, develop and validate IP and SDN network architectures and software components (controllers, VNFs, orchestration). Implement automation, testing, and performance validation; collaborate with multidisciplinary teams including ML; produce technical documentation, reviews, demonstrations and contribute to IP (patents/publications).

The Senior iOS Engineer will lead engineering decisions, actively ship code for the iOS app, enhance architecture, and engage in product discussions within a fast-paced, remote team.

The Senior iOS Engineer will lead engineering and product decisions, enhance the iOS app, and ensure an excellent user experience. Responsibilities include actively shipping production code, participating in product discussions, and maintaining app architecture.

As a Software Engineer in the Platform team, you will develop and maintain robust APIs, oversee backend API landscape, and collaborate on B2B solutions while ensuring exceptional performance and user experience.

The Software Engineer will design and maintain backend APIs, oversee API landscape, and collaborate with cross-functional teams to align the architecture with product strategy.

As a Software Engineer for Data Infrastructure & Acquisition, you will manage data collection for model training, extend cloud infrastructure, and collaborate with AI teams to improve dataset quality.

The Backend Software Engineer will design and implement communication systems for tactical C2 applications, ensuring seamless data flow and fault tolerance in challenging environments.

The role involves designing and implementing scalable full-stack solutions using OpenAI's APIs, collaborating with customers, and driving project success. Requires extensive customer-facing experience and engineering expertise.

The Java Software Engineer will design and deliver robust components for Doctolib, collaborating with teams to improve the platform's performance, security, and usability while taking a leadership role in implementations and enhancements.

Build and own search and discovery features for practitioner matching at scale. Improve relevance, ranking, indexing pipelines, query performance and personalization. Make architectural decisions, deliver high-impact features, ensure code quality and testing, and mentor teammates in an agile environment.

The Software Engineer at Sanofi will design software solutions, lead projects, mentor junior engineers, and ensure best practices in software development while working in a dynamic, innovative R&D environment.

Build ML prototypes and data pipelines, collaborate with researchers and product engineering to integrate models into Fusion, containerize and deploy applications, implement best practices, and document architectures to accelerate research-to-production workflows.

Six-month end-of-study internship on the Core Product Listeners team to implement and improve accessibility across Deezer apps. You'll add missing accessibility features (screen readers, voice assistants), rework UI/UX per audit recommendations, help define future accessibility guidelines, and collaborate with Design, Product, QA, Frontend, iOS and Android teams to make the product more inclusive. Role is based in Bordeaux.

Six-month end-of-study iOS engineering internship focused on improving accessibility across Deezer apps. Implement missing accessibility features, enhance screen-reader support, adapt UX/UI per audit recommendations, define accessibility guidelines, and collaborate with Design, Product, QA, and mobile teams.

Six-month, on-site Frontend Software Engineer internship focused on improving accessibility across Web, Android and iOS apps. Implement missing accessibility features from an audit, rework UI/UX, add support for screen readers and voice assistants, define accessibility guidelines, and collaborate with design, product, QA and platform teams under senior engineering mentorship.

Build and scale backend services, integrations and AI-powered workflows for an insurance-focused product. Own features end-to-end, improve system reliability, performance and observability, work with unstructured data and production constraints, and collaborate closely with founders and users to turn feedback into shipped product improvements.

As a Software Engineer, collaborate to research, develop, and deploy impactful features and enhancements. Maintain code quality and monitor production systems, while working cross-functionally to frame and execute projects that align with business needs.

Develop and optimize Soroban smart contracts and integrate anchor services on the Stellar network for cross-border payment solutions. Collaborate with cross-functional teams, test and debug smart contracts, document development processes, provide technical support, and stay current with blockchain and payments technology trends to ensure secure and efficient implementations.

Implement and optimize EVM-compatible features, reduce gas usage, develop and test smart contracts, collaborate on Ethereum infrastructure, and provide technical support.

Build and maintain high-security mobile wallet apps using React Native, Swift, or Kotlin. Implement biometric authentication and secure key storage, collaborate with cross-functional teams, debug performance issues, and propose UX and security improvements.