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Thanh Tu NguyenTT

Thanh Tu Nguyen

Senior Machine Learning Engineer / Data Scientist

€750/day
Paris, FR
8-15 years

Average response time: 1 hour

About Thanh Tu

As a Freelance Senior Machine Learning Engineer at Carrefour, I’ve reduced ML project deployment timelines from 3 weeks to 1 day by building a Vertex AI-based MLOps package for end-to-end automation, driving a 2-3% revenue increase by developing a real-time deep learning solution using computer vision to detect fraud at self-checkout registers. Additionally, I’ve deployed edge computing solutions in stores to enable real-time insights and faster processing.

My technical stack includes working with state-of-the-art machine learning models in recommendation systems, bandit, and statistical models (winning rate probability or click-through rate), and putting them into deployment at scale with modern tech frameworks to serve our very large base of users.

Before I was a senior machine learning engineer at Voodoo and data lab team of BNP Paribas, the largest bank in France.
At Voodoo, a unicorn tech company that creates mobile games and apps with more than 6 billion downloads and over 300 million monthly active users, I built machine learning solutions for an Ad Network project that will generate 20% total revenue in 2 years. Simply put, the ad network act as a technical and commercial intermediary between advertisers, who are looking to place their ad in another app and publishers who has many apps running. We’ve built a bidding system that allows app developers to rapidly monetize their apps by leveraging machine learning and predictive algorithms.

At BNP Paribas, I was part of a deployment project for extracting relevant information from documents, which allows the automation of more than 500,000 documents per year in 3 different countries. I was also leading a team that was working on a speech recognition system that automated the manual process which consists of translating audio calls into text and making business insights from that. This system helps to reduce 50% of operational costs and to increase more than 100% response time for the company.
  • Vietnamese

    Native or bilingual

  • English

    Fluent

  • French

    Fluent

Remote only
Primarily works remotely

Experience

  • CARREFOUR
    Lead Machine Learning Engineer - Freelance
    E-COMMERCE
    February 2024 - Today (2 years and 4 months)
    Paris, France
    • Boosted the company’s revenue by a targeted 2% by developing and deploying a deep learning computer vision system that detects and tracks fraud at scale across Europe for more than 3,000 self-checkout registers.
    • Designed and benchmarked computer vision and predictive models for large-scale retail deployment, optimizing architectures for robustness, latency, and generalization under real-world distribution shifts.
    • Established structured evaluation and monitoring frameworks to ensure reproducibility, performance stability, and measurable operational impact across production systems.
    • Deployed a deep learning–based people-counting system for real-time queue monitoring across retail stores, enabling data-driven staffing decisions and improving customer experience.
    Vertex AI Computer Vision Deep Learning Python Cloud GCP
  • Jovyan AI
    CTO - Cofounder
    SOFTWARE PUBLISHING
    December 2024 - December 2025 (1 year)
    Paris, France
    AI-powered copilot automating data science and ML workflows (StationF and Telecom Paristech Incubator).
    • Designed and iterated on multi-step LLM reasoning pipelines, experimenting with prompt decomposition, retrieval strategies, and tool orchestration to improve determinism, reduce hallucinations, and enhance task success rates.
    • Architected and evaluated RAG-based systems, benchmarking embedding models and retrieval configurations to optimize relevance, latency, and robustness in production environments.
    LLM LLM Evaluation LLMOps Développement full-stack Cloud computing
  • DopikAI
    Lead Machine Learning Engineer
    January 2022 - December 2024 (2 years and 11 months)
    Paris, France
    A startup providing innovative AI solutions at scale for Vietnamese market.
    • Build an end-to-end process of an in-house Large Language Model (LLM) ViGPT for Vietnamese
    • Build a Facebook messenger chat-bot on responding 1000 user's requests per day about renting apartments
    • Provide on-premise deep learning solutions for extracting relevant information for Vietnamese documents
    • Tech stacks: Python, LLM, Huggingface, Transformers, Prompt Engineering, Distributed Training

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Education

  • Financial Engineer
    Paris Dauphine University
    2018

Skill set

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