OUR TEAM. WORLD CLASS RESULTS.

Irina Jitomirskaia, Ph.D., M.Ed. CEO and Co-Founder
Irina Jitomirskaia, Ph.D., M.Ed. CEO and Co-FounderAdvising, Applications, Mathematics
Irina is a Co-Founder and CEO of 4Schoolers. As a mother and a teacher with a background in education, she always struggled to balance guaranteeing a quality education to her kids with her own work. This led her to found 4Schoolers to help other parents guarantee a quality and specifically tailored education experience.
Sophia Vaulina, M.A., COO and Co-Founder
Sophia Vaulina, M.A., COO and Co-FounderBusiness development and management
Sophia holds a Master’s Degree from Harvard in Finance. Formerly, she taught international students mathematics. She loves playing the piano, spending time with children, and exploring the outdoors.
Shuang “Apple” Li, M.S.
Shuang “Apple” Li, M.S.Chief People Officer SVP
Apple is responsible for developing partnerships with international organizations and families. She holds a Master’s in Project Management from Northeastern University.
Daniyar Aubekerov, B.S. Math & Computer Science
Daniyar Aubekerov, B.S. Math & Computer ScienceTechnical Lead
Daniyar holds a B.S. in Mathematics and Computer Science. His students won various international mathematical and coding competitions. Currently, Daniyar works on the implementation of the internal portal for 4Schoolers. During his free time Daniyar works on blockhain projects, implements trading algorithms and plays tennis.
Nicole Stabnikov, B.S. Employee Benefit Specialist
Nicole Stabnikov, B.S. Employee Benefit SpecialistEmployee Benefit Sales
Nicole holds a B.S. in International Management. She has been working with students as an advisor for six years. With her intimate knowledge of the business and industry, she mostly helps businesses find their Employee Benefit needs with 4Schoolers.
Pierreport Johnson III, M.A. Business Development Specialist
Pierreport Johnson III, M.A. Business Development SpecialistCorporate Relationships
“PJ” primarily helps 4Schoolers cultivate corporate relationships. He also runs marketing campaigns for the company. He holds a Masters in Economics and International Political Economy from Fordham University.
Casey Parker, B.S., B.F.A.
Casey Parker, B.S., B.F.A. English Grammar and Writing, Mathematics, Sciences, Public Speaking.
Casey is currently pursuing a Masters of Public Health at Brown. She has extensive experience in one-on-one education and advising, and she has taught both highschool and ECE classes. She plans to pursue an M.D.
Olga Katkova, Ph.D.
Olga Katkova, Ph.D. Mathematics
Olga holds a PhD. in Mathematics from Kharkiv University and has taught High School and College mathematics since 1989. She specializes in teaching students mathematics for school as well as extracurricular competitive mathematics and advanced subjects.
Nathan Howe, J.D., General Counsel
Nathan Howe, J.D., General CounselAdvising, College Applications, Writing, Mathematics, Logic.
Nathan has been teaching math and English for nine years. A graduate of UChicago and Georgetown Law, he specializes in advising and guiding students and families to build a competitive application package to elite U.S. universities. He also teaches advanced math, logic, and writing.
Mark Maysky, M.A.
Mark Maysky, M.A.English, History, French
Mark graduated from the Universite de Paris III: La Sorbonne Nouvelle. He holds a BS and MA in Mediation Culturelle with a focus on Art History. He is a certified TOEFL instructor and specialized in teaching French, History, and English.
Sol Pakes, M.Ed.
Sol Pakes, M.Ed.Advising, English, History
Sol has over 10 years of experience in K-12 education, working in public, private, and charter schools as an educator and administrator. He specializes in advising students and building tailored education plans for them. He also teaches English and History.
Scott Prosser, B.S.
Scott Prosser, B.S. Advising, Sciences, English
Scott holds a B.S. in Biology from UMass, Amherst, and he’s currently pursuing a Masters in Education. He specializes in teaching all sciences, including: Biology, AP Science, Chemistry, SSAT, ISEE, SAT subject tests.
Erielle Davidson, B.A.
Erielle Davidson, B.A. Advising, English
Erielle has been involved with 4Schoolers since 2015. She holds her undergraduate degree from Middlebury College and is currently pursuing a law degree from Georgetown University. She specializes in English, Writing, and Grammar. She also does secondary school and college advising.
Elena Aristarkhova, Ph.D.
Elena Aristarkhova, Ph.D. Chemistry
Elena holds a Ph.D. in Bioorganic Chemistry from the Russian Academy of Sciences in Moscow. She teaches Biology and Chemistry; and she prepares students for all standardized testing, including: SAT, ACT, AP courses, and the MCAT.
Alexander Aristarkhov, Ph.D.
Alexander Aristarkhov, Ph.D.Chemistry, Biology
Alexander holds a Ph.D. in Biology. He specializes in teaching Biology, Organic and Inorganic Chemistry, and SAT subject tests in science. As an expert in the field, he also serves as a professional mentor for students who want to pursue studies in biomedical engineering.
Alan Burnstein, M.Sc.
Alan Burnstein, M.Sc.Competitive Math, Computer Science
Alan holds a Master’s in Computer Science from Boston University. He specializes in AP courses, SAT/ACT, Calculus, Computer Science, and Physics. He also helps to lead our competitive mathematics program.
Wendy Golenbock, J.D.
Wendy Golenbock, J.D. Advising, English
Wendy has been teaching testing skills and advising students for 20 years. With 4Schoolers, she teaches standardized tests, and she helps place students into the right secondary schools and colleges.
Nadezhda Kosintseva
Nadezhda KosintsevaInternational Chess Grandmaster
Nadezhda is a two-time Olympic champion in Chess, and she was formerly the #3 player in the Women’s World Rankings.
Jordan Pecherer, M.B.A.,
Jordan Pecherer, M.B.A., English, Mathematics, Biology, Chemistry, Physics
Jordan brings over 10 years of experience in test preparation. He has considerable experience in educating for the ACT, SAT, and in Mathematics, English, Biology, Chemistry, and Physics.
Vasilka Sopova, Ph.D.
Vasilka Sopova, Ph.D.Physics, Mathematics
Vasilka holds a Ph.D. in Physics from Tufts University. She has been teaching physics for 25 years to college students. For 4Schoolers, she specializes in all levels of physics and mathematics.
Russel Thompson, B.S.E., M.Ed.
Russel Thompson, B.S.E., M.Ed.Mathematics, Computer Science, English
Russel holds a degree in Biomedical Engineering from Boston University and a Masters in Education. He teaches various coding languages as well as Mathematics and English for 4Schoolers.
Zlatko Vasilkoski, Ph.D.
Zlatko Vasilkoski, Ph.D. Physics, Data Analytics
Zlatko holds a Ph.D. in Physics from Tufts University. He has extensive teaching experience at Tufts, MIT, Suffolk, BU, and Bently. He specializes in teaching all levels of Physics and Computer Science.
Philippe Izedian
Philippe Izedian
Philippe has been with 4Schoolers since its inception in 2015. He helps organize and lead the intern program. Currently, he is one of 4Schooler’s success stories as an undergraduate at Duke University majoring in Environmental Science.
Divya Bachina
Divya BachinaAdvisor, ACT/SAT
Divya is a junior at RPI majoring in Computer Systems Engineering. She specializes in secondary school advising and placement at 4Schoolers, and she teaches math and English.
Connor MacIntosh
Connor MacIntoshMath Intern
Connor specializes in bringing his competitive mathematics competition experience to 4Schoolers. He has taught classes at BISB in AMC8.
Juliet Feldman
Juliet FeldmanSSAT Intern
Juliet specializes in SSAT tutoring at 4Schoolers.