Christian Ehlers
Engineering Director at SG Wireless
Eindhoven, North Brabant, Netherlands
Summary
👤
Senior🎓
Top SchoolChristian Ehlers is an experienced engineering leader with 20+ years of hands-on telecom and embedded systems experience and a decade in senior engineering management, currently directing engineering at SG Wireless from Eindhoven. He has led technical teams through productization of IoT and EMS devices at Pycom—rising from embedded developer to CTO—combining firmware-level expertise with global manufacturing and supply-chain know-how. His open-source contributions to Pycom’s MicroPython stacks (including LoRa, Sigfox and MDNS integrations) show deep proficiency in low-level network stacks and hardware integration. Known for turning complex networking and embedded requirements into robust, manufacturable solutions, he blends operational rigor from large telco projects with startup-speed product delivery. An uncommon strength is his ability to move fluidly between C-level strategy and firmware debugging on resource-constrained devices.
10 years of coding experience
20 years of employment as a software developer
IT specialist Software programming, IT specialist Software programming at BiB PaderbornOracle Specialist Oracle development, Oracle Specialist Oracle development at Siemens Business Services
German, French, English
Stackoverflow
11reputation
396reached
2answers
0questions
Github Skills (24)
lorawan10
firmware10
i2c10
iot10
sys10
micropython10
updater10
embedded10
live-update10
iot-devkit10
hardware-interface9
integrations9
networking9
python9
nfc9
Programming languages (8)
Github contributions (5)
pycom/pycom-micropython-sigfox
Oct 2017 - Feb 2022
A fork of MicroPython with the ESP32 port customized to run on Pycom's IoT multi-network modules.
Role in this project:
Back-end Developer & Embedded Systems Engineer / IoT Developer
Back-end Developer & Embedded Systems Engineer / IoT DeveloperContributions:15 releases, 8 reviews, 322 commits in 4 years 5 months
Contributions summary:Christian contributed to the core functionality of the MicroPython implementation by modifying the `modlora.c` file, which suggests involvement in LoRaWAN communication. They also added support for new features, including Sigfox registration for Pybytes, by adding new APIs to `modpycom.c`. Furthermore, the user worked on adding MDNS support. These changes indicate a focus on enhancing the device's capabilities related to network communication and IoT integration.
pycomcustomizedesp8266mqttwifimanager
pycom/pycom-libraries
Jun 2018 - Jan 2021
MicroPython libraries and examples that work out of the box on Pycom's IoT modules
Role in this project:Embedded Systems Engineer / IoT Developer
Embedded Systems Engineer / IoT DeveloperContributions:19 commits, 2 PRs, 18 pushes in 2 years 7 months
Contributions summary:Christian primarily contributed to the Pycom MicroPython libraries, adding support for new hardware components such as the Pyscan NFC and Pytrack/Pysense V2.0X. Their work involved modifying existing libraries, updating firmware-related scripts, and fixing bugs within the codebase. These changes indicate a focus on hardware integration and ensuring compatibility with various Pycom IoT modules.
pycompythonboxout-of-the-boxmqtt
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