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100% Satisfaction Guarantee

100% Satisfaction Guarantee

Try the first lesson and if you’re not satisfied we'll refund any unused lessons.
100% Satisfaction Guarantee

100% Satisfaction Guarantee

Try the first lesson and if you’re not satisfied we'll refund any unused lessons.

About Bill L.

I have always been a self-studier in my entire life. Being able to learn with just books and your brain is a crucial skill to have! However, I know not everyone (and sometimes even myself) have the discipline and motivation to keep going during hard times. This is where a tutor would come in handy.

I enjoy tutoring (doing it ever since I was in high school for my classmates) and helping other overcome problems that I have encountered myself because it enhances my own understanding and makes me happy that my self-studying is helping others. Sometimes, my students even bring up alternative ways of thinking that I have never thought of before!

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  • Speaks English, Mandarin Chinese
  • Teaches students 5 to 80
  • Masters in Computer Science (Machine learning/Artificial Intelligence) from Georgia Tech

Reviews (26)

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Louie (Jasmine) Dec 26, 2019
Python · Online

Rachel S. Dec 7, 2019
Computer Programming · Online

David Nov 23, 2019
Python · Online

Amazing, very efficient. Very recommended.

Britney N. Aug 12, 2019
Python · Online

Good communication and best explanation

Nathan F. Jan 26, 2019
Python · Online

Good explanations and efficient with time!

Jasmine Nov 21, 2018
Classical Piano · In studio

Had played piano when I was young, and missed playing it. Bill is an excellent motivator and helped me enjoy practicing again and playing new pieces!

LT Oct 29, 2018
Java · Online

Bill is very patient and breaks the material down in a simple way to understand. He's helpful and motivating. With his help, I was better able to understand my assignments and class material. Before his help, I was very confused about java concepts. I would definitely recommend him as a programming tutor!

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Lynette Oct 18, 2018
Piano · In studio

Wanted to just learn to play my favorite song on the piano, but Bill ended up teaching me to play piano.

JANET Sep 22, 2018
Computer Programming · Online

Best instructor ever! Was very patience and thorough with me.

Erika Sep 14, 2018
GMAT · In studio

I tend to have a busy schedule with my work, but Bill is accommodating and punctual. In our lessons, we go over topics I struggle with and he thinks of variations of the problem that may appear on the exam to guarantee I fully mastered the concepts. I rather be overprepared than failing and studying for the GMAT all over again.

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Leah Aug 19, 2018
GRE · In studio

Bill is superb at asking leading questions to discover my own weaknesses and mistakes so we can fix them together and get to the correct answer.
Having someone to bounce various approaches to a problem really helped me understand how to solve the exercises as opposed to just memorizing the solutions

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Cameron Jun 16, 2018
Calculus · Online

Pretty good has very good patience

Roy Jun 16, 2018
Python · In studio

Bill is great so far, he caters the lesson to exactly what you want to learn!

Andy May 19, 2018
Computer Programming · Online

Excellent first lesson, Thanks Bill

Patrick Dec 21, 2017
Algebra 2 · In studio

Bill's tutoring made a big difference in my child's math grades. He simplifies math concepts and reinforces good study techniques

Meg Dec 8, 2017
Piano · In home

I thought piano was going to be impossible to learn for me because I have bad hand-eye coordination. Somehow Bill is able to motivate me to work with me despite my slowness until I am able to start advancing on my own.

Margaret Nov 25, 2017
Violin · In home

Used to play a little violin when I was young and want to get back into it. Although I forgot almost everything, Bill made the transition really smooth and easy to understand. We also created a daily practice routine together and discussed how to practice without becoming frustrated.

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Sophie Nov 23, 2017
Violin · In home

Wasn't able to progress by myself after trying to learn through Youtube, I decided to look for a teacher to guide me. I used to have a teacher when I was young and they were excellent performers, but not excellent teachers. Bill is both: He is fully invested in making lessons understandable and fun, without sacrificing rigor and technique.

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Olivia Nov 11, 2017
ACT · In home

My son had to take the ACT for grad school and did not have enough time to prepare thoroughly. Bill was able to clarify all the majority of my son's questions and drilled on particular questions that gave him trouble. The preparation genuinely helped as my son received a 33 overall on the ACT.

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win Oct 25, 2017
AP Calculus · Online

Daniel, do you know how to solve this problem?

f(x) =(3x-2)/(2x+1), x=3 linear approximation f(2.90)

Alex Oct 24, 2017
Piano · In studio

In the last few months, I have progressed considerably. Bill helped me be more confident on my playing, and to rely on sheet music rather than memorization, which was what I used to do. This in turn allowed me to learn many pieces in parallel, and be exposed different types of pieces. He also helped me learn an anime song that I wanted to learn despite it being slightly out of reach for my level.

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Ramsey A. Oct 7, 2017
Java · Online

very helpful

Hannah Oct 2, 2017
GRE · Online

Preparing for the GRE test was a little stressful. I did not know what topics I should focus on in the little time I had, but Bill was able to break all the content into manageable sections. We managed to cover almost all the topics and my test went really well!

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Erin Sep 30, 2017
Classical Piano · In home

Learning piano has been an amazing experience because Bill tries his best to pass his musical passion down to me. He doesn't take the boring route of learning piece by piece as many other teachers often do, but he focused strongly on musicality, style, and interpretation.

This makes practice and learning more engaging instead of becoming a mindless chore.

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Daniel Sep 9, 2017
C Programming · In studio

Helped me get through my algorithms course, thanks

Stella Aug 10, 2017
AP Calculus · In studio

Bill is superb at making difficult concepts easy! One particular problem I always had trouble understanding is calculating volume of revolutions using the cylindrical method. He drew a diagram explaining intuitively why the formula worked and it just clicked.

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Software engineer
Jun 2016 - Present

High-frequency trading firm

● Improve the low-latency trading platform for handling market data and order entry for various exchanges ● Assist traders in modeling and increasing their profitability and implementing new features upon their requests

R&D Intern
Sep 2015 - Dec 2015

Allure Security Technology, Inc.

● Applied anomaly detection techniques on network data to find possible intrusions and malicious traffic.

Robotics Perception intern
May 2015 - Aug 2015

Autonomous Solutions, Inc.

● Prototyped real-time machine learning/computer vision algorithms allowing autonomous mining vehicles to detect and classify obstacles. o Developed road detection algorithms on rough surfaces based on 3D LiDAR point clouds. o Implemented pattern recognition methods to classify obstacles based on image features (VFH).

Bilingual math/science tutor
Sep 2009 - Mar 2012

Chinese-American Planning Council

● Tutored calculus, biology, computer science, and chemistry for newly immigrated high school students. ● Used both English and Mandarin Chinese to ensure that students fully understand the topics.


Masters in Computer Science (Machine learning/Artificial Intelligence)
Jun 2017 - Present

Georgia Tech

Specialized High School
Aug 2008 - Jun 2012

Stuyvesant High School



Fluent / Native Proficiency

Mandarin Chinese

Fluent / Native Proficiency

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