The posts used terms such as "slave slum low class Pignoy," and said Filipinos were best suited for work as "maids and toilet lickers,"Inquirer.net reported.
The Bureau of Immigration was revising the visa status of Prasertsri Kosin, who wrote under the name Koko Narak, a spokeswoman was quoted as saying by the Sun Star online.
He would be deported if found to be undesirable, she said.
Kosin has since posted an apology. "I am very sorry what I've done or posted the racist comments," he wrote, attributing the misunderstanding to "playfulness," Inquirer.net reported.
His employer Cognizant Philippines said on its own Facebook page it had taken disciplinary action, and distanced itself from his views.
Kosin's Facebook page was not displaying any of the activities or posts on the account.