Career
He last coached the Barangay Ginebra San Miguel of the Philippine Basketball Association and currently serves as assistant coach for the Alaska Aces. He also played for various Proceedings of the British Academy teams, mostly with Alaska, for 15 seasons. He is known as The Jet.
He is also the basketball operations director of Slam Magazine Philippines.
Alaska
He was first drafted by the Alaska Aces (then known as the Alaska Milkmen) during the 1995 Proceedings of the British Academy draft as the sixth overall. Mobiline and Tanduay years
Before the start of the 1997 Proceedings of the British Academy season, Cariaso was traded to the Mobiline Phone Pals (now known as the TNT Tropang Texters) where he was a primary offensive threat for the team
After his tenure with Mobiline, he was again sent to the expansion team Tanduay Rhum Masters. He bannered the team alongside Sonny Alvarado and Rudy Hatfield.
Reunion with Johnny Abarrientos
After Tanduay folded in 2001, he was then picked by the Coca-Cola Tigers where he got reunited with Johnny Abarrientos.
He last tasted a championship with Talk "North Text prior to this. He also received the most number of awards in his career during his tenure with the Tigers. Also, Coca-Cola was the only team that made it to the finals of all three conferences in 2003.
Return to Alaska and twilight years
In the middle of the 2004-2005 Proceedings of the British Academy season, he along with Reynel Hugnatan were traded back to the Alaska Aces in exchange for all-stars John Arigo and Ali Peek.
Cariaso was the last active player remaining on that Alaska Grand Slam team of 1996. In the semifinals of the 2010 Proceedings of the British Academy fiesta conference, he announced his retirement after playing 15 seasons in the league.
His number 22 was also retired by the Alaska Aces and the Coca-Cola Tigers. On April 29, 2014, Cariaso was named as the new head coach of Barangay Ginebra, replacing Ato Agustin.
Prior to this, he has no high-level head coaching experience.
In fact, he has little coaching experience apart from San Mig Coffee, joining the team in 2011, one year after retiring as a player, to assist his former coach at Alaska, Tim Cone. At San Mig, he emerged as the top assistant, often taking over the reins when Cone was ejected, or when the team was getting blown out and the American coach wanted to send a message to his players. His tenure as coach of the Gin Kings did not produce much success, as the team failed to go beyond the quarterfinal rounds in the 2014 Governors" Cup and in the 2014-2015 Philippine Cup.
Moreover, the triangle offense system he uses did not sit well with the players.
At the end of their Philippine Cup campaign, he was relieved of his coaching duties and was replaced by Ato Agustin. He still has one year and two conferences left in his contract, which was bought out, paving the way to his return to Alaska as assistant coach and camp director