The key to a winning job proposal is to tailor your approach, highlight your skills, and understand client needs. Read on to learn more.Here is the EXACT structure that I use for all of my proposals. I've honed this after submitting hundreds and hundreds of losers and a dozens of winners. Your proposal is your elevator pitch, it is your cover letter, it is your first impression, it is the first thing a potential client will see. Here's the structure I'll follow in each job. Free Upwork Proposal Templates Free download as PDF File (. Upwork is the leading online workplace, home to thousands of top-rated Proposal Writers. Want to write a proposal, but not sure where to start? Here are some easy examples to read through and get an idea of how to write a proposal for Upwork.