About Jonathan
French
Native or bilingual
English
Fluent
Experience
- IndependentC++ Software EngineerSOFTWARE PUBLISHINGMay 2025 - Today (1 year and 1 month)Paris, France• Worked with multiple clients on short-term contracts, focusing on business requirements and rapid delivery.• Designed and implemented a low-latency networking core service in C++20 using Boost (Asio, Beast) GCC, CMake, CPM, clang-tidy and clang-format, serving as the foundation for a future real-time market visualization platform.• Built scalable connection management and routing pipelines capable of handling thousands of concurrent TCP/HTTP clients with minimal overhead.• Delivered the core infrastructure for a future market connector, enabling order routing, internal matching, and session handling.• Designed CI/CD pipelines and infrastructure with AWS(ECS, EC2, Aurora RDS, Route 53, KMS) DevOps, improving DX and reducing deployment times.
- PinckItC++ Software Engineer & CTOSOFTWARE PUBLISHINGNovember 2023 - May 2025 (1 year and 6 months)Paris, France• Led the development of a mobile app for discovering nearby restaurants through geolocated short videos, reaching 7K+ users, 80K+ views, 5K+ likes, and 1.5K+ map opens to boost localrestaurant discovery.• Developed a C++ media processing service using FFmpeg for transcoding, cppkafka for job consumption, libpqxx for PostgreSQL state updates, and AWS SDK for S3 integration.• Built a Rust (Tokio) backend for orchestration, job scheduling, state management, and real-time SSE updates, implementing a split-and-stitch transcoding system that increased upload success rates from 65 % to 95 % and enabled adaptive HLS delivery.• Deployed cost-efficient infrastructure with Docker, NGINX, AWS, and GitLab CI/CD, enabling reliable deployments and scalable production operations.
- CardiawaveC++/Qt software developmentSOFTWARE PUBLISHINGNovember 2022 - May 2023 (6 months)Levallois-Perret, France• Contributed to the development of Cardiawave's non-invasive ultrasound therapy for calcific aortic stenosis• Worked with a stack including MSVC C++, Qt QML, PlantUML, CMake, Boost, GoogleTest, and GitLab• Developed a shared XML-to-PDF library, designed a data visualization interface, and led the• Led the PoC for a medical data visualization app integrating signal graphs, device metrics, and treatment timelines, validating technical feasibility and driving further R&D investment.
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Education
- Engineering Degree (Bac+5)EFREI Paris2024Engineering Degree (Bac+5)
- Scientific BaccalaureateLycée Léonard De Vinci2018Scientific Baccalaureate