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John Rollack is the human resources manager at PLI. He is tasked with leading our HR team and brings over 20 years experience in the field of education. He began his career as a special education teacher in 2000 and transitioned into school administration in 2006. John served as a principal at a middle school and a large STEM high school. He transitioned into human resources and recruiting in 2015. John decided to join PLI in February 2020.

Dustin Mathias grew up in Ohio and graduated with a bachelor’s degree in integrated mathematics from Ohio University. Upon graduation, he moved to Southern California where he served as a high school teacher for 8 years and earned his master’s degree in Educational Psychology. Dustin then transitioned from teaching into project management and curriculum writing for an education company before joining Proximity Learning in 2020. In his free time, he enjoys playing and watching basketball, attending concerts, and going to the beach.

Marcia Hammond retired from public education after 27 years in North Carolina. She served in several different roles during her tenure including the role of Vice Principal at a High School where she'd taught Science classes for over 14 years. She also taught Science at a Magnet school and then transferred to a Middle School (7th and 8th grade classes). During her last few years of teaching there, Mrs. Hammond taught the semi-separate setting class for students with special needs (General Curriculum). She joined Proximity Learning, Incorporated and enthusiastically took over Physics classes. She then added on some Middle School classes, as well. Mrs. Hammond is willing to jump at the chance to grow and take on challenges; she has helped in writing content and is currently serving as a Talent Acquisitions Specialist.