[1][2] He received an academic internship at the Shell Gabon oil company in 1972, and in 1973, became an official in charge of training and recruitment; he was also appointed Secretary-General of Civil and Commercial Aviation in the same year.
[3] He held the position of Minister of Postal Services, Reform and Semi-Public Firms, Tourism, and National Parks until being dismissed from the government on 4 February 1978.
[1][5] Mayila participated in the negotiations that led to the signing of the Paris Accords between the government and the opposition in 1994 and was then appointed Minister-Delegate under the Prime Minister in charge of Decentralization and Mobile Security.
[6] At the time of the November 2005 presidential election, he worked on Bongo's re-election campaign as President of the Commission for Gabonese Abroad.
[6] Mayila, still awaiting the legalization of the UPRN, met with Bongo on 3 October 2007 to explain the difficulties his new party was experiencing and "to resolve misunderstandings".
[10] On 12 January 2008, Mayila held a press conference to announce that the party had been legally recognized and would therefore participate in the April 2008 local elections.
Immediately following the coalition's selection of Mamboundou, Mayila told the press on 21 July 2009: "You have asked for a single candidate for the opposition ...
The other two main candidates, Ali-Ben Bongo and André Mba Obame, also claimed victory, but Mayila said that the figures he provided, which included a breakdown of votes from each province, "demonstrate[d] clearly" that Mamboundou was the winner.