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Qintao ZengQZ

Qintao Zeng

Data Scientist

€256/day
Eindhoven, NL
0-2 years

Average response time: 1 hour

About Qintao

Hi there!

My main focus is building smart tools with AI, especially using Large Language Models (LLMs) and Retrieval-Augmented Generation (RAG). I can help turn your internal documents into a smart assistant for your team, so they can find the answers they need instantly. On a recent project, I had a great time fine-tuning the models to boost retrieval accuracy by 35%.

But I'm not just about the AI—I enjoy building the entire application from start to finish. I can create a great user experience using modern tools like Next.js, React, and TypeScript. I also have a knack for automating those repetitive daily tasks. I've previously built Python scripts that saved a team around 15 hours of manual work every single week.

As a Data Science & AI Master's student right here in Eindhoven, I'm always excited about new challenges. If you have an idea, I'd love to chat about how we can bring it to life!
  • English

    Native or bilingual

  • Hungarian

    Native or bilingual

  • Chinese

    Native or bilingual

Can work on-site
Eindhoven (up to 50km)

Experience

  • Oriana
    Software Engineer
    DIGITAL AND IT
    July 2025 - August 2025 (1 month)
    Budapest, Hungary
    • Engineered a Retrieval-Augmented Generation application to automate code generation based on natural language prompts.
    • Boosted retrieval accuracy and contextual relevance of generated code by around 35% through targeted fine-tuning of embedding and retriever models.
    • Utilized the company's internal markdown documentation as the core knowledge base, enabling the model to generate context-aware and structurally accurate code.
    • Directly contributed to a key strategic initiative aimed at accelerating development cycles and enhancing platform capabilities.
    Machine learning Large Language Models Python SQL
  • SAIC Motor Central and Eastern Europe Kft.
    Python Admin Intern
    June 2024 - September 2024 (3 months)
    Budapest, Hungary
    • Automated 8 logistics and sales processes using Python, reducing manual data entry by approximately 15 hours per week.
    • Prepared regular analytical reports to support strategic decision-making.
    • Visited multiple car dealerships in Hungary to strengthen trust between dealers and the brand.

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Education

  • MSc.
    Eindhoven University of Technology
    2025
    MSc.
  • BSc.
    University of Birmingham
    2025
    BSc.

Skill set

Categories