Top Software Engineer Jobs in France

Design, architect and deliver iOS features used by hundreds of thousands of users. Lead complex projects end-to-end, collaborate with PMs, designers and backend engineers, own metrics and outcomes, prioritize security, performance and maintainability, and help shape mobile strategy.

As a Senior Software Engineer, you'll develop, test, and deploy features impacting global revenue, manage high-throughput systems, and collaborate across teams.

As a Senior Software Engineer, you'll solve engineering challenges, collaborate on solutions, mentor teams, and contribute to the business understanding.

Design and implement backend applications, modernize system architecture, mentor junior engineers, collaborate cross-functionally, estimate delivery timelines, and develop robust mission-critical software interfacing with diverse hardware in constrained environments.

Build and scale the internal developer platform: create tools, services and automation (CI/CD, canaries, feature flags, access workflows) using IaC (Pulumi/Python) and Kubernetes to enable safe, fast shipping. Drive platform initiatives, mentor teams, lead AI tool adoption for engineering, participate in on-call and design/code reviews, and ship major improvements across the organization.

Lead optimization of concurrent systems, scale backend microservices, and collaborate with developers and engineers on deployment for retail solutions.

Design, implement and operate the Core platform layer: identity, provisioning, RBAC, APIs, notifications, billing, and observability. Migrate customers to a platform architecture, scale GitHub check runs, redesign plan architecture, decompose a large Django monolith, and improve onboarding and integration health checks. Own end-to-end delivery, mentor peers, and drive quality standards.

Lead technical vision and architecture, mentor engineers, drive cross-team initiatives, and design scalable, high-performance systems. Collaborate with product and design, perform hands-on development and code reviews, integrate ML and security features, ensure code quality, and address large-scale scanning, deployment, and reliability challenges in cloud/containerized environments.

Develop, test, and integrate embedded software for satellite propulsion electronic subsystems. Build test and validation tools, collaborate with hardware teams, implement radiation-mitigation strategies, document designs, and execute verification/validation within aerospace quality standards and Agile development cycles.

Develop and validate embedded firmware for a wearable neural interface: sensor acquisition, timing, buffering, communication, hardware bring-up, and optimization for latency, power, reliability, and signal quality. Build tests and tools, stream neural data to the platform, and coordinate with electrical engineering, ML, suppliers, and manufacturing to move prototypes to production.

Own embedded software for compute modules from bare board to secure, booting Linux. Maintain BSPs, boot chain, kernel drivers, device trees, and SDKs; perform board bring-up, hardware validation, debugging, verification, documentation, and cross-functional integration. Mentor junior engineers as needed.

Develop cloud-native production systems that process large data volumes. Engage in backend development with Rust and frontend with Angular. Collaborate on product development.

As a Senior Software Engineer, you'll design and build scalable market data systems, improve API architecture, and enhance overall system performance, contributing to Alpaca's infrastructure for trading financial assets.

Build and maintain core post-trade clearing systems and securities-finance infrastructure. Own projects end-to-end, design reliable distributed services and RESTful APIs, integrate new clearing partners, participate in on-call rotation, and improve systems to enable new product offerings.

Lead the development of software solutions for a logistics platform, overseeing technical strategy, mentoring teams, and ensuring high-quality software delivery.

Build and maintain scalable backend systems that integrate real-time data, machine learning, and optimization models to optimize renewable and battery storage operations. Own architecture through deployment and maintenance, collaborate with engineers and data scientists, troubleshoot performance issues, and improve monitoring, reliability, and system performance.

The role involves leading software development for Network Diagram capabilities, designing technical solutions, optimizing algorithms, collaborating cross-functionally, and mentoring engineers to uphold standards.

Lead architecture and system design as a staff engineer, manage critical microservices, and influence engineering practices in fintech/blockchain.

The Senior Software Engineer will develop and manage backend systems for digital payments, focusing on microservices, API design, and integration with banking systems.

As a Senior Backend Engineer, you'll develop systems for massive traffic and scaling, maintain Rust components, and collaborate on feature development and continuous improvement, taking ownership of your work.

As a Senior Software Engineer at Bigblue, you will design scalable systems, improve engineering standards, and lead software development efforts while ensuring high-quality production code.

Join a small team to develop and operate Scaleway's non-relational database products (Redis, MongoDB). Ensure high-performance, stable production, deploy to new regions, perform code reviews, write docs, follow Agile, and collaborate cross-functionally.

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 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.

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.