Jan-Sebastian·Koppensteiner is a professional footballer from AUT and is currently 25 years old. He is on the books of Traiskirchen and wears shirt number 37. His main role on the pitch is Forward. His estimated market valuation currently stands at 50K .

His latest transfer saw him join Kremser from SKU Ertl Glas Amstetten via Free on 2025-06-30.

During the Austrian 3.Liga 2025-2026 campaign, Jan-Sebastian·Koppensteiner made 12 appearances, scoring 1 goals and adding 0 assists. He averaged 0.1 goals per match from 0 shots, with 0 on target.