Shortly after graduating from the University of Hawaii at Hilo in 2008 with a degree in Political Science, Junior Aini returned to the Marshall Islands as a recipient of the Marshall Islands National Scholarship Program. In 2009, Junior started his career in The Foreign Service where he served as a Foreign Service Officer for the Office of Compact Implementation, a division under the Ministry of Foreign Affairs that operates as the focal point for all issues related to the Compact and its implementation. After three years of significant contributions to the Ministry of Foreign Affairs and various key Ministries and Agencies of the Government of the Marshall Islands, Junior accepted an assignment to be posted at the Republic of the Marshall Islands Embassy in Washington D.C.

Junior currently serves as the First Secretary for the Embassy of the Republic of the Marshall Islands to the United States of America where he assists the Ambassador in all issues related to the bi-lateral relation between the RMI and the United States, engages in wide-ranging issues related to the interest of the Marshall Islands, and oversees the daily operations of the Embassy.

In his free time, Junior enjoys basketball, drawing, and fishing. He is a proud father of three daughters.