Biography
| Head Coach of national team of Bulgaria | from 27.10.2019 |
| Head Coach of Levski Sofia | from 10.01.2019 till 10.06.2019 |
| Head Coach of Ordabasi Kazachstan | from 03.01.2018 till 01.07.2018 |
| Champion of Bulgaria with FC Ludogorets | 2011-12, 2012-13, 2013-14, 2014-15, 2015-16, 2016-17 |
| Cup winner of Bulgaria with FC Ludogorets | 2011-12, 2013-14 |
| Cup winner of Bulgaria with FC Litex | 2000-01, 2003-04 |
| Champion of Bulgaria with FC Ludogorets | 2011-12, 2012-13, 2013-14 |
| Cup winner of Bulgaria with FC Ludogorets | 2011-12, 2013-14 |
| Cup winner of Bulgaria with FC Litex | 2000-01, 2003-04 |
| Super Cup winner of Bulgaria with FC Ludogorets | 2011-12, 2013-14 |
| Finalist in the tournament for the Cup of Bulgaria with FC Litex | 1998-99, 2002-03, 2006-07 |
| 1/16 final in the tournament for the Cup of UEFA | 2005-06, 2016-17 |
| 1/8 final in the tournament for Europa League | 2013-14 |
| Champions League group state participant with teams of Real Madrid, FC Basel, Liverpool FC 4 points in the final group standings | 2014-15 |
| Champions League group state participant with teams of Arsenal,Paris SG and FC Basel 3 points in the final group standings proceeds to the round of 32 of the Europa League against København | 2016-17 |
Coach #1 for 2016 in domestic championship (A grupa) in the annual quest "Player of the year"
Coach #1 for 2014 in domestic championship (A grupa) in the annual quest "Player of the year"
As a head coach and assistant Georgi Dermendzhiev faced 4 former European champions. The last of them was the great FC Liverpool who dramatically denied Ludogorets a well deserved point at Anfield. Before that match Georgi Dermendzhiev eliminated Steaua. As an assistant coach he was knocked out by Hamburger SV in 2007/2008 season. During the last European campaign Ludogorets beat twice PSV Eindhoven in the groups of UEFA Europa League.
A very interesting fact is that all head coaches assisted by Georgi Dermendzhiev in the European tournaments have become Bulgarian champions – Dimitar Dimitrov, Ferario Spasov, Stoycho Mladenov, Ljupko Petrović, Ivaylo Petev and Stoycho Stoev. And is it not the present head coach of Ludogorets the man behind the most of their successful performances? The facts speak for themselves – 31 of the said 62 European fixtures of Georgi Dermendzhiev as an assistant coach ended with victory for the Bulgarian side, 11 in a draw and 20 games were lost. The total count of Georgi Dermendzhiev’s European matches already reached 66 of which 32 wins, 12 draws and 22 defeats.
The 59-year-old Dermendzhiev is not a man who likes to give interviews and to be in the spotlights. Nonetheless, everyone who used to work with him is impressed with his professionalism. The man from Plovdiv is part of the Ludogorets project from the very beginning and many think he was the architect of Eagles successful performance. Since the formation of the present outfit, the club from Razgrad offers the same impressive display and fascinates football specialists. Dermendzhiev was the man who initiated the close collaboration between the first team and the club’s academy. Thanks to him only in Ludogorets the preparatory groups have two coaches which further their development. The head coach accomplished practical coaching training in Spain and gathered experience from the best football experts.
Since November 2015 Dermendzhiev came back to Ludogorets as a head coach. Soon after the team went to the top of the table.
Dermendzhiev won Champion of Bulgaria with FC Ludogorets in seasons 2014-15, 2015-16 and 2016-17.