First, please interact with current workers on our Discord channel, to understand what frameworks and activities we're already using / what workflow we have on the go. Once you have a defined deliverable in place, submit a Worker Proposal using 'Apply' on the website.
Custodians will decide on your proposal and communicate the decision to you. When you complete the deliverable, you will be responsible for 'claiming' the proposal. Custodians will assess whether the proposal was completed (probably through a nominated team member), and if it was, payment will be made to the EOS account you specified. Payment is not done continuously, but periodically (at the mid-point and end of the month).