Have lots of experience with Linux
Brought up kernels on boards with ARM chips from companies like NXP and Qualcomm
Curated Linux distributions with Yocto
Patched drivers written for ancient Linux kernel versions to work in mainline
Upgraded ancient Yocto BSPs to the latest Yocto release
I enjoy making sure ARM boards are running the latest possible software
Program in Go, C/C++, bash (if that counts), C#, Java, and Python
Order: most to least used
Understand SIMD instructions such as NEON and SSE
Can make an alright front-end
In either pure HTML+CSS+JS, Fyne, or Flutter
Created full dev+build pipelines with GitHub Actions and/or Jenkins
Designed basic, cheap PCBs
Most complicated involved an ESP8266-WROOM-like module with a couple sensors
Have some experience in Unity and Godot