He is on the books of Metta/LU Riga and wears shirt number 4. At international level, he features for Latvia U21. His main role on the pitch is Defender. His estimated market valuation currently stands at 125K €.

His latest transfer saw him join Metta/LU Riga from Skanstes SK via Loan on 2022-02-28.

Across the Latvian Higher League 2025, karlis vilnis appeared in 34 matches and averaged 1 tackles, 0.7 interceptions, 5 clearances, and 0 blocked shots per game.