After completing the degree in Audiovisual and Multimedia Production, where he obtained the highest grade of his promotion, Gerard H. Sierra began his professional career in the Catalan Corporation of Audiovisual Media. During a season he became an assistant of realization in the program Info-K, of the channel Super3, and occasionally, collaborated in some reportage of the television news on TV3.
Months later, Gerard studied a year in the UK at the University of Northampton. There he attended the Bachelor in Media Production & Moving Image, obtaining the First-Class Honors Award.
Once he returned to Catalonia, he continued his professional career as a freelancer, creating Fiiiu, a studio specializing in graphic design and Web pages, video editing and audiovisual graphics. Some of the works highlighted as freelance are the corporate image of Rumescu or the website of the Federation of Public Safety Professionals of Catalonia.
Later, he combined work as a freelancer with work at the creative agency Llumsmedia, in Barcelona. There he has created projects for renowned companies such as ESADE or RAC105.