Before becoming chief of staff, he had served as the commander-general of the National Armed Forces Academy, Advisor for General Planning in TNI HQ, and commander of the western fleet.

Born in Cimahi, West Java on 14 May 1962, he underwent normal civilian education and finishing his high school studies on 1981.

[4] In August 2013, he held the rank of commodore (Indonesian: Laksamana Pertama) and was appointed as the chief of staff for the Eastern Fleet Command.

[9] In late January 2018, then-navy chief of staff Ade Supandi brought him forward alongside four others as possible candidates to replace him, as he was planning to retire by June.

[10] After armed forces commander Hadi Tjahjanto brought the five names forward to president Joko Widodo, the latter picked Siwi.