Math guy in a sweater with a reindeer, who saw vacuum tube computers in action. I am just solving math and computer science problems for 20+ years.

At present, I am working as Lead R&D scientist in IT, lecture Math & Computer Science in university, and writing miles of code, every year...

You may look into my channel on YouTube, with software development video lectures (most of them on russian language):
https://www.youtube.com/c/AntonDziavitsyn