Top Software Engineer Jobs in Paris

Join the Kubernetes product team to design and implement Kubernetes operators and addons, write high-quality Golang and Python code, debug issues, collaborate with a distributed team, mentor colleagues, and contribute to open-source integration and lifecycle management. Travel 2–4 weeks yearly for team events.

Build and maintain services and tooling to automate and secure network lifecycle across data centers. Implement CI/CD, staged rollouts, drift detection, observability pipelines, and APIs that integrate network source-of-truth with the cloud platform. Collaborate with network engineers and SREs to turn operational pain into production-grade automation and tooling.

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.

Work on Percona's open-source MongoDB operational tools (primarily ClusterSync and also Backup). Build and harden a Go-based replication engine handling initial cloning and continuous change streams, ensure correctness and fault tolerance at scale, support sharded clusters, optimize performance and resource usage, and maintain CLI/HTTP APIs, metrics, logging, tests, and packaging. Collaborate openly via GitHub pull requests and JIRA.

Develop core backend components for a blockchain network, focusing on networking, reliability, scalability, and high-quality software practices.

Develop and enhance front-end, server-side, and database applications, focusing on blockchain products while ensuring high performance and security.

As a Distributed Systems Engineer, you'll design and evolve LiveKit's core systems, implement resilient architectures, and enhance reliability and developer velocity, working on critical features in production environments.

Design and evolve core control, data, and observability systems; implement resilient region-spanning architectures; build libraries, protocols, and tooling; diagnose and harden critical paths using metrics, tracing, and testing; and shape platform capabilities across identity, scheduling, observability, and distributed state management.

The role involves designing and evolving core systems at LiveKit, implementing resilient architectures, and building tools to enhance system reliability and developer speed. Strong distributed systems experience and programming skills are essential.

Design, implement, and operate low-latency, highly available distributed control, data, and observability systems. Build region-spanning architectures, libraries, protocols, and tooling; diagnose and harden critical paths using metrics, tracing, testing, and real traffic; and shape platform capabilities around identity, scheduling, observability, and distributed state management.

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.

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

As a Senior Software Engineer, you will develop and manage a MongoDB solution on various platforms, ensuring reliability and security while contributing to a small team focused on impactful projects.

Build and improve Restream’s web interfaces and user-facing features for the AI Clips team. Design UI and business logic, collaborate with product designers, participate in code reviews, improve system reliability, and evaluate emerging technologies. The role requires strong JavaScript and TypeScript expertise, advanced React knowledge, CSS preprocessor experience, and familiarity with backend development, cloud infrastructure, containers, and continuous deployment.

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.

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

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

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.

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.

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.

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.

Design and maintain software systems for production infrastructure, automate deployments, manage fleet lifecycle, and implement CI/CD pipelines.