Like many other posters in this thread, I’ve had a sequential smorgasbord of jobs, rather than the traditional trajectory in a single career.
•I dropped out of college in 1970.
•I started working for the Census Bureau, first in the field collecting data, then in an office processing the forms.
•After that I bummed around for a little over a year including several months in a street band in San Francisco (when they were quite exotic everywhere else).
•In late 1972 I returned home to Chicago and got a part-time Announcer/Engineer job at a small FM radio station, while taking classes in Electronics at DeVry.
•I needed more money so my friend gave me another part-time position at his used record store. He was generously flexible about balancing my schedule.
•I quit both of those jobs when a different friend referred me to a full-time position at a father-&-son electrical contractor managing a huge project as communications sub-contractors on the construction of The University of Illinois Chicago Circle Hospital.
•In 1979 my new wife & I moved to Albuquerque to escape Chicago winters. I got a job as an Instrumentation Technician at Sandia National Laboratories at the 5000 foot Rocket Sled Track Facility.
•In 1980 I kept reading articles about how computers were going to be the wave of the future, so I went back to college to finish my BS in Computer Science. Some people take a Gap Year; I took a Gap Decade.
•My classes were in the day so I had to quit the Technician job. Luckily I found a part-time, second shift job as a Computer Operator also at Sandia Labs on a project to use seismic monitors to detect and locate nuclear weapons tests anywhere in the world. I also had to change the paper on the seismometers very rapidly.
•In January 1983 after I graduated, we moved back to Chicago. I had trouble finding a Programmer job, so I accepted a position as a Technical Writer for the Computer Department of Real Estate investment company. After a year I got a lateral transfer and finally started programming.
•In 1990 that company experienced declining revenue so I quit after finding another position.
•In January 1991 I started a programmer job at a different company closer to home in the suburbs.
•In the early 2000s that company also experienced declining revenue, and in November 2005 laid me off along with several even longer term employees.
•Nobody would hire an old-timer like me. In 2006 I started working in the call center of a Cable TV & Internet company. It sucked so I left.
•My wife was a librarian so in 2007 I got a job at a library at the Circulation Desk.
•A year later I moved to a different library to work in the AudioVisual department (music & movies).
•In 2010 I became a School Bus Driver for slightly more money and better benefits.
•In January (again) of 2012 I got a Technical Writer job for a huge software company.
•In December 2015 my wife retired so in January 2016 I retired too.
Those are the biggies. I’ve also had a few short term jobs including cab driver and delivering advertising circulars door to door.