• Justin Koay

    Justin Koay - Data Scientist & Data Engineer. Dabbles in some data and some web stuff.

    • projects

      Justin Koay's recent open-source projects including OpenPriceCatcher, BNM Events Calendar, and OpenPAKW.

      • OpenPriceCatcher

        OpenPriceCatcher: KPDN's PriceCatcher on an accessible webapp with improved visuals. Search items, track historical trends, and find lowest prices.

        View Source To App

      • BNM Events Calendar

        BNM Events Calendar: Bank Negara Malaysia's Event calendar in easy to integrate formats (.ics & .json).

        View Source To Site

      • OpenPAKW

        OpenPAKW: A transparent version of MyPAKW, helping track and view PAKW data.

        View Source To App

    • experience

      Justin Koay's professional experience in Data Science and Data Engineering at Bank Negara Malaysia, Govtech Nucleus, and AirAsia.

      • AirAsia (2022)

        AirAsia (2022) - Data Scientist I. Developed and maintained models, data pipelines, and dashboards.

      • Govtech Nucleus Unit (2024)

        Govtech Nucleus Unit (2024) - Junior Data Scientist. Developed prototypes and POCs of govtech webapps.

      • Bank Negara Malaysia (2025)

        Bank Negara Malaysia (2025) - Data Engineer. Building robust data pipelines and infrastructure.

    • contact

      Get in touch with Justin Koay. Contact options include Email, GitHub, and LinkedIn.

      • email

        Email Justin Koay at justintzeji@gmail.com.

        justintzeji@gmail.com

      • github

        Justin Koay on GitHub: source code for OpenPriceCatcher, BNM Events Calendar, OpenPAKW and more.

        GitHub Profile

      • linkedin

        Justin Koay on LinkedIn.

        LinkedIn Profile