Leadership Team

Founder and Co-CEO - Mrs. Tatyana Chayka, M. Ed.

Mrs Tatyana Chayka

Tatyana Chayka graduated with a Master's of Science in Secondary Education with a focus on Mathematics from Tashkent State Pedagogical Institute in Tashkent, Uzbekistan. She also obtained a Master's of Educational Leadership and Supervision with a focus in Business from the Arizona State University Leadership for Education Entrepreneur Program. Mrs. Chayka is secondary education certified and has over twelve years of teaching experience and twelve years of school administration experience. In 2000, she founded the first school in the AMS network, the Academy of Math and Science in Tucson, Arizona, and has remained the CEO of the network throughout its sixteen-year history.

 

Chief Executive Officer - Mr. Kim Chayka, BS

Kim Chayka - AMS CEO

Mr. Kim Chayka graduated Magna Cum Laude with a Bachelor's of Science in Business Administration from the Eller College of Management. Mr. Chayka is a published author in the Journal of School Choice and is a fellow of New Schools for Phoenix. He has also received the Hamer award from Glenn Hamer, president of Arizona Chamber of Commerce and Industry. Mr. Chayka has over 10 years of experience at the Academies of Math & Science and currently oversees all expansion efforts. 

 

Chief Operating Officer – Mr. Erik Greenberg, MBA

Erik Greenberg - AMS COO

Mr. Erik Greenberg joined AMS in February 2019 and serves as the COO. In his capacity, Erik works closely to support AMS schools in the areas of Marketing, Enrollment, Human Resources, Talent Acquisition, Data Analytics, and Facilities. Erik has spent his entire career in education serving in various leadership capacities in both Higher Education and Early Education. He is very passionate about education, particularly providing equal opportunities for education to all students.
Prior to joining AMS, Erik served as VP of Operations for Early Education schools. He led operations for over 20 schools in various states in the Western United States. In that role, he learned how vital education is in the early years of a child’s life. Prior to that, Erik spent over a decade in Higher Education. Starting his career in enrollment services, Erik worked closely with working adults to pursue their educational aspirations. Throughout his time, he led larger enrollment teams and eventually lead entire campus teams serving as Campus President in both Washington D.C. and Dallas, Texas.
Erik has a bachelor's degree in International Business and a Master’s in Business Administration.

 

Chief Financial Officer - Mr. Steven Hykes, BS, CPA

Steven Hykes - AMS CFO

Steven Hykes graduated with a Bachelor of Science from the University of Akron with a minor in Economics. He began his career in public accounting working in the fields of audit, tax and mergers and acquisitions for both Deloitte and PricewaterhouseCoopers. Steven received his Certified Public Accounting license from the state of Arizona in April of 2015. He has a diverse background having managed restaurants, volunteered overseas, and done both educational and non-profit work. Most recently he was the Chief Financial Officer of United Way of Tucson and Southern Arizona, where he spent three years overseeing various financial aspects of the business.  Steven joined the AMS network in January of 2016.

 

Chief Academic Officer - Nate Lowry

Nat Lowry Chief Academic Officer

Prior to joining AMS, Nate was an Executive Director for IDEA Public Schools in the Greater Austin area, where he oversaw 16 high performing schools serving almost 10,000 scholars K-12 all in high poverty neighborhoods. As Executive Director, he achieved 100% matriculation for their senior classes, and he led the region to increased performance on state assessments, leader and teacher retention, and scholar persistence.
Before managing the entire Austin Region, Nate served as a Vice President of Schools for IDEA, where he significantly increased principal retention, helped orchestrate school turnaround, and set strategy for program and talent development. Serving as IDEA Public School’s VP of Leadership Development, he designed and implemented school leader training for a network of over 70,000 scholars across multiple states. He was the founding principal of IDEA Weslaco Pike winning recognition at the state and network level for high levels of scholar achievement, and during his tenure as campus principal, Nate led IDEA Montopolis College Preparatory to be the only school in east Austin to earn a TEA “A” Rating in 2018.
Nate is a proud Cornell University graduate, and also holds a Master’s Degree in Educational Leadership from Columbia. He strongly believes in holding all students and adults to high expectations, and is focused on finding innovative programming that closes the experience gap for all students .

 

Chief Information Officer - Robert Biggs

Robert Biggs - AMS CIO

Robert Biggs is the Chief Information Officer for AMS. His career started in the Department of Entomology at the University of Arizona where he studied the effects of genetically modified crops insect pest populations. After gaining an interest in Information Technology while building IT tools to manage data collection and presentation at the U of A, Mr. Biggs transitioned to a career in technology. Throughout his career he has managed many IT implementation projects that touch on a wide varieties of technologies including networking, server systems, communications, line-of-business applications (EHR, CRM), and cloud solutions. He has built and managed teams of IT professionals, emphasizing skill-building and career progression. He has provided CIO services to many for-profit and non-profit organizations in various verticals including Medical, Public Safety, Education, Retail and Government. Mr. Biggs joined AMS in September 2017.

 

Director of Schools and School Leadership - Melissa Fields

Director of Schools and School Leadership - Melissa Fields

In her almost 25 years in education, Melissa has taught K-8 in various capacities, coordinated a variety of programs such as Assessment, Gifted, RT and PBIS. Melissa is a certified Capacity Building Coach as well as a certified PBIS coach. She designed and implemented one of the first RTI programs in Arizona to be approved for special education referrals and served on the committee to advise legislators on SB1197. Melissa has been a vice principal, coached many school teams in various improvement initiatives for the AZ Dept of Ed, and worked for the AZ State Charter Board evaluating charter school programs. 

 

Before joining AMS, she was both a founding and turnaround principal for BASIS, coached multiple vice principals into principal roles, and served in a DOS capacity at the network office as well. She earned a M.S. in Organizational Leadership and a BA in Elementary Education from Grand Canyon University and Prescott College. On a personal note - Melissa has a 16 year old son and an 18 year old daughter graduating high school this year, as well as 2 dogs. Some of her favorite things to do are to drink coffee, hike, travel, and attend concerts.

 

Director of Schools - Sarka White

Director of Schools - Sarka White

Šárka’s almost 3 decades of experience in education have earned her several honors including the Teacher of the Year award in 1998, 1999, 2001, the NASA innovative Science Leadership Award in 2001, and USDA and Wyoming’s State/National educational leader award in 2007. Before serving as Regional Director of Schools, Šárka served as Human Resource Director for Winslow Unified School District, Curriculum Manager for StrongMind, Director of Research, Data, and Development for KUSD, Education Director for Wyoming Dept. of Agriculture and USDA, Trainer, Elementary, Middle and High School Principal, Dean of Students, College Faculty and Teacher. She has trained and coached over 10,000 teachers and leaders, who have all gone on to lead dynamic schools nationally and internationally. 

 

She started her career in education as an international Kindergarten and High School American Economics teacher in Linguistics school Moscow #1157 and then as an International Baccalaureate Science teacher in Colorado. Additionally, she engaged in work of school innovation through RELAY Graduate School of Education in 2017 where she worked with her own school community and larger network to improve education for all scholars. She earned her B.A. in Education from University of Wyoming and M.Ed. And Ed.D/CI in educational leadership and curriculum and Instruction.

 

Regional Director of Operations - Josh Duerr

Regional Director of Operations - Josh Duerr

Josh has a dynamic blend of operations and education experience. For the past 6 years, he served as the Executive Director of a multi-site church in North Phoenix where he oversaw the operations, finances, and facilities of each of the church’s campuses. Josh also led their strategic planning and data analysis for the expansion efforts for each of the new campuses across the Valley.

 

Prior to serving as the Executive Director, Josh worked in a charter school network in South Phoenix for 6 years, where he taught middle school math and science and served two years as the Dean of Students. Josh has a Master’s in Business Administration, a Master’s in Educational Leadership, and a Bachelor’s of Science in Elementary Education.

 

Regional Director of Operations - Dara Wieser

Regional Director of Operations - Dara Wieser

Dara grew up in Flagstaff Arizona where she earned her bachelor's degree from Northern Arizona University.  She also earned her MBA from University of Phoenix. 

 

She has more than 20 years experience in diverse senior leadership positions in both private and nonprofit environments with majority spent in the education sector. Her past roles include leadership related to human resources, project management, operations management, ethics and compliance, enrollment and retention. 

 

Director of Human Resources - Emily Willis

HR Director Emily Willis  

 

Director of Curriculum and Instruction - Blanca Payne

Director of Curriculum and Instruction - Blanca Payne  

 

Director Exceptional Student Services- Mr. Ettor Strada

Director Exceptional Student Services- Mr. Ettor Strada  

 

 

Director of Talent – Craig Peterson

Director of Talent – Craig Peterson  

 

 
 

VP of Marketing – Caylee Migliorini

VP of Marketing – Caylee Migliorini  

 

 

VP of Enrollment & Data Compliance - Brandi Adams Bressler

VP of Enrollment & Data Compliance - Brandi Adams Bressler  

 

 
 
 
 
Exceptional Student Services:
 
Director Exceptional Student Services- Mr. Ettor Strada
 
Assistant Director Exceptional Student Services – Natalie Trainor
 
Exceptional Student Services Compliance Manager - Andrea Padilla
 
Exceptional Student Services Records Clerk - Cassondra Forste
 
Exceptional Student Services Coordinator Phoenix - Phil Meilahn
 
Exceptional Student Services Coordinator Tucson - Kristin Enger
 
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