In general the film is a model of racial representation (although the white guy is still at the top, even in the future). On the other hand I was thinking about how the film fairs when it comes to the Bechdel test.
There are two women characters in both the Earth team and aboard the spaceship.
Those on the Earth team didn't seem to interact, instead making their contribution to a male character who was mediating the overall conversation.
On the spaceship the women do interact but aside from exchanging orders and confirmations the only other conversation I noticed is when the crew is discussing whether to force the ship into the slingshot orbit or not. While this is notionally an exchange of views about the the mission it's actually a discussion about whether the women should risk themselves to save Watney. So the conversation is ultimately about their relationship to a man and hence fails the test.