CTA is currently looking to hire bus operators, a position that hasn't been open since before Illinois' stay at home order started. There are a number of positions available, check out the link and pass on the info.
CTA:https://www.transitchicago.com/careers/
HIRE360:https://hire360chicago.com
RAILWORKS:https://www.railworks.com/careers
WALSH FLUOR:https://walsh-fluorrpm.com/career-opportunities/