The Job Success Score (JSS) is Upwork's proprietary metric that measures a freelancer's client satisfaction history, displayed as a percentage on their profile.
Your JSS is one of the most influential factors in your Upwork visibility. It is calculated based on a combination of client feedback (both public and private), contract outcomes, and long-term client relationships. A score above 90% is considered strong, and maintaining it above 95% places you in the 'Top Rated' tier.
Several factors can hurt your JSS: contracts closed without payment, poor private feedback (which you cannot see), inactivity on open contracts, and client disputes. The score is recalculated every two weeks using a rolling window that weighs recent contracts more heavily. One common misconception is that your JSS only considers star ratings. In reality, Upwork also factors in whether a client would rehire you, which is asked privately. This is why maintaining excellent communication and managing client expectations is just as important as delivering quality work.
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