Robin Kastberg
Product Engineer at IAR
Greater Uppsala Metropolitan Area Sweden
Summary
🤩
Rockstar🎓
Top SchoolRobin Kastberg is a Product Engineer with 11 years of technical experience, currently focused on device support, probe troubleshooting and board bring-up for RISC-V and ARM at IAR Systems. He combines deep embedded systems expertise with practical product work—helping gather requirements, providing third-line support, and integrating third‑party ecosystems like Zephyr and CMSIS. An active contributor to the high-profile Zephyr RTOS, he has improved IAR toolchain compatibility and fixed compiler/linker issues across architectures, enabling features such as VLA and STM32 support. Previously a mathematics instructor and program lead, he brings strong pedagogical skills and a talent for translating complex technical topics into teachable, executable plans. Based in the Greater Uppsala area, he pairs academic rigor from a mathematics degree with hands-on embedded development and trace-standard experience (Nexus/E-Trace/ETM).
11 years of coding experience
Bachelor of Science - BS, Mathematics, Bachelor of Science - BS, Mathematics at Uppsala University
Japanese, English, Swedish
Github Skills (11)
arm10
embedded-language10
rtos10
zephyr10
cmake9
linker8
cortex-m8
script8
linkage8
microcontroller8
embedded7
Programming languages (5)
Github contributions (5)
zephyrproject-rtos/zephyr
Oct 2024 - Apr 2026
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:50 reviews, 39 PRs, 112 comments in 1 year 6 months
Contributions summary:Robin primarily contributed to the Zephyr RTOS project, focusing on adapting the system for various toolchains. They fixed bugs related to compiler compatibility, particularly with the IAR toolchain. Their work involved modifying code to address compiler-specific issues, such as handling unnamed parameters, and implementing linker script updates for features such as ZTEST and STM32 support. The user also added and improved the IAR toolchain support, enabling VLA features.
hardwarertosiotembeddedreal-time
RobinKastberg/CMSIS_6
Nov 2023 - Mar 2026
Contributions:2 PRs, 12 pushes, 13 branches in 2 years 3 months
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