Top Software Engineer Jobs in Paris

Join a team of engineers to work on a complex codebase while utilizing MongoDB, Node.js, and Vue.js. Responsibilities include developing and improving functionalities, collaborating within squads, and onboarding new engineers.

As a Website Software Engineer, you will develop and optimize website features, support marketing initiatives, and contribute to architectural decisions while working with a creative team.

Build end-to-end full-stack AI features on a Ruby on Rails backend and React frontend, design and run experiments (A/B tests and AI evaluations), implement AI infrastructure for reliable LLM inference, and iterate quickly to scale production-ready LLM-powered products.

The Senior Software Engineer will solve scaling bottlenecks, deploy new features, manage production issues, design scalable architecture, and collaborate on project planning.

Design and build scalable serverless solutions on GCP using Node.js, React and Next.js. Map large PIM datasets to retailer formats, own microservices and deployments, champion TDD and observability, mentor engineers, and collaborate cross-functionally to deliver customer-focused sales enablement tools.

Lead design and delivery of AI-powered visualization and investigation features using LLMs. Build reliable, explainable systems combining deterministic product capabilities with generative models, drive prompt/context engineering, evaluation frameworks, and cross-team product-focused technical leadership and mentorship.

Build and own internal AI platform surfaces and infrastructure end-to-end: Cortex UX, platform services, deployment pipelines, observability, governance, and developer tooling to enable teams and agents to build and operate AI-powered features.

Design and build a scalable forecasting platform handling diverse data types; develop real-time exploration tools, secure APIs and SDKs; implement monitoring, alerting, and data scraping automation; integrate ML models into pipelines; iterate from user feedback; and mentor early engineering hires.

Lead architecture and development of a low-latency trading stack focused on data infrastructure and control workflows. Design high-performance datastores, build a data platform for quantitative research, create control tools to safeguard operations, own systems end-to-end, and mentor engineers while collaborating closely with researchers.

Join the Core Web Frontend team to build and maintain frontend frameworks, libraries, tooling and developer experience. Design and implement the integration layer between UI components and backend services, drive best practices, improve performance and CI/CD, and support other teams with modular, secure, and scalable frontend solutions.

Build and modernize backend services for partner integrations and administrative workflows. Design, implement, test, deploy, and monitor cloud applications using Node.js/TypeScript on AWS. Collaborate with product, QA, and senior engineers, leverage AI tools to accelerate development, and ensure application quality, security, and scalability.

As a Software Engineer at QRT, you'll develop automation tools, improve observability, and collaborate with teams on scalable trading systems.

Hands-on senior full-stack engineer for eFront Invest (BlackRock Aladdin). Design, implement, and maintain cloud-deployed .NET features; improve platform architecture, CI/CD, testing, monitoring, and incident investigations; diagnose and modernize legacy components; collaborate with global engineering, product, and QA teams to ensure data quality and operational reliability.

Lead design and development of low-level Linux instrumentation and runtime security using eBPF and kernel APIs. Build reusable monitoring for process, file, and network visibility, ensure performance and reliability, drive feature delivery and testing, and provide technical leadership across product and engineering teams.

The Software Engineer will design and develop software architectures, solve complex challenges, lead technical directions, and collaborate with different teams to optimize efficiency and impact.

As a Staff Mobile Engineer at Joko, you will lead mobile application development using React Native, focusing on scalability, performance, and user experience while collaborating with cross-functional teams.

As a Software Engineer for Internal Tools at Prelude, you will design and build internal tools, develop AI workflows for automation, and collaborate with various teams to streamline operations and improve productivity.

As a Senior Software Engineer, you will enhance the REDAPL platform, leading initiatives in data ingestion, processing, and supporting infrastructure-related projects while mentoring other engineers.

Design, develop, and maintain software applications, write efficient code, collaborate with teams, conduct testing, and provide technical support.

Lead organization-wide software and AI engineering strategy, architect large-scale data and LLM integrations, drive deployment and CI/CD practices, mentor technical leaders, and convert prototypes to production while ensuring AI evaluation, observability, and high code quality.

As a Senior Software Engineer, you'll enhance REDAPL, lead projects, focus on data ingestion and query pipelines, and ensure platform reliability.

Responsible for developing GPU Monitoring features and maintaining eBPF functionality, investigating production issues, and shaping architecture within the Datadog Agent.

Develop software to enhance consultant productivity, create SaaS products, design architecture for data processing, and assess technologies.

As a Software Engineer at Bitstack, you will build scalable products, work in a cloud-native environment, and collaborate with teams to push the product forward while ensuring compliance and security.

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.