He was appointed at the Institute of Physics, BAS (1969 – 1972); and later at the Plovdiv University (1972 - 1997).
He became associate professor (1990) and full professor in the Experimental Physics (1993) in Plovdiv.
Laboratory of Low Temperature and Magnetism at the Institute of Solid State Physics took on him after that (1997)
Teaching activities:
His lecture cources on "Physics for Biologists"; "Experimental Physics Base of Electronics"; "Condense Matter Physics"; "General Physics" were interesting.
Publications:
К. Калайджиев, Дисертация, ПУ, Пловдив, 1977
К. Калайджиев и др.Физика за биолози, Пловдив (1979)
К. Калайджиеви др., Физика на кондензираната материя, Пловдив (1982)
К. Калайджиев и др., Кратко въведение във физиката на твърдото тяло, Пловдив (1986)
