He is on the books of Alagoinhas Atletico BA and wears shirt number 5. His main role on the pitch is Midfield. He measures 180cm in height and weighs 78kg.

Over 1 appearances in the Brazilian Cup 2026, Willian kaefer contributed 0 goals and 0 assists, completed 0 key passes from 0 total passes, and posted a passing accuracy of -.