Marcin Szymczyk
Software Engineer at Google
Krakow, Lesser Poland Voivodeship
Summary
🤩
Rockstar🎓
Top SchoolMarcin Szymczyk is a firmware-focused software engineer with seven years’ experience building low-level IoT and embedded systems, now based in Krakow and currently at Google. He spent the bulk of his career at Nordic Semiconductor progressing from intern to staff engineer and team lead, driving firmware, power management, and real-time IRQ improvements for production hardware. An active open-source contributor to high-profile projects like the Zephyr RTOS and nRF Connect SDK, he’s delivered interrupt controller drivers, emulated GPIO support, and boot/workaround changes that demonstrate deep hardware-software fluency. Marcin combines hands-on driver development and build-system improvements with test-infrastructure and IPC integration expertise, and he often focuses on pragmatic workarounds that improve reliability on constrained platforms.
7 years of coding experience
8 years of employment as a software developer
UPC Universitat Politècnica de CatalunyaMagister (Mgr) Elektronika i Telekomunikacja - Systemy Wbudowane, Magister (Mgr) Elektronika i Telekomunikacja - Systemy Wbudowane at AGH University of Krakow
Polish, English, Spanish, Italian, German
Github Skills (24)
c-language10
realtime10
embedded-language10
risc-v10
interrupt-handling10
zephyr-rtos10
microcontroller10
ipc10
zephyr10
interrupt10
sys10
embedded10
interprocess-communication10
nrf-connect-sdk10
assembly9
Programming languages (2)
Github contributions (5)
zephyrproject-rtos/zephyr
Aug 2018 - Mar 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:532 reviews, 48 PRs, 363 comments in 6 years 8 months
Contributions summary:Marcin made significant contributions to the Zephyr RTOS, primarily focusing on Nordic Semiconductor's VPR (Variable Power Regulator) and related interrupt handling. Their work included modifying the boot process, implementing workarounds for hardware issues, and optimizing power management by adjusting interrupt handling. The user also developed new interrupt controller drivers and adapted test cases, showcasing a deep understanding of embedded systems and low-level hardware interactions. Moreover, they improved the Zephyr build system.
bluetooth-lereal-timezephyrsecuregit-repository
nrfconnect/sdk-nrf
Dec 2018 - Apr 2025
nRF Connect SDK main repository
Role in this project:Embedded Systems Engineer / IoT Developer
Embedded Systems Engineer / IoT DeveloperContributions:196 reviews, 59 PRs, 28 pushes in 6 years 4 months
Contributions summary:Marcin contributed significantly to the nRF Connect SDK, focusing on the development of an emulated GPIO driver and integrating it within the Software Defined Peripherals (SDP) framework. Their work involved creating header files, driver implementations, and integrating the driver with an IPC service. The user also refactored and reorganized backend code and added a Hard RealTime IRQ code, while also improving test infrastructure.
connect-sdknrf-connect-sdkinfinibandlteppp
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