Top Software Engineer Jobs in Paris

Develop and maintain RESTful microservices using Java 17 and Spring Boot. Implement SQL logic on PostgreSQL/Oracle, integrate messaging via RabbitMQ/Kafka, and use ELK for logging. Write unit and integration tests with JUnit, Mockito, and Spring Test. Collaborate on CI/CD and containerized deployments.

Build and enhance GraphAware Hume, a graph-powered analytics platform. Responsibilities include developing APIs, designing secure and scalable access-control systems, orchestrating workflows for graph analytics and real-time insights, optimizing application performance, contributing to architecture and technical design, and collaborating with distributed engineering teams.

The Backend Engineer will develop and maintain features for Restream web services, design backend APIs, ensure infrastructure resilience, and contribute to a collaborative team environment.

Develop and optimize Soroban smart contracts and integrate anchor services on the Stellar network for cross-border payment solutions. Collaborate with cross-functional teams, test and debug smart contracts, document development processes, provide technical support, and stay current with blockchain and payments technology trends to ensure secure and efficient implementations.

Implement and optimize EVM-compatible features, reduce gas usage, develop and test smart contracts, collaborate on Ethereum infrastructure, and provide technical support.

Build and maintain high-security mobile wallet apps using React Native, Swift, or Kotlin. Implement biometric authentication and secure key storage, collaborate with cross-functional teams, debug performance issues, and propose UX and security improvements.

As a Senior Software Engineer at Razer, you will develop high-performance C++ systems for real-time game data acquisition, event tracking, and video generation, while optimizing engine performance and ensuring system reliability.

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.

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.

Join the Non Human Identity Governance team to build NHI detection and remediation features. Write production backend code daily, own feature delivery, review peers' code, mentor junior engineers, and participate in cross-team design. Work on scalable distributed systems, task orchestration, and big data flows, integrating with ML and deploying on Kubernetes and cloud.

Build and maintain Discover features end-to-end, focusing on React/Redux frontend expertise and full-stack development with Node.js. Architect databases, collaborate with product/design/QA, write tests and clean code, drive AI-led improvements, optimize performance, and reduce architecture complexity.

Design, build, and maintain scalable back-end systems (PHP/Laravel/MySQL) and front-end features (React/TypeScript). Develop APIs, write unit tests, manage dependencies, contribute to architecture and code reviews, and apply AI-assisted development tooling to accelerate delivery while ensuring code quality and maintainability.

Develop, integrate and deploy PasqOS on QPUs: implement features and drivers, troubleshoot QPU systems, integrate with cloud and software ecosystem, optimize performance, and support deployment and testing.

The Senior Software Engineer will design and develop high-quality web and mobile applications, ensuring code quality while collaborating with product teams and mentoring junior engineers.

Build and ship secure, production-ready CI/CD and AI-integrated features end-to-end. Design, implement, and iterate on products (e.g., hardened GitHub Actions, agent features), work closely with Product and front-end teams, make architectural decisions, and extend Chainguard's agentic AI capabilities into customer-facing experiences.

Build and maintain user-facing features and interfaces for Restream web services. Design and implement UI and business logic, collaborate with product designers and engineers, perform code reviews, improve reliability and scalability, and evaluate emerging technologies.

As a Principal Software Engineer at Autodesk, you will shape technical direction, solve complex design automation challenges, and collaborate with cross-functional teams to deliver user-facing products. You'll work hands-on with cloud-based systems and drive architectural decisions, contributing to sustainable solutions in design.

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.

Senior backend engineer role to design, implement, and maintain scalable Ruby on Rails features. Lead architecture, participate across the SDLC, ensure reliability/security of customer-facing services, drive engineering best practices (TDD, code reviews, pair programming), and contribute to technical roadmaps in an Agile, high-growth environment.

Lead the design and development of Windows desktop applications, enforce best practices, collaborate on feature planning, and drive accessibility efforts.

The Senior Software Engineer will build and maintain foundational services and SDKs, collaborate with product teams, optimize functionality, and ship cloud functions using Kotlin.

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.

Dragonfly is seeking Software Engineers for various portfolio companies, focusing on crypto technologies. Engineers of all experience levels are needed across multiple stacks.