IntelyCare, a company that connects nurses with job opportunities, optimized their premium job listings.The company uses a sort-by-relevance feature to improve the experience for paying customers and steer away from low-quality jobs.Job relevance is determined by a score between 0 and 100, with higher scores being boosted to the top of search results.In a geo-randomized experiment, premium job openings performed 25% better than regular jobs.