Top Software Engineer Jobs in France

Build and operate end-to-end product features across a Go backend on Google Cloud Run and React frontend. Develop LLM-powered analysis and recommendations, evaluate nondeterministic outputs, design prompts, and create independent connector services for external data sources. The role includes production ownership, system design, customer feedback, experimentation, code reviews, and collaboration with senior engineers.

Build and maintain full-stack web features and microservices for a cloud-native healthcare platform. Develop production RAG pipelines and LLM applications for genomics interpretation, including prompts, structured outputs, evaluation, citation verification, and guardrails. Lead design and code reviews, mentor engineers, prototype new products, and collaborate with Product, QA, Architecture, and PMO while meeting regulatory needs.

Build and ship end-to-end features for Akeneo Supplier Data Manager across data-processing pipelines, backend services, and TypeScript/React frontend systems. Help process large, messy supplier catalogues using deterministic workflows and LLM-based extraction and classification. Own features through production monitoring and support, participate in customer discovery, collaborate across the Product Cloud, and develop engineering skills through pairing, code review, and mentorship.

Join a team of engineers to work on a complex codebase while utilizing MongoDB, Node.js, and Vue.js. Responsibilities include developing and improving functionalities, collaborating within squads, and onboarding new engineers.

As a Website Software Engineer, you will develop and optimize website features, support marketing initiatives, and contribute to architectural decisions while working with a creative team.

As a Software Engineer for Internal Tools at Prelude, you will design and build internal tools, develop AI workflows for automation, and collaborate with various teams to streamline operations and improve productivity.

Software Developer Interns collaborate on designing, developing, testing, debugging, and maintaining applications. They write documented code, participate in code reviews and brainstorming, resolve defects, and learn software development tools, frameworks, methodologies, and industry practices while working alongside experienced developers.

Design and develop Marketplace platform features, maintain APIs, build OS image and packaging tools, automate image and container manufacturing, and manage application artifacts. Support external publishers, ensure artifact security through CI/CD and scanning, contribute to architecture, and collaborate with product and engineering teams on innovative technical initiatives.

Develop and maintain scalable, secure back-end systems, APIs, and related components. Contribute to technical design, code reviews, versioning, documentation, testing, performance optimization, and agile development processes. Monitor emerging technologies and collaborate across teams to improve the product roadmap. The role is fully remote within France and requires French and English proficiency.

Develop and own real-time gimbal control and GNC software for custom microcontrollers and embedded Linux platforms. Build diagnostic and PC tooling, analyze telemetry, support calibration and performance investigations, and lead flight-test preparation and field evaluations. Collaborate with software, GNC, mechanical, hardware, and industrialization teams while defining robust software architecture and mentoring junior engineers.

Develop and maintain scalable release automation for Firefox, including build, test, and deployment pipelines running tens of thousands of daily tasks. Improve developer experience, collaborate with distributed engineering teams, conduct code reviews, maintain existing tools and codebases, and respond to critical service outages during business hours. The role requires object-oriented programming experience, preferably in Python, cloud exposure, cross-platform development, and shell scripting.

The Software Engineer will develop high-performance, real-time haptic systems, designing and optimizing engine components, and collaborating across teams for integration.

As a Software Engineer, you will manage data collection, enhance cloud infrastructure for data ingestion, and collaborate with AI Scientists to improve data quality and efficiency.

Design and build a scalable forecasting platform handling diverse data types; develop real-time exploration tools, secure APIs and SDKs; implement monitoring, alerting, and data scraping automation; integrate ML models into pipelines; iterate from user feedback; and mentor early engineering hires.

As a Software Engineer, you'll design and develop software solutions, solve technical problems, lead projects, and collaborate with product and operations teams.

Build and maintain Ergodic AI’s AI platform across back-end and front-end systems. The role involves developing with Python web frameworks and JavaScript/TypeScript, integrating with client technology stacks and workflows, applying AI, ML, and LLM concepts, and contributing to DevOps, cloud deployment, testing, and infrastructure practices. As an early-stage hire, the engineer will help shape the product and solve complex data and AI challenges.

Own financial partner integrations across crypto and fiat payment rails, including APIs, webhooks, reconciliation, and production hardening. Build automation for compliance, back-office operations, trading, treasury, liquidity routing, and risk controls. Establish engineering standards for idempotency, audit trails, fail-closed design, exact decimal arithmetic, and durable workflows. Mentor engineers and maintain secure, reliable systems handling real-money movement.

Owns field deployment of defense software by integrating platforms with customer systems, developing connectors, configuring and customizing applications, managing on-premises releases, troubleshooting operational issues, and documenting deployments. Works directly with customer technical teams, validates end-to-end data flows, and feeds reusable integration needs back to the core product team. The role requires substantial domestic and international travel and autonomous work in mission-critical environments.

Own backend services, APIs, infrastructure, and frontend dashboards for AI-powered healthcare voice agents. Design reliable, secure, scalable systems serving thousands of medical practices, deliver features from specification through production, improve developer tooling and observability, build modular multi-client architecture, and launch voice agents at scale. The role also contributes to engineering culture, code quality, mentorship, and future team growth while collaborating closely with founders, design, sales, support, and operations.

As a Senior Software Engineer, you'll enhance REDAPL, lead projects, focus on data ingestion and query pipelines, and ensure platform reliability.

Build and architect high-performance advisory brokerage services for block trading, portfolio management, and IRA products. Develop frontend and backend systems, databases, and distributed architectures with strong concurrency, scalability, availability, and low-latency performance. Design order management and financial transaction systems while contributing across the technology stack in an early-stage environment.

Join a small agile full-stack team building cloud-native applications to accelerate medicine manufacturing and supply. Design, deliver, and run scalable, maintainable microservices; translate requirements into performant code; own technical decisions; apply CI/CD and DevOps practices; use IaC for cloud deployments; collaborate with product and data teams and promote engineering best practices.

Build and ship full-stack features for a data intelligence SaaS platform, spanning backend services and frontend interfaces. Use AI coding assistants to accelerate development while applying sound engineering judgment. Participate in architecture discussions, code reviews, testing, incident response, troubleshooting, documentation, and knowledge sharing. Partner with product managers to translate requirements into technical solutions. The role emphasizes SaaS architecture, AWS cloud fundamentals, Docker, Kubernetes, CI/CD, agile delivery, autonomy, and production ownership.

Design, implement, and review high-performance data infrastructure services and clients. Apply coding, testing, and system design best practices; collaborate with stakeholders to address technical and business needs; and investigate, debug, and resolve system issues. Work with large-scale data systems involving real-time publish-subscribe architecture, sharded databases, caching, multithreading, asynchronous I/O, and big data technologies.

Design and operate customer-facing networking APIs, Python orchestration control planes, and automation that configures routers across global points of presence. Build resource allocation, job queues, retries, rollback, reconciliation, BGP, WireGuard, GRE, NAT, firewall, DNS, cloud interconnect, and Envoy xDS integrations. Own production monitoring, incident response, billing synchronization, API compatibility, and network configuration drift detection across application and infrastructure layers.