Meng-chieh L.

Lecturer & AI Project Coach

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Frankfurt am Main, Taiwan, Province of China

Experience

Oct 2024 - Present
1 year 3 months
Taiwan, Province of China

Lecturer & AI Project Coach

RookieSavior

  • Delivered a 16-hour applied module on AI/LLM applications, bridging theoretical concepts with real-world data science workflows.
  • Edited and structured course materials to align theoretical concepts with real-world applications.
  • Coached professionals 1:1 on end-to-end AI projects, improving their ability to leverage ML tools to enhance business efficiency.
  • Developed structured course materials emphasizing practical, deployable AI/ML solutions.
Jan 2022 - Aug 2025
3 years 8 months
Sulzbach, Germany

Data Scientist

Cosnova GmbH

  • Led end-to-end development and production deployment of a product name cleaning, translation, and category prediction pipeline using LLMs (LangChain, RAG, ReAct Agents), reducing operational costs by 99% and increasing efficiency 200x.
  • Collaborated with stakeholders to perform prompt engineering, translating business requirements into precise, high-impact LLM workflows.
  • Developed and productionized trend insight extraction workflows with LLMs, delivering actionable insights to the executive board that influenced product strategy.
  • Built a warehouse sample search system based on Pantone color codes, accelerating product sample retrieval and improving operational efficiency.
  • Developed an 18-month lead-time sellout forecasting system using an ensemble of XGBoost, CatBoost, and LightGBM, achieving r² ≈ 0.8.
  • Partnered with data engineers and DevOps to deploy and monitor ML workflows in Kubernetes using MLflow, ensuring reliable production operations.
Oct 2019 - Dec 2021
2 years 3 months
Düsseldorf, Germany

Data Scientist

Check24 Fashion

  • Led the development and deployment of an English–German user review semantic classification system using a BERT-based model.
  • Led the development of an image-based product recommendation system leveraging Mask R-CNN for object detection and feature extraction.
Apr 2018 - Sep 2019
1 year 6 months
Darmstadt, Germany

Senior Data Scientist

AGT International (R&D)

  • Led the development of emergency vehicle detection with YOLO.
Oct 2017 - Mar 2018
6 months
Darmstadt, Germany

Data Scientist Intern

AGT International (R&D)

Skills

  • Large Language Models: Langchain, Rag, React Agents, Openai Api (Multimodal, Whisper, Tts, Websearch), Ollama.
  • Machine Learning & Forecasting: Xgboost, Lightgbm, Catboost, Pytorch Forecasting (Tft, N-beats, N-hits).
  • Natural Language Processing: Embedding Models, Bert-based Models, Semantic Classification, Prompt Engineering.
  • Computer Vision: Yolo, Mask R-cnn, Image-based Recommendation, Image Captioning.
  • Ml Ops & Deployment: Mlflow, Kubernetes, Model Monitoring, Scalable Production Pipelines.
  • Data Science Foundation: Pandas, Numpy, Scikit-learn, Scipy.

Languages

German
Native
English
Elementary

Education

Sep 2011 - Oct 2016

Karlsruhe Institute of Technology

Physics, cum laude · Physics · Karlsruhe, Germany

Aug 2009 - May 2011

Iowa State University

Physics, Hons and Dist · Physics · United States · GPA: 3.87

Sep 2003 - Jun 2007

National Taiwan Normal University

Physics · Physics · Taipei, Taiwan, Province of China · Overall/Subject GPA: 3.74/3.96

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