Kobylański was born in Berlin as the son of former Polish international Andrzej Kobylański. At the time of his birth, his father was playing for 2. Bundesliga side Tennis Borussia Berlin. The majority of his youth however, he spent in nearby Cottbus where his father also had a three-year spell with local FC Energie.
Career
Professional debut in Cottbus
At the age of only 17, he made his 2. Bundesliga debut on 6 November 2011 as a 15th-minute substitute for Dimitar Rangelov in a 2–0 home loss to SC Paderborn.[2] At that time several Bundesliga clubs, including Bayern Munich, showed interest in his services.[3]
Werder Bremen
Kobylański signed for Werder Bremen II in summer 2012, and was a regular for the team throughout the following 2012–13 season. He made his debut for the first team in a friendly versus FC St. Pauli on 5 September 2013 and scored Werder's only goal in a shock 4–1 defeat. He had his debut in the Bundesliga for Werder Bremen on 21 September 2013 in a game against Hamburger SV in which he started.[4]
Union Berlin (loan)
In August 2014, Kobylański moved to his native city and signed for Union Berlin on a one-year loan. Werder Bremen also granted Union a purchase clause.[5]
Preußen Münster
Kobylanski spent the second half of the 2016–17 season at 3. Liga club Preußen Münster, on loan from Lechia Gdańsk, scoring five goals in 16 appearances while being deployed in different positions. He signed permanently for the club in June 2017, agreeing to a two-year contract.[6]
Eintracht Braunschweig
On 30 May 2019, Eintracht Braunschweig confirmed, that they had signed Kobylanski for the 2019–20 season on a three-year contract.[7] On 14 May 2022, it was announced he would leave the team at the end of the season.[8]
1860 Munich
On 19 May 2022, Kobylański signed for 3. Liga side 1860 Munich.[9] On 22 June 2023, he left the club by mutual consent.[10]