Filip Majchrowicz was born on February 9, 2000, in Olsztyn, Poland.
He is a product of the Stomil Olsztyn youth academy.
He made his debut in the top-tier league playing for Radomiak Radom during the opening match of the 2021/2022 season against Lech Poznań (0-0), immediately keeping a clean sheet.
In the autumn round of the 2022/2023 season, he was loaned to Pafos FC, and he spent the autumn round of the 2023/2024 season with Swedish club IK Sirius.
Before the 2024/2025 season, he joined Górnik Zabrze. He made his debut for the 14-time Polish Champions on September 25, 2024. Overall, he played 13 matches for Górnik Zabrze (including 12 in the PKO Ekstraklasa) and kept 4 clean sheets.
Filip gained recognition for saving 3 penalty kicks within a single week. According to Transfermarkt data, no goalkeeper in the Ekstraklasa of the 21st century who has faced more than 8 penalties can boast a better save percentage.
Starting from the 2025/2026 season, Filip Majchrowicz once again represents Radomiak Radom.