Prior to his designation as OIC-Executive Director, Atty. Estevez served as Undersecretary of the Presidential Legislative Liaison Office (PLLO) in the House of Representatives. Atty. Estevez entered government service as a legislative staff member in the Senate and in the House of Representatives after passing the bar exams in 2007. He had the unique privilege of serving two generations of Senate Presidents in this country.

As Undersecretary for PLLO, he assisted the PLLO Secretary in promoting Presidential initiatives and acted as a conduit between the Office of the President and the individual members of Congress, non-government organizations (NGOs), and other cooperative interest groups supportive of the President. He assisted in the drafting of bills and resolutions to ensure that policies and bills were in consonance with the legislative agenda of the President or the Administration. He left the PLLO on June 2, 2020, to join the CHED and UniFAST.

Before joining the government, he taught music, religious education, humanities, and law courses in public and private higher education institutions (HEIs). He also gave lectures on Mandatory Continuing Legal Education (MCLE) was a well-known lecturer on Federalism and served as an adviser to various civic and non-government organizations.

Atty. Estevez finished his Bachelor of Arts in Philosophy at the Rogationist Seminary College - Adamson University, his Bachelor of Laws at the University of Santo Tomas Legazpi Inc., his Master of Arts in Religious Education at the Ateneo de Manila University, and his Master of Arts in Public Policy at the National Graduate Research Institute for Policy Studies (GRIPS) in Tokyo, Japan, both as a University Scholar. Relatively, he finished his Doctorate in Public Administration at La Consolacion University Philippines. He also completed an Executive Course on Leadership, Innovation, Communication, and Knowledge Management at the Development Academy of the Philippines - Graduate School of Public and Development Management (DAP-GSPDM) and received a special citation award for his Superior Policy Foresight Paper entitled “RLE (Responsive, Live, Easy) UniFAST Assistant." He also finished an Executive Course in the Global Academic Leadership Program at the Asian Institute of Management (AIM).

Atty. Estevez is also appointed as the Deputy Executive Director of CHED but is presently dedicating himself as the OIC, Executive Director of UniFAST Secretariat, which supports the UniFAST Board in carrying out its functions under Republic Act 10687, otherwise known as the “UniFAST Act,” and in implementing student financial assistance programs under RA 10931 or the “Universal Access to Quality Tertiary Education Act.” He served as Chairperson of the Search Committee as well as the Evaluation Committee for the President of various State Universities and Colleges in this country. He served as the OIC University President of Sorsogon State University in July 2022 and Bukidnon State University from October 2022 to February 2023. A lawyer, a teacher, a public finance specialist, and a public servant.