Leon Kiefer is a Technical Lead of Infrastructure and Platform based in Berlin with 11 years of experience building cloud-native microservices, DevOps platforms and AI/ML applications for healthcare at voize (YC W22). He combines formal training in software engineering (MSc/BSc, Universität Stuttgart) with hands-on Linux administration and platform ownership, having run e‑learning systems and production servers as a HiWi. A passionate open-source contributor and LPIC-1 certified engineer, he has notable IoT and embedded systems work—contributing IR decoding, Somfy RTS support and CI/CD improvements to the widely used OpenMQTTGateway. Leon designs and implements infrastructure as code, end-to-end deployment pipelines and resilient architectures, and brings an architect’s rigor (iSAQB certified) to pragmatic, production-focused delivery.
10 years of coding experience
Master of Science - MS, Computer Software Engineering, 1,2, Master of Science - MS, Computer Software Engineering, 1,2 at Universität Stuttgart
MQTT gateway for ESP8266 or ESP32 with bidirectional 433mhz/315mhz/868mhz, Infrared communications, BLE, Bluetooth, beacons detection, mi flora, mi jia, LYWSD02, LYWSD03MMC, Mi Scale, TPMS, BBQ thermometer compatibility & LoRa.
Role in this project:
Embedded Systems Engineer / IoT Developer
Contributions:14 reviews, 14 commits, 15 PRs in 2 years 1 month
Contributions summary:Leon primarily contributed to the functionality of the OpenMQTTGateway project, focusing on enhancing communication protocols and device compatibility for home automation. They added features related to Infrared (IR) data decoding and sending protocols, especially for various AC units. Significant work was done integrating and configuring the ZactuatorSomfy module, enabling control of Somfy RTS devices. The user also addressed bugs and improved the system by refactoring code, updating the prepare deployment script, and integrating GitHub Actions for CI/CD.
GitHub Action for downloading GitHub release archives
Contributions:3 releases, 13 commits, 3 PRs in 8 months
downloadinggithub-release
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Leon Kiefer - Technical Lead Of Infrastructure And Platform