A personal note from Aditya Pahariya — Embedded SWE @ MathWorks, NIT Bhopal Gold Medalist.
When I started preparing for embedded systems roles at Tier-1 companies, I quickly realised that most preparation resources were not built for embedded engineers. LeetCode is designed for web and software interviews. Bootcamps are expensive. Free content rarely goes deep enough on RTOS, bare-metal C, or firmware architecture.
So I started building tools for myself — and eventually decided to make them available to other engineers facing the same challenge.
Requires strong Linux Kernel knowledge, memory management, and systems programming depth — well beyond standard DSA practice.
RTOS concepts such as priority inversion, task scheduling, and ISR design are central. Understanding them theoretically is not enough — you need to be able to reason through them hands-on.
Heavy focus on bare-metal C, peripheral configuration, and firmware code quality. The kind of skills you build through hands-on practice, not reading.
*The above reflects personal preparation experience and research into publicly available information about these companies' interview processes. Hexorexa is not affiliated with Google, Qualcomm, or Texas Instruments. Interview formats change — verify with official sources.*
Hexorexa is still early. Over the next weeks and months I'll be improving every tool, adding new company resources, and expanding the content based on feedback from engineers using the platform.
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