Captain Commander Teletin joined the Romanian armed forces in 1996. He graduated from the Romanian Military Technical Academy in 2001 as an aircraft maintenance officer specialized on weapons, munitions and egress systems. Henceforth he served on various positions at the 95th Air Force Base, Bacau, Romania. Starting in Oct. 2008, he undertook, for a year, his first international tour as a Military Observer within the United Nations Mission in the Democratic Republic of Congo. Starting July 2013 he was posted for four years within the A4 Division at HQ Aircom, Ramstein, Germany. In August 2019 he joined the Assessment, Coordination & Engagement branch at the JAPCC in Kalkar.