Sebastian Vallejos 魏提安 Programming, Math, English
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English
I am Sebastian, an engineering student at Taipei Tech with a deep passion for tutoring in Mathematics, Programming, and English. My academic background includes being a 2× National Math Olympiad Gold Medalist and a 2× National Programming Olympiad Bronze Medalist (Python), alongside holding CAE and TOEFL certifications for advanced English proficiency.

My teaching style is clear, practical, and adaptable. I believe in step-by-step explanations, guiding students from basic concepts to advanced problem-solving without skipping key foundations. I use real-world examples and past competition problems to strengthen critical thinking and help students connect theory to practice.

In programming (C, C++, Java, Python), I emphasize writing clean, structured code while also training students in algorithms and logical reasoning. In math, I focus on both problem-solving speed and conceptual clarity. For English, I offer support in academic writing, test preparation, and conversational fluency.

What makes me a great tutor is not just my achievements, but my ability to adapt lessons to each student’s level and pace. I aim to build both skill and confidence, so students not only perform better in exams but also gain long-term learning ability.

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繁體中文
我是 Sebastian，就讀於台北科技大學工程系，熱衷於教授 數學、程式設計與英文。我曾獲得 全國數學奧林匹亞金牌 ×2，以及 全國程式設計奧林匹亞銅牌 ×2（Python），同時持有 CAE 與 TOEFL 英語證照，具備專業的英語能力。

我的教學風格注重 清晰、實用且可調整。我相信循序漸進的講解方式，幫助學生從基礎到進階完整理解，不會錯過任何重要觀念。我也會透過 真實案例與競賽題目，培養學生的批判思考能力，並將理論與實際應用結合。

在程式設計（C/C++/Java/Python）方面，我強調撰寫結構化程式碼，並訓練演算法與邏輯思維。在數學方面，我注重解題速度與概念清晰度。英文部分則協助學術寫作、考試準備與口語流利度。

我最大的特色是能 依照學生的程度與學習速度調整課程，讓學生不僅在考試中表現更佳，也能建立長期的學習能力與自信心。

Subjects

  • English Beginner-Expert

  • Programming Beginner-Expert

  • Math & Reasoning Grade 1-Bachelors/Undergraduate

Experience

  • Mobile Developer (Feb, 2023–Jul, 2023) at ROSHKA Paraguay
    Worked on the iOS ‘Returns & Payment Request Flow’ Project for Banco Solar S.A.E., contributing to the development of a scalable and maintainable mobile solution. -Developed/Optimized Swift-based iOS application features -> Integration of API responses. -Assisted in API response handling and data structure modeling for the backend. -Daily meetings with project leads to collaborate on system design improvements, UI/UX and functionality enhancements. Prior to joining this project, I participated in the ROSHKA Mobile Bootcamp, where I contributed to the development of Paraguay’s first National Blood Donation App using Kotlin, and worked on a prototype for "Paraguay Soccer Fantasy" using Swift.
  • Mentor of Math & Programming for other younger students (Mar, 2022–Nov, 2022) at Mentor during Highschool, Paraguay
    Mentored younger students in Mathematics and Programming through regular study sessions and problem-solving workshops.
    Guided students preparing for the National Math Olympiad, sharing strategies for advanced problem-solving and competition readiness.
    Supported peers in Python programming and helped them strengthen logical thinking for the National Programming Olympiad.
    Focused on building confidence, step-by-step explanations, and adapting teaching to each student’s level.

Education

  • Computer Science & Information Engineering (Aug, 2024–now) from National Taipei University of Technology, Taiwan–scored Rank: 4th
  • CAE - Cambridge Certificate in Advanced English (Nov, 2022–now) from Cambridge University United Kindom–scored 195

Fee details

    NT$600–800/hour (US$19.09–25.45/hour)

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