Career
Early career
Dimitar Aleksiev started his youth career at Sliven. At the beginning of his professional career Aleksiev played for Lyubimets 2007 and Dimitrovgrad. Haskovo
Dimitar Aleksiev spent two years at Haskovo.
He was selected for the best played of the season as well as best young player of the season in B Grupa.
Dimitar Aleksiev played in 20 games in A Grupa and scored 5 goals for Haskovo during season 2014-2015. Despite his efforts the team was relegated to B Grupa and Aleksiev left after the end of the season.
Botev Plovdiv
On 24 June 2015 Aleksiev joined Botev Plovdiv as a free agent and signed a two-year contract. A week later he made an unofficial debut when he came on as a substitute during the second half of the friendly game with Football Club Oborishte.
After a long absence from the first team squad, on 30 October, Aleksiev came on as a substitute during the second half of the 2-0 away defeat of Botev Plovdiv from Slavia Sofia.
On 13 January 2016 Aleksiev was released from Botev Plovdiv after playing only 4 games for the club without scoring any goals in official games. Lokomotiv GO
On 18 January 2016 Aleksiev signed for Lokomotiv GO.