A member of SWAPO, Pandeni was Minister of Regional and Local Government, Housing and Rural Development at the time of his death in 2008.
After his release, Pandeni became the founding Secretary of the Namibia Food and Allied Workers Union (Nafau) until 1992.
In that year he entered politics, serving as Regional Councillor for Soweto constituency in Katutura, Windhoek.
He was a distant relative of fellow Robben Island prisoner turned SWAPO politician Petrus Iilonga.
Pandeni is buried alongside other former liberation leaders at Heroes' Acre, outside of Windhoek, the Namibian capital.