I'm a senior AI & Machine Learning Engineer with over 10 years of experience building intelligent, scalable systems across multiple industries. I specialize in Artificial Intelligence, Machine Learning, Data Science, and Full-Stack Development, allowing me to take projects from raw data all the way to production-ready applications. My core strengths include designing and deploying end-to-end ML pipelines, developing deep learning models, working with large-scale datasets, and integrating AI into real-world products. I have strong expertise in Python, TensorFlow, PyTorch, data engineering, and modern web technologies, enabling me to bridge the gap between research and production. I’ve worked across sectors such as real estate analytics, fintech, e-commerce, and SaaS platforms, delivering solutions like predictive modeling, recommendation systems, NLP applications, and data-driven dashboards. What differentiates me from other developers is my ability to combine deep technical knowledge with business understanding, ensuring that every solution delivers measurable impact. I focus on writing clean, scalable code and building systems that are not only accurate but also maintainable and production-ready. Employment and project experience AI / Machine Learning Developer - ThinkCol Limited. January 2016 - March 2019 AI Engineer - OneSky. March 2019 - March 2022 Senior Data Scientist (Remote) - Cohere. April 2022 - December 2025…

MatthewLiu

I'm a senior AI & Machine Learning Engineer with over 10 years of experience building intelligent, scalable systems across multiple industries. I specialize in Artificial Intelligence, Machine Learning, Data Science, and Full-Stack Development, allowing me to take projects from raw data all the way to production-ready applications. My core strengths include designing and deploying end-to-end ML pipelines, developing deep learning models, working with large-scale datasets, and integrating AI into real-world products. I have strong expertise in Python, TensorFlow, PyTorch, data engineering, and modern web technologies, enabling me to bridge the gap between research and production. I’ve worked across sectors such as real estate analytics, fintech, e-commerce, and SaaS platforms, delivering solutions like predictive modeling, recommendation systems, NLP applications, and data-driven dashboards. What differentiates me from other developers is my ability to combine deep technical knowledge with business understanding, ensuring that every solution delivers measurable impact. I focus on writing clean, scalable code and building systems that are not only accurate but also maintainable and production-ready. Employment and project experience AI / Machine Learning Developer - ThinkCol Limited. January 2016 - March 2019 AI Engineer - OneSky. March 2019 - March 2022 Senior Data Scientist (Remote) - Cohere. April 2022 - December 2025…

Available to hire

I’m a senior AI & Machine Learning Engineer with over 10 years of experience building intelligent, scalable systems across multiple industries. I specialize in Artificial Intelligence, Machine Learning, Data Science, and Full-Stack Development, allowing me to take projects from raw data all the way to production-ready applications.

My core strengths include designing and deploying end-to-end ML pipelines, developing deep learning models, working with large-scale datasets, and integrating AI into real-world products. I have strong expertise in Python, TensorFlow, PyTorch, data engineering, and modern web technologies, enabling me to bridge the gap between research and production.

I’ve worked across sectors such as real estate analytics, fintech, e-commerce, and SaaS platforms, delivering solutions like predictive modeling, recommendation systems, NLP applications, and data-driven dashboards. What differentiates me from other developers is my ability to combine deep technical knowledge with business understanding, ensuring that every solution delivers measurable impact.

I focus on writing clean, scalable code and building systems that are not only accurate but also maintainable and production-ready.

Employment and project experience

AI / Machine Learning Developer - ThinkCol Limited.
January 2016 - March 2019

AI Engineer - OneSky.
March 2019 - March 2022

Senior Data Scientist (Remote) - Cohere.
April 2022 - December 2025

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Language

English
Fluent

Work Experience

AI / Machine Learning Developer at ThinkCol Limited
January 1, 2016 - March 13, 2019
This was precious period for me. I got deep understanding and experience of AI and ML.
AI Engineer at OneSky
March 21, 2019 - April 6, 2022
I integrated AI into real-world products. I built recommendation systems, AI powered e-commerce systems, and Market analyze systems. I combined deep technical knowledge with business understanding.
Senior Data Scientist (Remote) at Cohere
April 13, 2022 - December 9, 2025
I worked on developing and deploying large-scale NLP and LLM-powered systems for enterprise use cases, focusing on performance, scalability, and real-world applicability.

Education

Bachelor degree of Computer Science at City University of Hong Kong
April 1, 2012 - March 31, 2016
I majored in Computer Science, and I was very passionate to learn and develop AI-powered software products.

Qualifications

Add your qualifications or awards here.

Industry Experience

Computers & Electronics, Software & Internet
    paper Large-Scale Data Processing & Feature Engineering Pipeline

    Engineered a robust data pipeline for handling large-scale datasets.

    1. Processed TB-scale datasets using Pandas, PySpark, and Dask
    2. Built automated ETL pipelines with validation and anomaly detection
    3. Implemented data quality checks and schema validation
    4. Optimized memory usage and processing time by >40%
    paper NLP-Based Semantic Search & Recommendation Engine

    Built a semantic search system using embeddings and transformer models.

    1. Implemented sentence embeddings using BERT / SentenceTransformers
    2. Designed vector search pipeline using FAISS / Pinecone
    3. Developed Retrieval-Augmented Generation (RAG) pipelines
    4. Optimized search latency with approximate nearest neighbor (ANN) indexing
    5. Deployed scalable API for real-time query processing
    paper End-to-End House Price Prediction System (ML + Full-Stack)

    Developed a production-ready machine learning system for real estate price prediction using structured and geospatial data.

    1. Built advanced regression models (XGBoost, LightGBM, Deep Neural Networks) to predict housing prices with high accuracy
    2. Performed extensive feature engineering including location encoding, geospatial clustering, and time-series trend extraction
    3. Designed scalable data pipelines for preprocessing large datasets (millions of records)
    4. Deployed models using FastAPI and Docker with real-time inference APIs
    5. Integrated frontend dashboard for visualization using React