He earned his bachelor’s degree from İstanbul University Academy of Physical Therapy and Rehabilitation in 2006. After having worked at distinguished physical therapy centers, he advanced his career at Gaziantepspor Football Club and Acun Media Production Company. He received certifications from health education programs such as Training Course for Team Physiotherapists and Anti-Doping Education Seminar, organized by the Turkish Football Federation. Külli continues his postgraduate studies at IFAO (Institute of Applied Osteopathy) in Germany.