Dr. Bertagnoli advised to avoid competitive sports and high impact / labor intensive activities until 6 months post-op at the earliest. I know we all must work to pay the bills, but I would caution on the side of taking too much time off as opposed to too little.
Remember you only get one spine in this life.
Pablo, I am close to a year and a half post-op and I am positive I wouldn't want to be jackhammering anything right now or in the foreseeable future.
Maybe others can elaborate that have had physically demanding jobs post-op.
I wish you the best,
Justin