Nathan Ko

Intro

Hi, I’m Nathan. I’ve always been drawn to crunching numbers, whether that meant problem-solving, spotting patterns, or finding better ways to approach a challenge. That curiosity first turned into action in Grade 12, when I co-founded a tutoring business with a partner as a way to share my love for math with younger students. Over nine months, we grew it to 17 students, and I found myself enjoying not just the teaching, but the process of building something from the ground up.

Around the same time, that interest in building began to shift toward programming. I started exploring how software could be used to create useful tools and automate tedious tasks, which eventually led to a summer internship at CYC Motor, an engineering startup. There, I helped build and train a retrieval-augmented customer service chatbot for their company, giving me my first real exposure to applying technical skills in a real-world setting. I’m now a 1B Honours Mathematics student, strengthening my computer science fundamentals and continuing to build projects that sit at the intersection of finance, data, and software.

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Technical Experiences and Projects

Technology Analyst

Government of Ontario · Toronto, ON

May 2026 - Aug 2026
  • Designed and implemented AI-driven automation workflows and a reusable prompt library to streamline software testing processes, improving efficiency and consistency.
  • Analyzed business requirements and executed 100+ functional and regression tests, identifying implementation issues and supporting solution delivery in an Agile environment.
  • Bridged software and business teams to clarify requirements, resolve implementation issues, and deliver reliable enterprise software.

Software Engineer

CYC Motor Ltd · Hong Kong

Jul 2025 – Aug 2025
  • Built and deployed an AI-powered customer support chatbot using a retrieval-augmented generation (RAG) pipeline over internal product manuals, FAQs, and support documentation.
  • Integrated the chatbot into the company website, serving 2,000+ monthly user interactions, deflecting a significant portion of human support tickets.
  • Engineered the chatbot's retrieval pipeline and prompt architecture to reduce hallucinations while delivering context-aware answers across the company's product catalog.

Co-Founder / Lead Software Engineer

Aim High Tutoring · West Vancouver, BC

Sept 2024 - June 2025
View Site
  • Founded and scaled a peer-to-peer math tutoring business from 0 to 18 clients in 9 months, generating $15K+ CAD in revenue with zero external funding.
  • Developed a client acquisition platform using Javascript/PostgreSQL (Supabase) for lead capture and testimonial management, improving conversion rates by 150%.
  • Managed operations for a team of 4 tutors, overseeing hiring, scheduling, client onboarding, and finances.

Tech Layoff Stock Impact Predictor

Python, Pandas, Streamlit, scikit-learn, XGBoost

View Project
  • Built an end-to-end ML pipeline predicting stock drawdowns from tech layoff events using 4,000+ records merged with Yahoo Finance data via Pandas.
  • Deployed an interactive Streamlit dashboard visualizing model predictions, SHAP feature importance, and performance metrics (AUC-ROC, precision/recall).

Varsity Squash Training Scheduler

Next.js · React · Supabase · OpenAI API

  • Collaborated in a team to build a full-stack scheduling platform, matching varsity squash players into training sessions based on availability and skill ratings.
  • Designed and implemented the PostgreSQL data model and AI-driven scheduling pipeline using Supabase and the OpenAI API to generate and manage optimized training sessions.

Skills

Languages

Python, SQL, TypeScript, C, HTML/CSS

Frameworks & Tools

Pandas, NumPy, scikit-learn, PostgreSQL, React, Git, Azure DevOps

Spoken Languages

English, Cantonese, Mandarin