Top Software Engineer Jobs in France

Design and evolve systems for Motion's infrastructure, focusing on reliable and secure operations across APIs, Linux systems, and cloud environments with a focus on hands-on coding and engineering judgment.

Own and productionize core localization systems (state estimation, mapping, calibration). Build monitoring, diagnostics, validation, and deployment tooling. Integrate sensors, tune performance, run regression testing, and iterate using data from real autonomous airport operations to enable driverless capability.

The Senior Software Engineer will lead the development of a Python-based platform, enhancing a mature system for open-source collaboration, mentoring teams, and driving innovation.

As a Senior Software Engineer, you will lead your team in shipping features, making technical decisions, and mentoring others to scale products effectively.

As a Senior Software Engineer, you'll build product features using JavaScript/TypeScript, contribute to system design, and lead technical initiatives. Collaboration with engineers is key, and you will also work on Python services when necessary.

The Senior Software Engineer will develop and enhance a SaaS platform, focusing on backend and frontend development while collaborating on architecture and supporting team members.

Responsible for installation, configuration, testing, customer support, and validation of software and network solutions in semiconductor cleanroom environments, including extensive travel for customer support.

As a Go Software Engineer for Identity Management, you will design, implement, and enhance identity management solutions, collaborate with a distributed team, and contribute to the development of authentication and authorization systems.

Lead design and development of low-level control software and hardware abstraction layers for quantum experiment workflows. Architect services, APIs, drivers, and synchronization for real-time, low-latency hardware interactions. Collaborate with physicists, drive platform roadmap, and mentor engineers to ensure scalable, reliable experiment and calibration systems.

Design, develop, and maintain high-quality software solutions in C++ for financial services, collaborating within Agile teams and mentoring others.

Build and enhance customer-facing applications and APIs, integrate external financial and compliance systems (KYC, banks, AML), and develop monitoring and alerting. Work across frontend and backend in a small engineering team to deliver production-grade fintech infrastructure.

Design, develop, and test embedded firmware in C for ARM Cortex devices. Integrate wireless protocols (Wi‑Fi, Bluetooth, Zigbee, 802.15.4, sub‑GHz) and TCP/IP. Improve performance for memory/power constraints, enforce coding standards, implement CI/CD, participate in code reviews, mentor junior engineers, and collaborate with hardware, QA, cloud, and product teams.

Develop and maintain services for HPC Research Platform, focusing on scalability and reliability of compute workflows while collaborating with researchers.

The Senior Software Test Engineer will lead test engineering initiatives, design automated test frameworks, and advocate for quality within cross-functional teams.

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 design and implementation of an automation platform to orchestrate package creation, test generation, and image builds. Build LLM-integrated tooling, write production Go for CLIs and services, develop test generators and validation frameworks, and drive roadmap and engineering quality across a small team.

The Principal Software Engineer will define technical standards for the XTM Integration team, drive integration architecture, oversee open-source contributions, and write production code while leading by example.

As a Senior Software Engineer at Rewardful, you'll improve infrastructure, optimize performance, implement scalable solutions, and develop new features for our SaaS affiliate management platform.

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.

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.

Senior Software Engineer to design and implement C++/Python software, accelerate workloads with CUDA, develop and maintain Linux kernel modules and system services, optimize system and GPU performance, manage Linux systems, mentor junior engineers, and integrate AI technologies across products.

Build core components of a diagnostic and personalization platform: backend data pipelines, frontends, services for genomic data ingestion, ML model integration, APIs, and cloud infrastructure. Collaborate with product and ML teams, iterate on prototypes and MVPs, and make architectural decisions supporting scalability and reliability.

Design and build the on-prem software stack for ModelVault appliances: containerized inference engines, model integration (LLMs/vision), deployment tooling, CLIs/GUI/APIs, OS and GPU setup, remote updates, telemetry, and collaborate with customers and founding team to iterate and scale the engineering org.

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