He is on the books of Club Guaraní and wears shirt number 19. His main role on the pitch is Defender. He measures 179cm in height and weighs 72kg. His stronger foot is Left. His estimated market valuation currently stands at 275K €.

His latest transfer saw him join Club Guaraní from Club Sportivo 2 de Mayo via Loan on 2025-12-31.

Across the Paraguayan Primera Division 2026, César Gregorio Ramírez Perdesen appeared in 7 matches and averaged 0.4 tackles, 0.6 interceptions, 1 clearances, and 0 blocked shots per game.