He plays primarily as a Forward.

His most recent move was a Free from Stjarnan Gardabaer U19 to Vikingur Olafsvik on 2026-02-04.

In the Iceland Besta-deild karla 2025 season, Jón Björgvin Jónsson scored 0 goals and provided 0 assists across 1 appearances, averaging 0 goals per game with 0 shots attempted and 0 on target.