He holds a master's degree in physics, field and particle theory from the University of Stockholm, is a qualified pilot and has lectures on Meteorology on YouTube.
In 2013, Kravljaca appeared alongside among others Göran Edman, Nils K Rue and Ralf Scheepers as one of the lead vocalists on Norwegian melodic metal band Nergard's first album 'Memorial for a Wish'.
In 2015 the Norwegian band released another album, titled 'A Bit Closer to Heaven' which again featured Kravljaca alongside other vocalists such as Elize Ryd and Nils K. Rue.
Published in 2022 by Frontiers Music, Hydra's debut album 'Point Break' features Kravljaca on vocals as well as rhythm and lead guitars.
In 2006 Kravljaca joined the Swedish progressive metal band Silent Call, which subsequently released their debut album "Creations From A Chosen Path" in 2008.
In 2009 Kravljaca recorded two vocal guest appearances, and two guitar solos, with the UK progressive metal band, Aeon Zen.