Ms. Jill Cortier began her journey with Pasco County Schools in 2007 as a Science Teacher at J.W. Mitchell High School, where she taught Integrated Science and Biology for three years. While teaching, Ms. Cortier was instrumental in rewriting the Pasco School District curriculum maps for Integrated Science. She also served as the committee chair for the formation and implementation of Mustang University – Ninth Grade Academy. 

In July of 2010, Ms. Cortier was promoted to Assistant Principal at J.W. Mitchell High School. She is a valued leader who takes decisive action to improve teaching, learning, and student success. Not only does she oversee the school counselors and academic advisors, but she also develops the school’s master schedule. Ms. Cortier ensures all students and families are well informed of each opportunity available to them. She conducts classroom walkthroughs and supports teachers' professional development and the evaluation process. She monitors PLC (Professional Learning Community) groups, coordinates quarterly data chats, and participates with other school leaders on the district-level Secondary Design Team. Ms. Cortier also coordinates the Extended School Year remediation program. 

Ms. Cortier has a full plate but always makes time to develop strong, genuine relationships with students as she is involved in school-sponsored clubs and the Band Booster.