Complex sentence: In 2009, Bates worked for a big grocery supplies chain, then as a floor technician in the 6 p.m. to 4:30 a.m. shift with the Colgate recycling company in New Jersey.
Split into simpler sentences: In 2009, Bates worked for a big grocery supplies chain. Then at present, Bates works as a floor technician in the 6 p.m. to 4:30 a.m. shift with the Colgate recycling company in New Jersey.