Rowena Candice M. Ruiz is a lawyer by profession, having received her Bachelor of Laws Degree from San Beda College of Law. Prior to that, she took her pre-law studies at the De La Salle University. She recently obtained her Master of Laws in Globalisation and Development with Merit Honors at the University of London, through a Chevening Scholarship Programme of the United Kingdom.

Before assuming the position of Executive Director, she worked at the Department of Budget and Management (DBM) for more than ten (10) years where she last held the position of Director of the Legal Service. While at DBM, Executive Director Ruiz crafted special and general provisions in the proposed national budget and recommended the President's veto actions on the enrolled appropriations bill.

Executive Director Ruiz is no stranger to government procurement as she was part of the Technical Working Group on the revision of the Implementing Rules and Regulations of Republic Act No. 9184 and has been a recognized trainer of GPPB-TSO since 2014.