Career
He worked for Helsingin Sanomat from the year 1967, joining the papers permanent staff in 1978. In addition to reviewing and criticizing, Kajava also directed theater and musical theater. The for Critics, he received in 1992.
Kajava was a critic held in esteem by many, whose reviews could notoriously consign a mediocre performance to total oblivion, but often highlighted new and notable performances and performers from the Finnish general theatrical scene.