This is not really a job and I didn't get paid money for it, but I hope it counts.
I am in college now. There are a bunch of eateries on campus, and while I was at one, I started talking to the owner. The guy was an entrepreneur and had a whole bunch of outlets across various college campuses. One thing led to another, and I agreed to make an Android app for his outlets that would allow customers to place orders for home delivery.
It takes me and a friend a few weeks to get it ready, but we managed to do it. Also we made a website for the administration and viewing of orders.
In return for this, the owner offers me unlimited free food at his outlet.
It's been almost two years since I made it, and I still get free food.