Career
He joined the Eritrean People"s Liberation Front in 1972. Since independence, he has held the following positions:
Secretary of Finance
Head of Finance in the Eritrean Defence Forces
Director-General of Inland Revenue
Brigadier General
He was educated at the University of Wisconsin–Madison, where he received a masters degree in finance and economics. As of 2005 he was in prison with the G-15.
Seyoum has fathered 5 children: Shewit, Ariam, Miriam, Kibrom, and Natnael.