Omar is originally from Santa Monica, California where he grew up in the Pico neighborhood. His family has migrated between Santa Monica and the region of Los Altos de Jalisco for three generations and Omar is first generation born in the U.S. Omar also identifies as first-generation college student, having attended UC Santa Cruz for undergrad where he majored in Latin American/Latino Studies and Politics, and was involved in the ChALE peer-mentoring program and an RA for his residential college, and was involved in establishing a chapter of his Latino-based fraternity at UCSC.

Before UCSD, Omar worked at Santa Monica College with the Black Collegians and Adelante Programs while attending CSU Los Angeles for his masters in Mexican American/Chicanx studies. Omar arrived at UCSD in 2013 to pursue his PhD in Ethnic Studies where his research focuses on "queer public memory." Omar's dissertation research focuses on the public responses to the deaths of Mexican singer Juan Gabriel, Mexican-born make-up artist Jacob Yebale, and the PULSE Nightclub shooting produce a queer afterlife. Through his dissertation research Omar is interested in seeing how public forms of mourning and remembering empowers LGBTQIA-identified people to narrate possibilities of queer life.

At UCSD Omar has worked with undergraduate students as STARS Advocate, SPACES Grad Mentor, and Instructor in DOC Writing Program and Ethnic Studies Department. He is passionate about helping graduate students create a sense of community at UCSD and has worked to do that through his roles at Grad Division and Engaged Teaching Hub.