He attended the National School for Administration from 1966 to 1968, graduating with a degree in civil engineering.

[2] Hamadi met with Romania's former foreign minister, Titus Corlățean, on 29 September 2012.

Both foreign ministers discussed about the possibility of reestablishing relations between the two countries.

While there, he spoke about the crises in Mali and Sahel with Ban Ki-moon, the Secretary-General of the United Nations.

[4] A few months later, on 18 September 2013, Hamadi was replaced by Ahmed Ould Teguedi as Foreign Minister in a Cabinet reshuffle.