In 2015, Arun embarked on a notable journey of service by joining the United States Armed Forces. His military career commenced with a rigorous basic training at Fort Jackson, South Carolina, following which he continued to serve his nation diligently as a reservist. Demonstrating remarkable aptitude and dedication, he graduated at the top of his class during the Advanced Individual Training (AIT) held at Sheppard Air Force Base. Currently holding the esteemed rank of First Lieutenant as an Army Officer, Arun contributes significantly to the United States Army Medical Corps, specializing in the role denoted by the MOS code 70D. Throughout his tenure, he maintained a secret security clearance, showcasing a high level of trust and responsibility in his role within the armed forces.