Top Software Engineer Jobs in Paris

Design, develop, and maintain scalable Python/Django backend services and RESTful APIs for financial products. Implement data models, write tests, optimize performance, ensure availability and security, participate in code reviews, and collaborate with cross-functional teams to deliver features and maintain production systems.

Design, implement, and operate scalable, multi-cloud distributed infrastructure and core services (TypeScript, Kotlin, Go). Optimize compute, storage, networking, and observability; support event-driven architectures; own end-to-end deployment and production reliability; implement disaster recovery and business continuity; collaborate with engineering, AI and security researchers to enable high-velocity product development.

Contribute to desktop and cloud reality-capture software by implementing features and bug fixes in C++. Write clean, tested code, assist debugging, participate in code reviews and Agile ceremonies, and use tools like Git, JIRA, and CI/CD while learning from senior engineers.

Build and iterate on practice-first learning experiences and AI tutor features. Contribute to architecture, review code, debug and unblock teammates, and collaborate closely with Product and Design to deliver high-quality learning products.

The Staff Tech Lead Software Engineer will drive technical vision, mentor teams, oversee code quality, and facilitate collaboration between engineering and product teams.

The Junior Software Developer will collaborate on a cloud-native monitoring stack, developing features, debugging, and representing Canonical at events.

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.

As a Software Engineer - Scraping Specialist, you'll create systems for AI to access web data, develop automation frameworks, and collaborate on real-time data integration for AI agents.

Develop high-quality code for Fusion, troubleshoot technical issues, engage in agile practices, and mentor junior engineers. Collaborate on design and architecture while ensuring security and best practices.

As a Fullstack Engineer, you will build core features of Dataiku DSS, focusing on data preparation, AI features, visualization, MLOps, and platform scalability while utilizing various technologies.

The Software Engineer will develop high-performance, real-time haptic systems, designing and optimizing engine components, and collaborating across teams for integration.

Lead design and ownership of shared libraries, Spring Boot starters, and agentic frameworks. Set standards for agent orchestration, evaluations, and guardrails. Mentor teams on Python-based agents (LangChain/LangGraph), drive adoption, prototype research directions, and improve developer experience across Kotlin backend and client libraries.

Design and evolve distributed backend architecture and build highly available, scalable microservices for a high-throughput real-time gaming platform. Develop APIs and data models, implement unit/integration/end-to-end testing, deploy and maintain services on AWS, and monitor, troubleshoot, and optimize performance while collaborating cross-functionally.

The Software Engineer will build database infrastructure, solve complex distributed systems challenges, and work directly with customers to provide technical solutions.

Build and maintain high-performance, production-grade UIs using React and TypeScript. Collaborate with backend engineers and product managers to design APIs, implement AI-driven features, and develop advanced, real-time data visualizations while contributing to the internal design system and optimizing performance.

Lead full‑stack development of OpenGRC: build correlation, verification, and quantification engines. Own end‑to‑end stack (React/TypeScript frontend, Node.js backend, PostgreSQL), define architecture, mentor the squad, and shape product direction for a data‑driven GRC platform integrated with CTI and OpenAEV.

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.

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.

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.

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

Build and operate production custody systems: signing service, key management, chain integrations, and transaction pipelines. Own end-to-end subsystems, integrate new chains, collaborate with cryptography on threshold signing and key recovery, write post-mortems, and produce clear async design docs and PRs.

Design, develop, and maintain high-quality web applications using CodeIgniter and PHP. Collaborate with cross-functional teams to define and ship features, ensure application performance and quality, identify and fix bugs, and maintain code quality and automation.

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

Develop and improve algorithms for automated treatment-planning software using modern C++ (C++17+). Work in an agile team, engage with clinical experts and product owners, design and implement complex algorithms, create prototypes, participate in architecture and code reviews, write tests and technical documentation, follow medical-device regulatory guidelines, mentor peers, and support production monitoring and maintenance.