He is on the books of Altinordu and wears shirt number 9. His main role on the pitch is Forward. He measures 182cm in height and weighs 70kg. His stronger foot is Right. His estimated market valuation currently stands at 75K €.

His latest transfer saw him join Altinordu from Karsiyaka via on 2026-02-05.

During the Turkish Second League 2025-2026 campaign, H. Küçükköylü made 3 appearances, scoring 1 goals and adding 0 assists. He averaged 0.3 goals per match from 0 shots, with 0 on target.