Our Advisors
Meet the visionary experts shaping the future of TOEFL preparation
TOEFL expert and founder of TOEFL Resources. Over a decade teaching English in China, Korea, and Paraguay. Guides PrepEx in developing content standards and validating questions.
Founded TOEFL Resources, a comprehensive free hub for TOEFL learners worldwide. Former researcher and textbook writer at Hackers Education Group, one of Asia's largest TOEFL publishers.
Deep expertise in TOEFL scoring systems, ETS e-rater, and SpeechRater software. Guides PrepEx in developing robust content standards and validating AI-powered assessment questions.
Educational leader with 27+ years in international bilingual education across Asia. Former Executive Principal at BIBS Beijing and director roles across Singapore, Hong Kong, and Indonesia.
Served as Executive Principal at BIBS Beijing, Director of World Languages at Singapore American School, and Director of Chinese Studies and World Languages at Hong Kong International School.
Guides PrepEx in building culturally responsive solutions for the Asian learning context, helping us understand challenges multilingual learners face and develop personalized approaches that respect each learner's unique language journey.
Software engineer and research scientist with 8+ years specializing in adaptive algorithms and machine learning. Stanford alumnus with expertise in AI-driven systems.
Former researcher at Zoox (pioneering predictive AI for automotive safety) and student researcher at Stanford's Computational Vision and Geometry Lab. Graduate studies at Stanford University.
Provides guidance on platform development approaches, including adaptive algorithms, real-time data analysis, and personalized learning models to help PrepEx deliver intelligent diagnostics and dynamic practice experiences.
Clinton Wu
Strategic Consulting & Student Success Advisor
Strategic leader and educational consultant. Cornell graduate with 6 years at JLL. Founded college consulting firm guiding students to top universities worldwide.
Cornell graduate with 6 years as director at JLL. Founded college consulting and tutoring firm, helping hundreds of students secure admissions at Ivy League and elite universities through essay coaching, test prep, and application strategies.
Guides PrepEx in building user-centric solutions that enhance accessibility and student outcomes, drawing on expertise in personalized mentorship, adaptive problem-solving, and client-focused delivery.
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