Top Software Engineer Jobs in France

Design, build, and maintain cloud-based data pipelines and infrastructure on AWS, integrating on-prem and cloud flows. Implement IaC, CI/CD, containerization, observability, and automation to ensure high-throughput, reliable data ingestion and processing for autonomous systems.

Design, implement, test, deploy, and maintain cloud-native full-stack features. Collaborate with cross-functional teams, follow software engineering best practices, participate in code reviews, troubleshoot issues, and leverage AWS and event-driven architecture to build scalable, maintainable applications.

Design and build highly scalable, low-latency market data systems and APIs. Implement backend services, influence architecture, maintain test coverage, participate in code reviews, troubleshoot incidents, and occasionally be on-call. Work spans streaming and historical market data endpoints and developer-focused API improvements.

Design, develop, and implement AI test infrastructure and long-term validation strategy. Build automation and CI/CD tests, validate AI interactions across Sonos devices and apps, collaborate cross-functionally, and report to the QA manager.

Develop user interfaces for a tactical Command and Control system, focusing on real-time data visualization, video streaming, and mission planning tools while ensuring optimal performance and user experience.

Join Reedsy to develop and improve a collaborative word processor, adding features and ensuring performance and security for users.

The Senior Software Engineer will develop solutions at the intersection of product, engineering, data, operations, and AI, focusing on enhancing user experience and operational efficiency for restaurants.

Lead and implement architecture and code for resilient backend systems, embedded hardware, secure networking, and ML inference at the tactical edge. Mentor engineers, run code review and RFC processes, optimise performance and reliability, and drive cross-team technical initiatives from prototype to production.

As a Senior Software Engineer, you will solve problems, design, develop, and test code while collaborating with teams and mentoring others. You'll focus on delivering pragmatic solutions and contribute to tech growth.

Lead and design scalable backend systems, set technical vision, drive large cross-team projects, raise engineering standards, mentor engineers, and influence company-wide architecture and processes to support product growth and AI initiatives.

Design and implement core Web3 protocol features and secure smart contracts in Solidity. Integrate blockchain solutions with cross-functional teams, ensure scalability and performance, stay current on EVM internals, conduct code reviews, and mentor junior engineers.

Design and implement a video processing engine, develop a cross-platform rendering engine, integrate systems, and optimize performance while collaborating with other engineers.

The Senior Software Engineer will focus on backend development, designing and maintaining APIs and services, collaborating on features, and enhancing integrations at Motion.

The Senior Software Engineer will focus on infrastructure, reliability, and platform engineering, designing scalable systems, managing CI/CD processes, and evolving observability and incident response protocols.

Design and implement real-time telemetry pipelines and fault-tolerant integration layers between IT and OT systems for datacenter power and grid-aware workload control. Own architecture and delivery of safe, reliable control systems from edge to control plane.

Senior full‑stack engineer responsible for building customer-facing and internal analyst tools, designing and maintaining APIs, contributing to AI initiatives, making architecture decisions, conducting code reviews, and shipping production‑grade features using modern web and DevOps practices.

Design, build, and operate data infrastructure to process massive event volumes into reliable, low-latency analytics and data products. Own real-time and batch services, platform tooling, observability, cost and performance optimization, on-call incident response, and cross-team stakeholder collaboration to enable analytics, ML, and reporting at scale.

Lead architecture and backend development for the vCluster platform by designing and implementing Kubernetes-native solutions in Go, owning features end-to-end, contributing to open-source, and solving deep systems challenges around multi-tenancy, isolation, and GPU infrastructure.

Architect and build core backend components of the vCluster platform by working deeply with Kubernetes internals. Write high-performance Go code, take end-to-end ownership from design to release, contribute to open-source projects, and solve complex systems and multi-tenancy problems for GPU and Kubernetes-based infrastructure.

Lead rapid prototyping, architectural research, and complex technical projects for a Kubernetes virtualization platform. Partner with the CTO to shape product direction, integrate new technologies, and occasionally engage customers to translate needs into engineering solutions. Provide technical leadership beyond coding and mentor the team.

Work directly with founders to build and iterate the platform’s initial features, owning full-stack development, architecting core infrastructure, and turning customer feedback into production-ready functionality for MCP servers.

Work directly with founders to build and iterate on an MCP hosting platform. Ship full-stack features using TypeScript (React, NestJS), design scalable foundations, translate customer feedback into product, and operate independently in a fast-paced startup.

First software developer to design, build, and maintain core SaaS platform features; define system architecture for scalability; own projects end-to-end; ensure code quality and security; collaborate with founders to align technical work with the companys energy-transition mission.

As a Senior Software Engineer, you will develop secure, scalable medical imaging platforms, architect distributed systems, and work with AI diagnostic tools.

The Principal Engineer will lead the development of a Test Systems Software platform by designing architecture, writing code, managing operational requirements, and guiding a team to ensure robust software for testing environments.