The key to a winning job proposal is to tailor your approach, highlight your skills, and understand client needs. Read on to learn more.Discover easy to use freelance proposal samples for UpWork, and learn about the best tips for writing a proposal that works. Here's an Upwork proposal sample and proven fundamental rules to write Upwork proposals. Here's the structure I'll follow in each job. I just submitted a proposal that took me about an hour to write up. Show similar projects:- In your proposal, you will have to show the link to your portfolio website or similar projects that you have to work on. I quickly introduce myself, attach samples if needed, tell them how much I want, and wrap up. The purpose of a proposal letter is to just tell them you are an expert who found their job posting appealing.