Through junior and senior high school, Akiba attended Eiko Gakuen, where he was part of the soccer team.

[1][2][3] Akiba was sent to receive English language training at the Fletcher School at Tufts University in the United States.

As a diplomat Akiba held foreign postings in the embassy to the United States besides internal service as the Ministry mainly with the Treaty Bureau and the Minister's Secretariat.

He was promoted to deputy foreign minister for political affairs (外務審議官, Gaimu Shingikan) in June 2016.

Akiba was deeply trusted by Prime Minister Shinzo Abe and Chief Cabinet Secretary Yoshihide Suga, and played a central role in formulating and promoting the concept of the Free and Open Indo-Pacific.