Homer’s regular job is at the Springfield Power Plant, so it seems a bit remiss to not include it here. At the same time, it’s not the most exciting job he’s had, so an honourable mention feels like it fits best.
There’s been some fantastic moments specifically involving his time at the power plant, and a whole host more that happen at the pwer plant simply because he’s there. His initial promotion to safety inspector, the time he outmanoeuvred Burns without realising as union head and when the Germans came to town are all utterly brilliant Simpsons moments which revolve around Homer’s position in sector 7-G.
Someone as stupid as Homer working at a nuclear power plant is just inherently hilarious. It often gets forgotten about, given that the show’s been going on for 30 years now, but it really can’t be overstated.
Springfield Power Plant also gives us an insight into one of the show’s best supporting characters, Monty Burns, as well as his lackey Smithers, who just might pop up later. We see Lenny and Carl at Moe’s, but it’s at the plant where we see most of them too. It’s been a great backdrop over the years.