The 31-year-old made his debut for the Fiji sevens team in 2008 and led them to back to back World Series titles in 2015 and 2016 and sevens gold at last year's Rio Olympics.
"I'm thankful to the Lord and the Strikers management for this exciting opportunity to be a part of the Houston Strikers Rugby family. I'm looking forward to the new challenge," explained Kolinisau.
Osea Kolinisau captained Fiji to sevens gold at the Rio Olympics.