Chatbot Terminal OS

Hello, I'm Marcus Liang.

Interact with the chatbot terminal below to learn more about my stack, or drag it around the screen!

visitor@portfolio ~ bash
Portfolio OS v2.0.0
Welcome to my Personal Site!
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Next.js 14.0 • Max 20x
~/users/marcus/portfolio
Recent activity
11 MayStarted a new Intern at PhillipCapital
...→ "experience" for more
System Controls
"resume" to trigger PDF download
"clear" to reset terminal history
↳ Or just ask the AI: "What did Marcus do at Shopee?"
Portfolio OS initialized. Ask the AI any question about my background.
visitor@portfolio:~$
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Experience

X-Star Technology Logo

Data Scientist Intern

X-Star Technology

Dec 2024 – Dec 2025
Machine LearningPythonSQLData VisualizationFinTechFinancial Services

Key Responsibilities

  • Engineered predictive repayment models using Random Forest and XGBoost to identify loaner's patterns and flag high-risk accounts, improving loan recovery efficiency.
  • Included in developing machine learning models to analyse financial and behavioural data for credit risk assessment, increasing automated approval rates by ~80%; collaborated with cross-functional teams in Beijing.
  • Architected interactive Power BI dashboards visualise repayment performance and track KPIs for dealer network, supporting decision-making.
  • Executed financial Vintage Analysis grouped by Months on Books (MOB) to evaluate long-term loan performance and forecast future outcomes, such as early settlements.

Technologies Used

Languages: Python, SQL, JavaScript

Tools: MySQL Server, VS Code, Excel, Lark

Shopee Logo

Cross-Border E-Commerce Intern

Shopee

Sep 2020 – Feb 2021
PythonSQLData VisualizationE-Commerce

Key Responsibilities

  • Automated key operational processes using Google Sheets and email notifications, reducing manual workload by up to 10 hours per week.
  • Developed and implemented SQL queries to extract and analyse critical sales data, empowering data-driven decisions on customer behaviour and sales trends.
  • Conducted in-depth analysis of monthly sales data to uncover trends and visualise insights through dynamic dashboards.

Technologies Used

Languages: Python, SQL, JavaScript

Tools: In-house query system, Google Sheets

Education

Aug 2023 - Dec 2026

National University of Singapore

B.Sc. Business Analytics (Honours)

Specialization: Machine Learning.
Relevant Coursework: BT4221 Advanced Analytics with Big Data Technologies, Machine Learning for Predictive Data Analytics.

Apr 2018 - May 2021

Ngee Ann Polytechnic

Diploma with Merit in Financial Informatics

Specialization: Financial Analytics.
Relevant Coursework: Deep Learning, Predictive Analytics, Applied Analytics.

Projects

Beijing House Market Analysis

Beijing House Market Analysis

Mar 2024 – Apr 2024

View Case Study

Analyzed Beijing housing data (2011–2017) to provide actionable business insights regarding market risks and investment viability.

Technologies & Stack

TableauPower BI

Skills Summary

Generative AI & Deep Learning

LangChain, LangGraph, FAISS (Vector Stores), PyTorch

Machine Learning

Supervised & Unsupervised Learning (Random Forest, XGBoost, Clustering), Scikit-learn, Model Validation (PSI)

Deployment & Model Serving

FastAPI, Flask, MLFlow, DataOps, DevOps, GitHub (Version Control)

Programming Languages & Runtimes

Python, SQL (MySQL), Java, C#, R, JavaScript, Node.js

Data Engineering & Cloud

Databricks, Apache Spark, AWS, Snowflake, ETL Pipelines

Data Analytics & BI

Pandas, NumPy, Power BI (DAX), Tableau, Matplotlib, Vintage Analysis

Automation & Tools

UiPath, Advanced Excel

Core Competencies

Analytical Problem-Solving, Continuous Learning, Adaptability, Communication, Teamwork, Time Management

Let's Connect.

I am always open to discussing data strategy, open-source projects, or the latest in cloud tech. Feel free to reach out via LinkedIn or email me 😀