In 2000, Jin started a two year Feng Shui apprenticeship in Taipei, Taiwan with renowned Feng Shui Master Chen Chien Lee, who specializes in both Yang and Yin House (residence and grave) Feng Shui.
In 2005, Jin started a weekly Feng Shui column with the main English newspaper in Hong Kong, South China Morning Post. In 2010, a compilation of his Feng Shui columns was published as Feng Shui: A Hong Kong Perspective.
Jin also practices and teaches Chinese Astrology. He studied the Four Pillars of Destiny or Eight Characters of Birth (Ba Zi) with Lily Chung in San Francisco and Emperor Astrology (Zi Wei Dou Shu) with Tony Tan in Singapore. In 2013, he published with his teacher and co-author Lily Chung Four Pillars of Destiny: Discover Your Code To Success. This was followed by Four Pillars of Destiny: Finding Your Life Partner in 2014 and Four Pillars of Destiny: Your Life Numbers and Hexagrams from the I Ching.