Depending on your manager it can be a VERY unpleasant experience - Senior Systems Engineer Lockheed Martin Employee Review

Great Work Culture. Cap at 40 hour weeks if you want

Sometimes feels kind of slow and not much going on

High level of integrity throughout the company, open communications, and sincere interest in doing the right thing.

Unfortunately, I need to come up with twenty words of cons. When in reality after 41+ years in IT, I have no cons for Lockheed Martin. They are not perfect, but highly acceptable.