Sebastian, originally from Cali, Colombia, established himself as a prominent junior player, representing his home country in various international tournaments. In 2008, he relocated to the United States and secured a spot on the Lake Mary High School Varsity team from 2009 to 2011. He successfully graduated from Florida State University in 2015, having earned a degree in marketing and professional sales, all the while actively participating in the university’s golf team.

In 2018, Sebastian transitioned into the professional golfing arena, competing in the South Florida PGA circuit. Furthermore, he gained experience and honed his skills while working at prestigious Florida clubs, including The Breakers Palm Beach, The Bears Club, Old Sandwhich, and The Dye Preserve. Notably, Sebastian is a certified instructor in the SAM Putting Lab.