Career
Jagiełło is a youth exponent from Legia Warsaw. He made his debut in the Polish Ekstraklasa at 22 July 2013 in a 2-2 away draw against Lechia Gdańsk. He played the full 90 minutes.
His loan was cut-short in January 2014.
On 30 January 2014 he was loaned to Lechia Gdańsk until the end of the season. On 18 July 2015 he joined Dolcan Ząbki on loan.
The loan finished on 29 February 2016.