Born in Bangkok, Teerjapoj has earned a Thailand Bachelor Degree in Music Education from Chulalongkorn University. He also studied at the Swiss Jazz School (Bern) and the Ecole de Jazz de Lausanne (Switzerland).
Since 2002, he has been a Jazz Piano Instructor for the Jazz faculty of the College of Music, Mahidol University. He has performed along and recorded sessions with Thai and International artists like Fabio Morgera, Tony Lakatos, Steve Cannon, Dianne Witherspoon, Magos Herrera, Tito Puente Jr., Grooveridee, Ronny Williams, Longinue Parsons, Koh Mr.Saxman , Mr.Team, Keaw Carabao, Prai Pathomporn, etc. He is the Rootman Band: Leaders of Groove, R&B, Funk Band and the Teerapoj Plitakul Trio.
He has performed at many international festivals and concerts like the Jarasum Jazz festival (Korea), JazzMandu (Nepal), Beijing NineGates Jazz Festival (China), A Celebration Concert at Dhaka (Bangaladesh), Thai Festival (Kathmandu ,Nepal), Thailand International Jazz Conference, HuaHin Jazz Festival, Bangkok Jazz Festival and many more.