With a career spanning nearly 30 years, Randolf Castellanos is recognized as a leading authority on labor law in Guatemala. He regularly advises domestic and foreign companies, as well as government institutions, on complex labor law and employment litigation matters.

Randolf regularly speaks at government sessions and represents the country at international labor law events. He was the representative at the first Spanish-American Forum on Labor Law and was a rapporteur at the IX Central American and Caribbean Congress on Labor and Social Security. He was a reviewer for the proposed Civil Service Law Bill for the judicial branch. In 1995 and 1996, he was appointed auditor for the elections process by the Supreme Electoral Tribunal.

Randolf is a professor and thesis advisor at Rafael Landivar University. He also serves as a thesis advisor at the University of the Istmo and the Dean of the Professional Section at the Universidad de San Carlos de Guatemala. He is a regular speaker for meetings of the Chamber of Commerce and the Rotary Club and national conferences, such as the First Guatemalan Congress on Labor Law and Social Security and the Legal Congress of the Bar and Notary Association of Guatemala. He has been a guest panelist on television programs, such as Our World in the Morning and Faces and Voices, and radio programs, such as Labor Focus on Radio Universidad.

Prior to joining BDS Asesores and Littler Global, he was a founding partner of the law firms Castellanos, Estrada & Associates and Castellanos & Associates.