Lishan Huang - Data Scientist

Singapore

Experience

May 2025 - Dec 2025

8 months

Singapore

Data Scientist

Procter & Gamble

AI application development: Built a RAG-based questionnaire generation QA system, integrating dynamic prompt templates and GPT-5 for user pain point detection and generate customized questions.
Developed Gradio survey interface, reducing product research cycle time by 50%.
Model training & evaluation: Implemented and visualized text analysis workflow using PostgreSQL, LangChain and Streamlit, including topic modeling, keyword extraction, and new feature detection, achieving an accuracy of 90%.
Performance optimization: Applied batch and parallel processing to enhance model efficiency by 95%.
Agile development: Used Azure Cloud, Linux, and Git for code development, version control, and on-time project delivery.

Jan 2025 - May 2025

5 months

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Cold Start Recommendation System – Instacart Dataset

Developed a user–item interaction matrix with UserCF/ItemCF similarity-based recommendation.
Fine-tuned Sentence-BERT + FAISS to build the product embedding database, improving Top-5 accuracy by 47% in cold-start scenarios.
Integrated LightFM hybrid recommendation model, achieving 95% Top-5 accuracy.
Managed tasks and code reviews with GitHub + Jira under agile methodology.

Jul 2023 - Jun 2024

1 year

Shenzhen, China

Data Mining Analyst

China Telecom Corp., Ltd.

Data engineering: Processed PB-scale data with Hadoop/Hive; built and maintained 200+ business reports and KPI dashboards, automating data management for telecom operations.
Model deployment: Designed customer profiling and precision marketing models, improving conversion rate by 7.7% in the first month of rollout.
Visualization: Developed 5+ dashboards and reports with FineBI/FineReport to improve business intelligence and decision-making.
Certification: China Telecom Cloud Certified Developer (Level 1).

Mar 2023 - May 2023

3 months

Guangzhou, China

Algorithm Engineer

Guangzhou Xinxiangsui Technology Co., Ltd.

Feature engineering: Implemented R-wave detection and extracted ECG features; applied ridge regression for feature selection, reducing dimensions from 42 to 30 key features.
Machine learning: Trained and compared models (SVM, Ridge Regression, Random Forest), building reusable function libraries; improved atrial fibrillation detection accuracy and F1-score from 40% to 94%.

May 2022 - May 2022

1 month

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Meritorious Winner of Interdisciplinary Contest in modelling (International)

Led a team to design a dynamic asset allocation strategy for gold & Bitcoin.
Applied ARIMA forecasting + risk evaluation, projecting 5-year return on investment (ROI) of 1.7M% and actual ROI was 314x higher than baseline forecast.

Apr 2020 - May 2020

2 months

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C++ Maze Game (Independent Project)

Developed an interactive console game with object-oriented programming.
Implemented recursive division algorithm for maze generation and right-hand rule for maze solving.
Completed debugging and modular testing in VS2015.

Skills

Programming Skills: Python, C++, Hive, Mysql, R, Matlab
Development Tools: Git/github, Linux, Azure Cloud, Jira
Frameworks & Platforms: Pytorch, Langchain, Faiss, Streamlit, Postgre, Hadoop, Finebi/finereport
Algorithms & Models: Machine Learning, Deep Learning, Natural Language Processing, Large Language Model Applications, Recommender Systems, Time Series Forecasting
Soft Skills: Communication, Problem Solving And Project Management

Languages

Chinese

Native

English

Advanced

Education

Aug 2024 - Jan 2026

National University of Singapore

Master of Science in Statistics · Statistics · Singapore · GPA: 4.4/5.0

Sep 2019 - Jun 2023

South China Normal University

Bachelor of Science in Computational Mathematics · Computational Mathematics · Guangzhou, China · GPA: 3.98/5.0, top 5%

Certifications & licenses

China Telecom Cloud Certified Developer (Level 1)

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Rehaan Shaikh

Experience

Data Scientist

Procter & Gamble

Cold Start Recommendation System – Instacart Dataset

Data Mining Analyst

China Telecom Corp., Ltd.

Algorithm Engineer

Guangzhou Xinxiangsui Technology Co., Ltd.

Meritorious Winner of Interdisciplinary Contest in modelling (International)

C++ Maze Game (Independent Project)

Skills

Languages

Education

National University of Singapore

Master of Science in Statistics · Statistics · Singapore · GPA: 4.4/5.0

South China Normal University

Bachelor of Science in Computational Mathematics · Computational Mathematics · Guangzhou, China · GPA: 3.98/5.0, top 5%

Certifications & licenses

China Telecom Cloud Certified Developer (Level 1)

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