I arrived in Stockholm, employed as a hardware design engineer, and the first question I was asked was if I knew any 8085 assembler. I answered that the 8085 was the CPU we played with when I was at university, and that was enough. I started with 8085 assembler, then C programs for realtime, hardware related software, then finally into communications software. SDLC, HDLC, X.25 and then project leadership.
Then a new job in Stockholm, document handling systems based on relational databases. Project leadership, system design and programming all rolled into one.