Not worked on any, but a lot of charity support, teaching engineering in the classroom and science events, support for employee driven charitable events is always possible.
high focus on CSR
I was part of the GCC challenge - where a team of 7 participants will carry pedometers and track their steps throughout a 100 day period, and compete with other teams from countries all around the world. Lockheed also provides support for its employees through a program provided by HR.
All kinds of programs, such as the graduate development program which I am included in