Opposition leader Mohammad El-Baradei was sworn in Sunday as vice president for international relations, the presidency said in a statement.
Interim President Adly Mansour has earlier appointed the former UN nuclear chief as his vice-president.
El-Baradei was among the figures who met military chief and Defense Minister Abdel Fatah al-Sisi and agreed on a roadmap for Egypt that included the ouster of elected President Mohammad Morsi, temporary suspension of the constitution and naming the head of the constitutional court as interim president.
The leader of the opposition National Salvation Front, an umbrella alliance of liberal and secular parties, took the podium in the same press conference with Sisi to uphold the measures.
He also went on a charm offensive through interviews with major international media outlets, insisting that what happened was not a military coup as they reported.
The Egyptian presidency had backtracked on appointing El-Baradei as new prime minister, hours after the Salafist Nour Party vocalized vehement opposition to such a move.
El-Baradei returned to Egypt in 2010 after having served two terms as chief of the UN International Atomic Energy Agency (IAEA).
Following his return, the diplomat championed a campaign for change and became a prominent opponent of then President Hosni Mubarak, who had led Egypt since 1981.
El-Baradei joined a coalition with all opposition forces in Egypt at the time, including the then banned Muslim Brotherhood, to offer an alternative for the oppressive Mubarak regime.
They spearheaded a campaign to gather million signatures to demand change.
El-Baradei won the ire of the Mubarak regime and its media proxies who immediately launched a smear campaign against him.
Many saw El-Baradei was the inspiration behind the 2011 January Revolution that toppled Mubarak, though critics took issue with his departure in the days leading up to the popular uprising and his return only after its start.
El-Baradei refused to run for the presidential elections organized by the military council that took over from Mubarak, insisting Egypt must first write a constitution and then organize elections.
He led the opposition against the Muslim Brotherhood regime since the election of its senior leader Mohammad Morsi as president in June 2012.
englishnews@aa.com.tr
