Almaguer received an undergraduate degree in Studio Music and Jazz from the University of Miami. He spent about twelve years as a record producer with his production company Mor 2 D'Pop Productions, a music publisher through Rhythm Time Publishing, BonVox Music and NCR Publishing and an entrepreneur through his record label Next Century Records distributed by BMG with his long-time music collaborator Enrique "Kiki" Garcia (best known as one of the original members of Miami Sound Machine and writer of hits like "Conga", "Rhythm Is Gonna Get You", "123" and "Dr. Beat")
Almaguer worked with some of Latin pop's biggest names including Julio Iglesias, Chayanne, Azúcar Moreno and José Luis Rodríguez "El Puma" and lived in Dubai (UAE) and London, England and Miami where he worked as a DJ in some of those cities most important clubs at the time.
Hector Almaguer tells the story of how in the middle of a very successful music career, he felt his skills on the business side were lacking and it was then he decided to attend law school. He explained "I wanted to be the best music business executive possible, and at that point of my career, I was dealing more and more with the major labels, other music publishers, licensing our music worldwide, dealing with artist managers and it was getting pretty thick. I knew how to make music, but the contracts left me feeling like I wasn’t in the game like I needed to be." So, while running these very successful music businesses, Hector Almaguer attended law school at the University of Miami and emphasized his studies there in intellectual property.
Soon after graduating Hector Almaguer opened his own law practice representing other musicians, writers, record labels and producers. His clients say that his experience gave him an insight that most lawyers simply don’t have. From there he went into the international television industry heading the business affairs department at HBO Latin America Group. Among other accomplishments there, he developed and created rights clearance processes and procedures for original programming produced internationally before accepting the position as the Senior Vice President of Business and Legal Affairs for Universal Music Latin America.
Hector Almaguer then accepted the lead legal role for VIACOM International Media Networks - The Americas. In his role as General Counsel, Hector Almaguer supervised all commercial and legal operations for MTV, Nickelodeon, Comedy Central, Vh1 and other brands owned by Viacom in Latin America and Brazil, as well as Tr3s: MTV, Música y Más in the US.
- "Hector Almaguer has been named Senior Vice President of Business and Legal Affairs for Universal Music Latin America" (Press release). Universal Music Group. 2007-10-01. Retrieved 2007-11-13.
- "Hector Almaguer appointed General Counsel for VIACOM International Media Networks - The Americas" (Press release). Todo TV News. 2012-07-30. Archived from the original on 2013-02-04. Retrieved 2012-07-31.
- "Héctor Almaguer asume como VP y Consejero General de VIMN The Americas" (Press release). TV Latina. 2012-07-30. Retrieved 2012-07-31.
- "Hector Almaguer Joins Viacom International Media Networks The Americas" (Press release). Miami Herald. 2012-07-30. Retrieved 2012-07-30.