Meet the Executive Administration

David Cetlinski 
Executive Director
David Cetlinski was promoted to Executive Director of the Retirement System of the City of Detroit in September 2017. Mr. Cetlinski previously served in the role of Assistant Executive Director of the Police and Fire Retirement System for six years, and has served the city and pension system in varying capacities for more than 24 years. Mr. Cetlinski oversees the day to day operations of the retirement system and staff.


Gail A. Oxendine 
Assistant Executive Director, GRSD
Gail A. Oxendine is currently serving as the Assistant Executive Director for the General Retirement System of the City of Detroit.  Ms. Oxendine is responsible for the day-to-day operations of the General system, including various administrative and human resources functions.  She has over 30 years of experience with the City of Detroit as an administrative professional, and 10 years of executive leadership experience. Ms. Oxendine also served as an elected Trustee of the General Retirement System for two years. 


Kelly Tapper
Assistant Executive Director, PFRS
Kelly Tapper was appointed Assistant Executive Director for the Police and Fire Retirement System in January 2018. She is in charge of the day-to-day operations for the Police and Fire system, and draws on extensive direct experience in her previous role as Division Director of the Wayne County Retirement System. She served in that capacity for six years before joining the Police and Fire Retirement System. Ms. Tapper’s previous experience in the private sector includes service as Vice President of Charter One Bank, and Business Banker with TCF Bank and Huntington Bank. Ms. Tapper holds a Bachelor’s in Business Administration from Davenport University.


Ramzee Jackson
Chief Accounting Officer
Ramzee Jackson joined the Retirement System of the City of Detroit in 2018 as Chief Accounting Officer. Mr. Jackson is a Finance and Accounting professional with over 19 years of cross-functional experience, including but not limited to budget development, financial reporting, financial analysis, and business management primarily in the governmental sector.  He obtained a Bachelor’s of Science in Accounting from Alabama A&M University in 1999, a Master of Science in General Administration from Central Michigan University in 2004, a Graduate Certificate in Finance from Walsh College in 2006, and an Executive Certification in Leadership and Management from the University Of Notre Dame’s Mendoza College of Business in 2010. Prior to beginning his service at the retirement system, Mr. Jackson served as Chief Financial Officer of the 36th District Court for three and a half years.


Ryan Bigelow
Chief Investment Officer
Mr. Bigelow joined the Retirement System of the City of Detroit in 2011 and became the System’s first Chief Investment Officer in 2013. Prior to his time with the retirement system, Mr. Bigelow was a Senior Investment Officer with the State of Alaska pension where he was responsible for the management and performance of the $8 billion public equity and $4 billion defined contribution portfolios. Mr. Bigelow and his team work directly with the Boards and Investment Committees and are responsible for investment implementation of the $2 billion General Retirement System and $3 billion Police & Fire Retirement System.