Shin turned pro in 2010 and joined the Futures Tour. She made 7 top tens during the season, improving gradually through the year. After an 8th place at the Tate & Lyle Championship, her first top ten, she made a 2nd, then a 4th, then won her first event as a pro when she captured the International at Concord in July. Three more top tens in her final four events allowed her to finish 4th on the year ending money list, which earned her full status on the LPGA tour in 2011. Her 2011 season rewarded two top ten finishes – a just-worthy return for someone who ended up 9th on the season’s putting average rankings (27.39).
In 2011 Jenny finished tied 6th at the CN Canadian Women's Open; tied for 13th at the RR Donnelley LPGA Founders Cup.
During 2012 Shin recorded 5 top 10 finishes with her season best result coming at The HSBC Women's Champions where she finished T-2.