As a counterpoint to the other folks in this room. It definitely matters.
Imagine you are a recruiter at a big company, you are looking at 100s of resumes. If are looking for some way to get that list down to something that the company could reasonably interview. GPA is ONE way that they do that. You don't need to have an amazing GPA but you need to have at least a decent one.
If you don't have a great one, you will need to A. get lucky with a job taking a chance on you and then B. you need to CRUSH that job. People who had low GPAs dig themselves out, and can be very successful but you need to play a lot of catch up to prove that your GPA isn't reflective of you.
Short answer. It's not great but if you work REAL hard and get lucky you can overcome it!