Top Software Engineer Jobs in Paris

Lead full‑stack development for Invisalign Palatal Expander treatment planning software. Design, implement, test, and maintain frontend and backend systems, CI/CD pipelines, and AWS infrastructure. Collaborate with multidisciplinary teams, follow medical device regulatory quality standards, write unit/integration tests in TypeScript, and support on‑call rotations.

Build and ship browser-based 3D interactive features using React, Three.js, and WebGL; integrate frontend with a C++ computational backend on AWS; use AI tools (Claude Code) to accelerate development; prototype AI-powered product features; and collaborate with clinical scientists, UX, ML engineers, and QA.

Develop, test, and deliver C++ features for a Windows-based 3D CAD system and supporting cloud services. Implement and prototype functionality, improve algorithms for performance, write unit tests, participate in code reviews, and collaborate with QA, product, and cross-functional teams to clarify requirements and ensure high-quality releases.

Design, implement, and optimize complex algorithms for automated treatment-planning software using modern C++ (C++17+). Participate in end-to-end development, architecture, prototyping, testing, documentation, and regulatory-compliant medical device software practices. Collaborate with clinicians, product, QA, and mentor engineers while improving reliability, performance, and production monitoring.

Develop and improve algorithms for automated treatment planning software for Invisalign. Participate in end-to-end development, design, prototyping, code reviews, testing, documentation, and production support. Collaborate with clinical experts and product teams, implement complex algorithms in modern C++17 with full test coverage, follow medical-device regulatory and quality guidelines, mentor other developers, and drive performance, reliability, and architectural improvements.

Lead end-to-end delivery of customer-facing features, designing and implementing 3D geometric and numerical algorithms in C++, contributing to Go backend services, leading architecture decisions, mentoring engineers, collaborating with QA/SQA, and maintaining regulatory traceability for medical software.

Lead design and execution of test plans for 3D CAD applications, APIs and AI features. Develop and maintain Python-based automated tests, manage datasets for AI, validate AI algorithms, set up CI, perform non-functional testing, analyze results, and collaborate with cross-functional teams to ensure production-ready releases.

Lead end-to-end design and delivery of customer-facing features in C++ and Go, implementing high-performance 3D geometry and numerical algorithms, owning architecture and technical decisions, mentoring engineers, coordinating cross-team dependencies, ensuring testability and regulatory traceability for medical software.

Develop and modernize clinical research software using C++ and Go; maintain legacy code, implement unit/integration tests, ensure regulatory compliance, collaborate with cross-functional teams, and use AWS, Kubernetes, Docker, and CI/CD in an Agile/Scrum environment.

Build and enhance customer-facing applications and APIs, integrate external financial and compliance systems (KYC, banks, AML), and develop monitoring and alerting. Work across frontend and backend in a small engineering team to deliver production-grade fintech infrastructure.

Develop and maintain services for HPC Research Platform, focusing on scalability and reliability of compute workflows while collaborating with researchers.

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

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.

As a Senior Software Engineer, you will build scalable distributed systems, improve developer experience, mentor peers, and lead incident responses.

The SDET will ensure quality for cybersecurity features by designing test strategies, building frameworks, and conducting various tests within a remote team setting.

As a Senior Software Engineer, you will own complex technical initiatives, drive architectural decisions, collaborate with teams, and ensure system reliability and maintainability in a production environment.

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.

Lead and own platform architecture across Infrahub ecosystem, implement high-impact architectural improvements, reduce technical debt, champion AI-first engineering, provide hands-on technical leadership, mentor engineers, and collaborate with product and leadership to ensure scalable, extensible systems.

Build and own end-to-end features across Sona’s platform using AI-assisted development. Direct and correct agent-produced code, work cross-functionally, engage customers in discovery and workshops, and contribute across scheduling, payroll, HR, and mobile domains.

Own and improve core scraping and job-execution infrastructure for high-throughput distributed workloads. Design fault-tolerant, observable systems, lead reliability and scaling efforts, define SLAs, run incident response, mentor engineers, and contribute to architecture decisions to maximize throughput and platform availability.

Build and architect Alpaca's advisory services (block trading, portfolio management, IRA). Design scalable, low-latency distributed systems, write full-stack code, optimize throughput, work with messaging systems and OMS, and implement high-availability, concurrency-safe solutions for financial trading/exchange workloads.

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.

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.

Design, build, and maintain RESTful, asynchronous microservices and APIs for internal and external customers. Optimize service performance at scale, deliver high-quality code reproducibly, and evolve the Service Delivery platform while collaborating across teams to drive features to completion.