One company, many careers
I still work at the same company where I began my career 24 years ago. In fact, I helped install our very first network! Network infrastructure was much simpler in those days. For example, I used to work with hubs that were far less complex the switches and routers we use today.
Today, my job focuses on designing networks for customers that meet their specific requirements. And although technology has changed immensely, this design principle stands the test of time: Keep the design simple and standardize as much as possible.