I posted bail with a bondsman when I was arrested and he let me make payments. I lost my job and cant pay the bondsman? Does that mean I will go back to jail?

The answer is probably yes. The bail bondsman entered into an agreement with you to bail you out of jail. If you violate that agreement,  which includes making payments to him in a timely manner on the premium you owe him, he can advise the court that he feels you are not a good “risk” and can arrest you and place you back in custody. I would strongly suggest you speak to the bondsman and see if you can make a new payment arrangement with him because I am sure the bondsman would rather have you out paying him than in custody and not paying him.