Karol Lasończyk
Team Leader, Staff R&D Engineer at SKPG KRAKÓW Studenckie Koło Przewodników Górskich w Krakowie
Krakow, Lesser Poland Voivodeship
Summary
🤩
Rockstar🎓
Top SchoolKarol Lasończyk is a seasoned embedded systems engineer and team leader with 11 years of experience, currently leading R&D firmware teams at Nordic Semiconductor in Krakow. He combines hands-on low-level hardware work—contributions to high-profile open-source projects like Arm Mbed OS, nrfx, and Zephyr—with leadership that drives platform-level support for Nordic nRF5x/nRF54 devices. Known for improving flash and TRNG implementations, low-level peripheral drivers, ADC/PWM and power configurations, he bridges device internals and production-ready firmware. Pragmatic about continual learning, he intentionally focuses on roles that expand skills rather than repetitive tasks, and outside work he guides mountain groups, reflecting curiosity and leadership beyond engineering.
11 years of coding experience
11 years of employment as a software developer
Magister (Mgr) Informatyka, Magister (Mgr) Informatyka at The Silesian University of Technology
Polish, English, German
Github Skills (27)
low-level10
embedded-language10
c1110
nrf5284010
microcontroller10
zephyr10
c1710
iot10
adc10
rtos10
driver10
device-driver10
peripheral10
sys10
pwm10
Programming languages (2)
Github contributions (5)
NordicSemiconductor/nrfx
Oct 2017 - Aug 2020
Standalone drivers for peripherals present in Nordic SoCs
Role in this project:
Embedded Systems Engineer / IoT Developer
Embedded Systems Engineer / IoT DeveloperContributions:19 releases, 25 commits, 37 PRs in 2 years 10 months
Contributions summary:Karol primarily contributed to the nrfx driver library, specifically focusing on low-level peripheral drivers for Nordic Semiconductor SoCs. Contributions involved removing deprecated assertions, adding a hardware access layer for the nrf_ecb module, and fixing initialization issues in the nrfx_spim driver. The user also released multiple versions of the nrfx library, indicating a role in maintaining and improving the software.
driversnrf52nrf52840nordicperipherals
zephyrproject-rtos/zephyr
Feb 2017 - Apr 2025
Primary Git Repository for the Zephyr Project. Zephyr is a new generation, scalable, optimized, secure RTOS for multiple hardware architectures.
Role in this project:Embedded Systems Engineer / IoT Developer
Embedded Systems Engineer / IoT DeveloperContributions:284 reviews, 24 PRs, 171 comments in 8 years 3 months
Contributions summary:Karol's contributions primarily involve the embedded systems domain within the Zephyr RTOS project. They focused on enabling and updating ADC (Analog-to-Digital Converter) functionality for Nordic Semiconductor nRF54 series devices, including the nRF54L15 and nRF54H20. The user also implemented PWM (Pulse Width Modulation) support for LEDs on nRF54 DKs and integrated DCDC configuration and FLPR (Fast Low-Power Radio) support for the nRF54L15 platform. Further contributions encompass SoC support for nRF54L20 and adjustments to reset reason clearing and gain options for SAADC.
bluetooth-lereal-timezephyrsecuregit-repository
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.