Son of lawyer Manuel Pablo Olaechea Du Bois and Ana María Álvarez-Calderón Fernandini. By paternal line he is grandson of Manuel Augusto Olaechea, lawyer and politician; and great-grandson of Manuel Pablo Olaechea, Prime Minister of Peru of Nicolás de Piérola. By maternal line he is the grandson of Anita Fernandini de Naranjo, first female mayor of Lima. He studied at the Colegio de la Inmaculada and Colegio Santa María Marianistas. He has a bachelor's degree in Economics from Pontifical Catholic University of Peru. He also holds a Master of Business Administration from the Henley Management College. He has held management positions in the main trade union organizations in Peru, such as CONFIEP and the Association of Exporters. He was President of the National Society of Industries from 2009 to 2012; Vice President of Business Solutions against Poverty, among other organizations. In the private sector he has been Director of the Corporation of Development and Mineral Exploitation S.A. ; Vice President of Lima Leasing; Executive Chairman of Comercializadora del Marañón, and Managing Director of Minera El Futuro de Ica. Also Director of Viña Tacama S.A.; and Chairman of the Board of Directors of Fábrica de Envases S.A.. He was Honorary Vice Consul of Denmark in Peru from 2004 to 2016.
Political career
Congress
In 2016, Olaechea ran for Congressman representing Lima under the Peruvians for Change parliamentary list, also serving as a part of the technical team for presidential nominee, Pedro Pablo Kuczynski. He ultimately was elected to Congress for the 2016-2021 term, obtaining a majority of 41,669 votes. In Congress, he was appointed Vice Chairman of the Budget Committee. He is also a full member of the Defense Committee and heads the Special Multiparty Committee in charge of Legislative Planning. His good relationship with the Popular Force legislators, who make up the majority parliamentary group, has been highlighted. In 2018, he quit the Peruvians for Change parliamentary group and founded the short-lived Concertación Parlamentaria group, proceeding to form the Republican Action group afterwards. He is considered one of the most conservative congressmen to date, due to his strong opposition to the "Gender Ideology" teachings in the national educational curriculum. In 2019, he was elected to the Presidency of the Congress, defeating Daniel Salaverry's reelection ticket, receiving the support of the entire Popular Force party and numerous parliamentary groups of the opposition, although his ticket is composed of three Vice-Presidents from different factions.
