When I watched it, I worked on embedded software for research devices, most notably this: https://www.beckman.com/centrifuges/analytical-ultracentrifuges/optima-auc

I have since worked on a kubernetes job-runner for Spark workloads, insurance systems for a worker’s comp startup, and currently the job runner and related software for some quantum computers.

Most of my work has been in Python, C++, C#, Java, Scala, Go, and Rust. (Rust is my preference.)