[4] As one of GMA's first contract artists, he had roles in Di Ba't Ikaw, Bubble Gang, and others.
[5] In between transferring networks, he focused on his studies as a junior BSBA Management student at AMA Computer University-East Rizal and lived for six months in California.
[3] He made his ABS-CBN television drama debut on Pangako Sa'Yo in the role of David San Luis, the childhood best friend of the female lead Yna Macaspac (Kristine Hermosa).
[6] He then starred in another film alongside Judy Ann Santos in May Pag-Ibig Pa Kaya?
[8] In 2006, he played the antagonist Diego in Gulong ng Palad, the remake of the 1949 hit radio drama and 1977 telenovela.
He also joined the all-male macho group Barako Boys, alongside Jay Manalo and Christian Vasquez, which has released an album.
[9] Alandy subsequently returned from ABS-CBN to GMA Network, appearing in two primetime shows, Dyesebel and Luna Mystika.
[11] In 2015, Alandy played David Limjoco in the lesbian TV series The Rich Man's Daughter.
[14] Later that year, he returned to ABS-CBN in the lead role of 'Carlos' in the afternoon series Kadenang Ginto, alongside Dimples Romana, Beauty Gonzales, and Albert Martinez.
[13][20] In 2023, he played the main antagonist role of 'Magnus Illusorio' the corrupt politician and greedy man in the afternoon series Magandang Dilag, alongside Herlene Budol, Benjamin Alves, Rob Gomez, and Maxine Medina.