Łukasz Hejnak
Senior Staff R&D Engineer at Freelance
Cracow Metropolitan Area Poland
Summary
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Rockstar🎓
Top SchoolŁukasz Hejnak is a Senior Staff R&D Engineer with 11+ years building low-level test frameworks, embedded systems, and web integrations, currently at Nordic Semiconductor and freelancing on STM32-based IoT interfaces. He blends hardware-proximal work (CMSIS/registry-level testing, VHDL/FPGA systems) with backend and automation expertise—designing OAuth2/SSO REST APIs, Java WebDriver/TestNG frameworks, and versatile Python/Perl tooling. An electronics enthusiast, he designed a standalone Altera FPGA-based environmental monitor that communicates over Bluetooth LE with a custom API, highlighting his end-to-end hardware-to-cloud sensibility. He runs a karate school as a Sensei, reflecting leadership and discipline he brings to engineering teams. An open-source-minded polyglot, he enjoys creating practical utilities across languages to learn and help others.
11 years of coding experience
18 years of employment as a software developer
AGH University
Polish, English, German
Stackoverflow
11reputation
128reached
0answers
1question
Github Skills (58)
infiniband10
freertos10
docker-build10
mcu10
git-repository10
zephyr-rtos10
bluetooth-le10
microcontroller10
hardware10
zephyr10
iot10
rtos10
firefox10
bluetooth10
geckodriver10
Programming languages (5)
Github contributions (5)
LeHack/DE0Nano_VHDL
Oct 2016 - Jul 2017
Contributions:27 commits, 23 pushes, 1 branch in 8 months
LeHack/martialdb
Mar 2016 - Jun 2016
Contributions:40 commits, 34 pushes, 1 branch in 3 months
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