Giampietri was born on December 31, 1940, in Bellavista, Callao region, Peru.
He completed qualification studies and held various public positions during his 40-year-long service in the Navy.
Similarly, Giampietri was elected Congressman in the same five-year period.
During that time, he was commissioned to chair the extraordinary high-level commission in charge of organizing the 2008 Asia-Pacific Economic Cooperation (APEC) meeting in Peru.