Operation Big Serve Founders

President & Co-founder

Pastor. Mark Karmolinski

Mark has more than 10 years of experience advocating for the homeless, and working with community leaders to increase awareness about homelessness. Mark has also served as board President of Resurrection Street Ministry and has sat on numerous other boards including an advisory board and committee for EVIT in Mesa.

Operation Big Serve Founders

Vice President & Co-founder

Pastor. Catherine Karmolinski

Catherine is dedicated to ending homelessness. Previously, she served as a director of a preschool, where some of the families she worked with were homeless.

Board Member

Nicole Hogan
Nicole Bailey-Hogan is an executive assistant with TDIndustries.  In this role, Nicole works in partnership with the president, supporting six different business units out of their Arizona office.  As a big believer in repaying kindness to others, upon moving to Arizona she connected with Mark and Catherine Karmolinski at Operation Big Serve in 2015.  Together, with other volunteers, they have helped to feed and provide supplies to thousands of homeless and transitional veterans in the Phoenix Metro area.

Nicole is no stranger to volunteer work, having spent 20+ years serving Lakeland Animal Shelter (Elkhorn, WI), 15+ years with Twin Oaks Shelter (Darien, WI), 10+ years with both YouthBuild and Youth Conservation Corps (Waukegan, IL) and most recently 4+ years with Child Crisis Center in Mesa, AZ.  Tasks with these groups include volunteering at events, organizing bake sales or property improvements, annual golf tournaments and donation drives.

Board Member

Tina Oluyi

Tina Oluyi is a Program Supervisor for Child and Family Resources where she provides leadership, oversight and vision for work that promotes school readiness.  At CFR, she leads a team that provides families with child development knowledge and parenting support. Tina also was a Parent Awareness and Community Outreach Coordinator for First Things First, Special Education Teacher for Mesa Public Schools, and began her career as a journalist. She has been an active community volunteer, serving the homeless and working poor throughout the years at St. Vincent de Paul, Church on the Street and St. Luke’s at the Mountain Episcopal Church. 
Tina has a BS degree from the Fashion Institute of Technology, a MJ degree from the University of North Texas, and a M.Ed. degree from Grand Canyon University.

Board Member

Nancy Southworth

Nancy served as President of Mesa Evening Optimist Club for 2 years, She also holds 2 college degrees, and has been a board member with Operation Big Serve since 2017. She has been involved in volunteering for non-profits since 2015. Nancy has experienced homelessness while dealing with her past addictions. With dedication and the hard work she has put fort she has been able to be clean and sober for 21 years.
Nancy is a loving mother of 2, grandmother of 6, and great grandmother of 2. She continues to have a relationship with God and has been what guides her through her life and past struggles.