He is on the books of Cork City and wears shirt number 3. His main role on the pitch is Defender. His stronger foot is Left. His estimated market valuation currently stands at 75K .

His latest transfer saw him join Cork City from Cork City U19 via on 2024-01-01.

Across the Ireland First Division 2026, matthew kiernan appeared in 3 matches and averaged 0 tackles, 0 interceptions, 0 clearances, and 0 blocked shots per game.