Software engineer 
- My world is vertical market shrinkwrap. Do you know your world?
- C#, Python, JavaScript, C, VB6, Fortran, PHP... 
- Web platforms, user interfaces, graphics, data manipulation, numerical models, CLIs.
- Database stuff with SQL Server/Postgres/Oracle/MySQL/Firestore/Access. 
At university I studied Physics but I used to write things like compilers and chess programs for fun. For a while I wrote scientific software, now it's anything :)