Pros
Interesting product, good co-workers, clean environment, nice facilities, shutdown between Christmas and new years, benefits were good (not sure how they are now). Nice architechture in Columbus.
Cons
The most nonproductive work environment ever! Union, union, union...they expected engineers (especially those right out of school) to be able to tell technicians (union) how to run equipment which the engineers weren't allowed to touch or ever operate. Engineers were expected to get work finished and had to report to upper management on progress, however certain union people (not all of them) would put off their required work and there was nothing the engineer could do (but look bad). For example, it could easily take a month to get the machine shop to drill a simple hole. It wouldn't be fair to say all union employees are bad (there were some there who could run circles around the engineers), though I feel I worked with some of the worst of them here. This is a bad first engineering job if you are right out of school, and if you are used to a hands-on position, don't come to cummins. Also, cummins is pretty much the only game in town, so when they have their "cleaning house" lay-offs (rumored every 5-6 years), make sure you don't own a house in columbus, especially in today's market. If you're a single guy, Columbus is devoid of any attractive educated single women (I guess most women just don't dig Diesel engines!). You will see many a single lonely old man shopping at the grocery store wearing a cummins uniform.