Vaka started her career with
BYU Cougars in the United States. She was drafted by
Bay FC in the fourth round of the
2024 NWSL Draft on January 12, 2024. Vaka was subsequently not signed to Bay FC ahead of their 2024 season. She signed with
Fort Lauderdale United FC in May 2024, becoming the first Tongan professional female soccer player. She started all 18 of Fort Lauderdale United's matches before sustaining an
ACL injury in March 2025. ==International career==