Raised in Washington, Katie attended Maryland Bible College and Seminary and later earned a Bachelor of Biblical Studies from Tacoma Bible College.
She served as a missionary in Argentina, where she began teaching ESL and later earned her TESOL certificate. Upon returning to the United States, she taught ESOL and Spanish to both youth and adults.
Mrs. Mazino currently teaches high school Spanish, Economics, and Technology. She and her family are part of the GGCA community, with all three of her children attending the school.