CPA Ms. Aurelia Rono serves as the Principal Secretary for the State Department for Parliamentary Affairs within the Office of the Prime Cabinet Secretary (OPCS). In her role, she is the link between the Executive and Parliament, facilitating the execution of Government business within Parliament. Her responsibilities encompass close collaboration with the two Majorities in the Bicameral Legislature.

One of her core duties is to strengthen initiation of policies and the legislative framework across government ministries, departments, and agencies (MDAs). This is essential in ensuring that government affairs align seamlessly with legislative priorities. Additionally, Ms. Rono takes a proactive role in coordinating and monitoring the implementation of Kenya's National Development Agenda, a critical component of the nation's progress.

Ms. Rono's academic journey is marked by significant accomplishments. She holds a Master's degree in Business Administration from Jomo Kenyatta University of Agriculture and Technology (JKUAT) and is a registered member of Institute of Certified Public Accountants – Kenya (ICPA-K). Her commitment to learning is ongoing, currently pursuing doctoral studies in Business Administration Finance at the University of Kabianga. Her educational foundation includes a Bachelor of Education in Science from Egerton University, where she graduated with honours in 2007.

Before her appointment as Principal Secretary, Ms. Rono served as a National Elections Board member for the UDA party, contributing significantly to the formation of the current Kenya Kwanza Government. Throughout her career, she has shared her expertise through teaching roles in Economics, Accounting, and Business Finance at institutions such as Bomet University College, Maasai Mara University, Nairobi Institute of Business Studies, and Jomo Kenyatta University of Agriculture and Technology (JKUAT). Her dedication to education was evident in her earlier positions at Muthiga Model High School and Chemaner Secondary School.

During her tenure as a nominated member of the Bomet County Assembly from 2013 to 2017, she served as the Chairperson of the Budget and Appropriation Committee for two years.

Beyond her official responsibilities, Ms. Rono is a passionate grassroots mobilizer actively engaged in various community-based development initiatives. Her dedication to community service led to her appointment to the Kenya Red Cross Executive Board. She has been a World Vision trainer of Community-Based Organizations (CBOs). Furthermore, she holds the position of chairperson for several school Boards of Management (B.O.M).