I'm amazed to realize that when I retire in 2023, my career in computers will be 45 years long!
I've worked with Microcomputers since starting in 1978, working with CP/M and 8080/Z80 assembler, 8086 assembler, and C, and later Python, PHP, Javascript, bash, and Unix/Linux system administration. Also SNMP monitoring, VOIP and Asterisk.
I've worked for Applied Digital Data Systems, MicroPro (WordStar), 3Com, Palm, Geni and now MRI Software (Happy Software).