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Meet Our Staff

Bringing students the best content and industry experts. 

Founder and Head of Schools of 7Pillars

Founder and Executive Director of YouthServ360, Inc. a non-profit with over nine years of experience serving Clayton County and Metro Atlanta Youth. An Educational Leader and Instructor offering 14 years of consummate success educating urban students in the inner city, and suburban environment.


While in the classroom each year Ms. Guillen’s students scored at least 20 percentile points above the county average in Science and Social Studies; subjects that typically show the weakest standardized test scores. As a department chair for four years, she was responsible for curriculum evaluation, selection, and implementation for both Science and Social Studies.


As Executive Director she has extensive experience with managing federal funds including grant acquisition, federal compliance, and data management. A variety of programs has provided experience with agencies critical for school success; such as 6 years experience as a USDA contractor, 9 years experience as a DHS contractor, and 8 years experience operating as the fiscal agent for over 3 million dollars in federal and state funds.


As a leader, she possesses the unique ability and skills needed to ensure, teachers, students, staff, parents, community partners, and stakeholders have what they need to render successful results.


University of Georgia 40 Under 40 Alumni honoree 2019, but first and foremost, Ms. Gullien is a graduate of the Clayton County School System. E.W. Oliver Elementary, Riverdale Middle, Riverdale High School and a Graduate of the University of Georgia.

Our School Leader | Christina Guillen

Our Staff

Nikol West


Deidre Green

SEL/Social Worker

Chef Micai St. Clair

Director of Nutrition/Culinary Arts Instructor

Stephanie Conley

Assit. Principal/Dean of Students  Academic and Student life

Jessica Willis

Director of Finance and Operations

Jacqueline Perez

Executive Administrator

Joyce Guillen

School Nurse

Tina Magsby


Tevina Haircrow

Lead Instructor / Math 

Ronald Mack

Social Studies/ELA/SPED

Nia Reese


Artavia Taylor


Addie Patricia Bennett


Danielle Jackson

Career Development/Computer Science