I'm Jonathan, an Engineering Manager at Lumapps, with over 10 years of experience in IT. I'm passionate about building technology that makes a positive impact on people's lives.
I design projects with a low-tech approach, prioritizing data privacy and governance to create sustainable and ethical solutions.
- navitia-mcp-server - A Python MCP server enabling AI agents to interact with public transport APIs via Navitia.io
- med-assist - A AI-powered tool to help doctors summarize their patients' data
- castly - Send messages via email, SMS, or messaging apps using a single API—no matter the underlying provider.
- cerberus - Open-source CCTV solution with real time recognition.
- qualib.
I maintain several open-source libraries:
- carbem - A Rust library to gather emission data from cloud providers
- python-navitia-client - An unofficial SDK for Navitia.io
- airflow-providers-navitia - Apache Airflow provider for Navitia.io APIs
- airflow-providers-lokalise - Apache Airflow provider for Lokalise APIs
📦 You can find some of my libraries on PyPI (carbem, navitia-python-client) and crates.io (carbem)!
I actively contribute to projects like Boavizta API, which helps measure the environmental impact of digital services.
When I'm not coding, you'll find me:
- 🎩 Performing magic tricks and exploring the art of illusion
- 🚶♂️ Enjoying Nordic walking in nature
- 🎯 Playing board games with friends and family




