At international level, he features for Kazakhstan U21. His main role on the pitch is Forward. He measures 177cm in height and weighs 67kg. His stronger foot is Right. His estimated market valuation currently stands at 50K .

His latest transfer saw him join FC Shakhtyor Karagandy from FC Zhetysu Taldykorgan via on 2026-02-16.

During the UEFA European U21 Championship qualification 2023-2024 campaign, Alen Aymanov made 5 appearances, scoring 0 goals and adding 0 assists. He averaged 0 goals per match from 0 shots, with 0 on target.