Sheydayev made his European debut in 2017 against Danish Copenhagen in the second qualification round of the UEFA Champions League in Štadión pod Dubňom.

[18] Ramil Sheydayev made his debut for the UEFA Champions League group stage game in a 1–1 away draw against Atlético Madrid in Wanda Metropolitano on 31 October 2017.

[20] He made his Russian Premier League debut with Krylia Sovetov on 19 August 2018 as a substitute for Vladimir Poluyakhtov in a game against Lokomotiv Moscow.

[21] He opened the 2019 calendar year part of the season by scoring in 3 games in a row, as Krylia acquired 7 points, including a goal on his 23rd birthday against FC Anzhi Makhachkala.

Sheydayev was called up and played for the Azerbaijan national football team in a 2018 FIFA World Cup qualification 1–0 win over San Marino.

[29] On 8 October 2017, he scored his first senior international goal for the Azerbaijan national football team, in a 2018 FIFA World Cup qualification against Germany in Kaiserslautern.

[30] He is currently ranked as the second highest all-time goalscorer in the history of the national team with 9 goals (tied with Emin Makhmudov and Vagif Javadov).