Hire the top private math olympiad, AMC, and enrichment tutor.

About me

Hi, nice to meet you! My name is Ekaterina (Eka) Machavariani.

I've been passionate about solving math problems since I was a young kid. While in high school in Georgia, I participated in various math Olympiads and brought a Gold Medal from the International Mathematics Project Competition in 2005.

My commitment to the world of mathematics led me to the American University in Bulgaria, where I obtained my bachelor's degree in Mathematics/Economics. During my time at the university, I assumed leadership roles as the Chess Club President and the Representative of the Math Department within the student government.

However, my thirst for knowledge continued beyond the undergraduate level. I pursued a Master's Degree in Math at New York University, refining my mathematical skills to the highest standards. Today, I proudly serve as a part-time math instructor at the renowned institution for contest preparation, the Art of Problem Solving (AoPS), where I have the privilege of sharing my passion for mathematics with eager students.

Beyond the classroom, I've dedicated myself to privately preparing students for the challenges of Math Olympiads and providing Enrichment Math tutoring. To me, mathematics is more than just a subject; it's a lifelong passion that I'm committed to nurturing in others through diligent teaching and mentorship.

My journey

IMPC 2005


– Received Gold Medal after presenting the project "Diophantine Geometrical Figures."
- Received 2nd place among 50 Mathematics projects from 20 countries.



Bachelor of Science in Mathematics and Economics at American University in Bulgaria.
- Teaching Assistant.
- Student representative of the Mathematics Department.
- Chess Club President.

Credit Suisse


-  Intern.



- Master's degree at Courant Institute of Mathematical Sciences of New York University.
- Grader and teaching assistant at the Mathematics Department.

Private Tutor


- Private Enrichment Math Tutor, USA.



- Instructor at Art of Problem Solving (AoPS), USA.

What parents say:

Ekaterina is thoughtfully guiding my son through his first AMC8 preparation. She assesses where knowledge is needed and where problem solving strategy is needed. My son is very much appreciating her tutoring as he is enjoying his growth.


My son just had his first AMC session with Ms. Ekaterina. She is very knowledgeable and able to explain math problems clearly. She is patient and approachable. We love her and will recommend her to anyone who is interested in AMC.


Ekaterina is an excellent tutor. I am impressed at how patient she is, and one can see that homeschooling her child has influenced her style and made her more patient and caring than your average tutor. In addition, she has hands-on experience with Olympiads, as she has participated in many. I would recommend her to anyone wanting to improve their kids' AMC 8 results.


Ekaterina is great. She is very responsive, and my daughter loves her way of teaching. Eka gives my daughter the right amount of homework and she is very good at explaining the questions.


We started working with Ekaterina in early May. Since then, I've seen big improvements in my daughter's interests in math and her approach to problem-solve. Ekaterina continues to pique my daughter's curiosity and grow her ability to ask questions and analyze problems with positivity and clarity. To me, this is more important than test scores. I'd highly recommend her as a math tutor. From the 9-year-old - "Ekaterina is a great math tutor. She explains strategies and problems very clearly. She also motivates me. She encourages me to go beyond what I am comfortable with every time and improve."


Trusted by students and parents.

Subjects & specialties

Elementary Math

Middle School Math

Highschool Math

Olympiad Preparation

Teacher Training

If you're a student looking to excel in math and unleash your full potential, I'm here to help you on your journey.

With my years of experience providing Enrichment Math tutoring, I would love to help you conquer your mathematical challenges and discover the joy of problem-solving.

Working with me, you can expect:
     Expert Guidance: I bring a wealth of knowledge and experience to the table, ensuring you receive top-tier instruction.
      Personalized Learning: My tutoring sessions are tailored to your specific strengths, weaknesses, and goals, guaranteeing maximum progress.
     Real-World Application: I focus on connecting mathematical concepts to real-world scenarios, making learning engaging and practical.
     Proven Results: My track record of helping students achieve success in Math speaks for itself.

If you're ready to embark on a math journey that will enhance your skills and broaden your horizons, I invite you to get in touch. Together, we'll explore the captivating world of mathematics and pave the way for your future success.