Tutoring Machines | Instructors

Instructors

Explore detailed resources on the Digital SAT, ACT, and college admissions, providing essential information to help you through the application process. You’re not alone—support and tools are available every step of the way.

KIMANI WILLIAMS, PH.D

Leading by
Example

KIMANI WILLIAMS, PH.D

Leading by Example

The founder of Tutoring Machines has accumulated a wealth of knowledge through his extensive teaching experiences. He extracts from this wealth of experience to craft a meticulous and all-encompassing framework such that other instructors can follow his lead and become exceptional test prep tutors as well.

Here at Tutoring Machines, we value when an instructor shows academic prowess, unwavering passion for the subject, and the flexibility to engage students from various backgrounds. We aspire for greatness. Our students’ futures are figuratively in our hands, and we do our utmost best to direct that path to success.

Motivated

A prerequisite to tutoring at Tutoring Machines is the unyielding motivation to connect with our students. We strive to maintain a constant, postive presence for our students from the beginning to the end of the test prep process in order to bring out their best.

Well-Coached

Tutoring Machines has elite standards for delivering first-class service. This is the reason that we place a strong emphasis on coaching tutors to become exceptional at their craft. All our tutors are subjected to an intense, comprehensive 40-hour training program.

Knowledgeable

Our tutors are proficient in all subjects that are covered on the test. Our tutors are masters of understanding the content, intricacies, and nuances of these tests. In our experience, the more knowledge displayed by tutors, the easier it is to inspire the students.

Kimani Williams

Founder, Lead Digital SAT & ACT Instructor

Ph.D. Electrical and computer Engineering, University of California, Santa Barbara

Kimani is the founder of Tutoring Machines and a veteran test-prep educator with over two decades of experience. A Ph.D. graduate in Electrical and Computer Engineering, he is known for translating complex material into clear, effective strategies and for building curricula that drive meaningful score improvement and long-term student success.

James Padden-Rubin

Digital SAT Instructor

UCLA Graduate (Summa Cum Laude)

James is a Summa Cum Laude UCLA graduate who brings academic rigor and clear, practical instruction to the Digital SAT. Trained directly under Dr. Kimani Williams, he teaches using Tutoring Machines’ proven methods and connects naturally with students, helping them build confidence and consistency under test-day pressure.

Elia Karel Chibvuri

Digital SAT Instructor

UCLA Graduate (Summa Cum Laude)

Elia Karel Chibvuri is a top-percentile SAT scorer and Digital SAT instructor with a strong background in mathematics and analytical reasoning. He delivers clear, structured instruction designed to strengthen fundamentals, develop transferable strategies, and build confidence under exam pressure. Trained by Dr. Kimani Williams, he upholds Tutoring Machines’ standards for precision and excellence.

Instructors

Leading by Example

Leading by Example

Motivated

Well-Coached

Knowledgeable

Kimani Williams

Founder, Lead Digital SAT & ACT Instructor

Ph.D. Electrical and computer Engineering, University of California, Santa Barbara

James Padden-Rubin

Digital SAT Instructor

UCLA Graduate (Summa Cum Laude)

Elia Karel Chibvuri

Digital SAT Instructor

UCLA Graduate (Summa Cum Laude)

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Leading by
Example