Gurmendez was born in Montevideo within a family with long ties to the Colorado Party, and graduated from the University of the Republic with a degree in electrical engineering, also obtaining diplomas in economics and business management. Throughout his professional career he has served in the management of numerous companies and business groups, such as the Cancún International Airport.
Gabriel Gurméndez Armand-Ugon was born in Montevideo on July 4, 1961, the eldest son of Máximo Gurméndez, a lawyer who served as minister of the Electoral Court and as ambassador to Mexico between 1985 and 1990, and Margarita Armand-Ugon, a mathematics teacher.[4] His paternal grandfather was the diplomat Carlos María Gurméndez who, while serving as ambassador to the Netherlands during World War II, saved 25 Jewish families from the Nazis by granting them Uruguayan passports or appointing them to positions in the embassy.[5]
In 1993 he was employed in the financial administrative department of the textile company Sudamtex.[10] However in 1994 he resigned to assume the position of general manager of Consorcio Aeropuertos Internacionales S.A. He led the construction of the Punta del Este International Airport, which he also managed for eight years.[11] Between 2001 and 2002 he was president of the Tourism and Development League of Punta del Este.
In 2004 he was appointed as executive director of Cancún International Airport in Mexico, managed by Grupo Aeroportuario del Sureste (ASUR).[12] In that position he directed the expansion of Terminal 3, inaugurated by Mexican President Felipe Calderón in 2007, as well as the second runway and control tower project, which was one of the most ambitious investment programs for airport infrastructure in the country.[13]
From 2015 to 2020 Gurméndez served as CEO of HRU S.A, the management company of the Hipodromo Nacional de Maroñas and concessionaire of different racecourses in the country.[14] In 2017 he became part of the board of directors of HRU S.A, as well as the Codere Uruguay Group, a business group of which he also served as country manager.[15][16]
In June 2020, he was appointed president of ANTEL, following the resignation of Guillermo Iglesias at the request of President Luis Lacalle Pou.[20] He resigned on October 26, 2023 to run for president of Uruguay in the 2024 Colorado Party primary.[21] In the election, he came in third place with 18.6% of the votes for the party.[22] In August, he confirmed that he would form an alliance with Pedro Bordaberry's Vamos Uruguay sector.[23] In the general election, Lista 10 was the most voted electoral list of the Colorado Party, and Gurméndez was elected to the Chamber of Representatives for the 50th Legislature.[24]