Talk from your personal experience only, if possible.
Option 1: make an account and AngelList (https://angel.co/jobs), there are a ton of startup jobs there, if you have the right skills you'll land one. They have both contract and full time.
Option 2: Get a service job that pays around $10/hour. Mcdonalds, clothing sales, etc. At Mcdonalds you'll get $8.50/hour for an 8 hour shift. I just checked out their website and there's a big apply button on it. You may have to work undesirable hours to get 5 days/week of work, but you could make it work. If you go this route, try to get a service job where you'll actually learn something other than how horrible some customers can be. Years ago I worked at Eastern Mountain Sports for $10/hour and I learned about outdoor gear from the work itself and from the training provided.