Hi! I'm Andrés, a tutor in mathematics, computer science, artificial intelligence, and office tools with 10+ years of teaching experience and 5+ years tutoring online.
🥇 Gold Medalist – Ecuadorian Mathematical Olympiad and 🥉 Bronze – Ibero-American Olympiad. 🎓 MSc candidate in Computational Mathematics at Universitat Jaume I (Spain), ⚡ Electrical Engineer, and Certified Software Developer.
I've worked with students from 13+ countries (Spain, USA, UK, Germany, Italy, France, Argentina, Colombia, Peru, Uruguay, UAE, Australia, Ukraine) and from leading global universities such as ETH Zürich, UOC (Universitat Oberta de Catalunya) , and King's College London.
📚 Subjects I teach:
🔢 Mathematics — Calculus I–III, Multivariable Calculus, Linear Algebra, Differential Equations, Numerical Methods, Real Analysis, Pre-Calculus, Trigonometry, Algebra;
🏆 Math Olympiad Coaching — national and international preparation;
📊 Statistics & Probability — Descriptive and Inferential Statistics, Probability, Combinatorics, Data Mining (R, Excel, JMP, Python, SPSS);
💻 Computer Science & Programming — Python, Java, JavaScript, Bash, OOP, Data Structures and Algorithms, Databases (SQL), Theory of Computation, Automata, Graphs, Logic, Discrete Mathematics;
🤖 Artificial Intelligence & Machine Learning — I specialize in the mathematical foundations of AI (Linear Algebra, Probability, and Calculus applied to ML, core concepts like gradient descent and model evaluation);
📈 Financial Analysis — Financial Statement Analysis, quantitative methods;
⚙️ Applied Mathematics — Modeling, Optimization, Dynamical Systems (Mathematica, MATLAB, GeoGebra);
💼 Office Tools & Digital Productivity — Microsoft Office (advanced Excel, formulas, pivot tables, macros, Word, PowerPoint), Google Workspace (Sheets, Docs, Slides, Forms), productive use of ChatGPT and Claude for study and analysis, and Meta Business Suite for social media management and ads.
✅ Fully personalized lessons built around your syllabus, pace, and goals.
✅ Clear study plan for exams, assignments, or long-term learning.
✅ Real exercise practice using your own course materials. ✅ AI-friendly approach — I teach you to use AI as a learning tool, not a shortcut.
✅ Bilingual support — lessons in Spanish (native) or English (B2). In my free time I play guitar and work out.
⏰ Availability: 6:00 AM – 8:00 PM PST.
📩 Got an exam, assignment, or subject you're stuck on? Message me with the topic and your deadline — I respond within hours, and together we'll build a plan to get you across the finish line.
Availability
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Excelente Profesor! Me explico detalladamente, super profesional y paciente. Lo recomiendo 200%
Ilya Sinyugin
★★★★★
Andres is great at explaining very complex problems and his explanations are super easy to grasp
Gisela Fugon
★★★★★
Andres is a great Math teacher. He is patient and supportive, his methods are great. Clear and concise. Always lectures with the intent to help you understand the material.
Diana Rocio Carrnza
★★★★★
Andres es uno de los mejores tutores que tenido, tiene gran paciencia para enzenarte paso el tema que necesitas entender....... lo recomiendo 100%
Francesco
★★★★★
Profesor que posee una excelente capacidad de organización, se toma el trabajo de profesor con gran profesionalidad y pasión, características poco frecuentes hoy en día.
Jamie Molina
★★★★★
Andres is a genius! I am a doctoral student taking an intro statistics class. I have always struggled with math, and have a learning disability. Andres breaks my work down in a way that I can understand it. I 100% recommend taking his courses.
Nicolás
★★★★★
TODO MUY BIEN .EXPLICA BIEN, COMPRENDE AL ALUMNO.
Mario
★★★★★
Excelente
Narcisa
★★★★★
Muchas gracias! Me ayudó con una forma de hacer la integración por partes. Sabe bastante.
Mouhamed Gueye
★★★★★
sarah Ruiz
★★★★★
Emilio I M
★★★★★
Aditi
★★★★★
Noora
★★★★★
Seth Fio
★★★★★
Rubén Carabias Muñoz
★★★★★
Arielle Song
★★★★★
Jen
★★★★★
I teach
Computer Programming
Javascript
HTML
Python
Java
Matlab
Maths
Statistics
Basic Math
Linear Algebra
Calculus
Mathematical logic
Discrete Math
Languages I speak
SpanishNative
EnglishBilingual
Education
Engineering
Degree
Computational Mathematics (Msc.)
Master/Postgraduate
Certified Tech Developer
Certification
Other things I like
Frequently Asked Questions
Can I cancel a booking?
Yes, you can cancel booking up to 8 hours before the lesson starts, indicating the reason for the cancellation. We will study each case personally to carry out the refund.
Can I modify a booking?
Yes, something unexpected can always happen, so you can change the time or day of the lesson. You can do it from your personal area in "Scheduled lessons" through the option "Change date".
Where are the lessons held?
The class is done through classgap’s virtual classroom. Classgap was developed specifically for educational purposes, including many useful features such as: digital whiteboard, online text editor, webcam, screen sharing and many more. View virtual classroom
How do I pay for the lesson?
At the time you select a lesson or package of hours, you will make the payment through our virtual payment service. You have two options: - Debit / Credit - Paypal Once the payment is settled, we'll send you an e-mail with the booking confirmation.
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