jangjunha

jangjunha 장준하

I am a software developer who enjoys building things that are useful or fun.

I value and enjoy the process of building and delivering products. Technically, I am most comfortable with engineering using Python. I aim to consider more diverse solutions and make better decisions.

Recently, I've been interested in learning how to build loosely coupled complicated systems and studying programming language theory.

Works.

  • Theori Software Engineer 2024.1 - now
    • Xint, On-demand AI hacker (Website)

      Productizes offensive security modules backed by hacker expertise to make them accessible for end users.

      Builds backend systems that process assets and vulnerabilities discovered in real-time by various modules.

      Configures and manages infrastructure to enable rapid product improvements.

  • 스포카 Full-stack Programmer 2018.8 - 2020.9
    • dodo cart, Cost Management Service for KR Offline Store (Website)

      Analyzes problems faced by internal customers in new business areas and rapidly delivers necessary backoffice products.

    • dodo point, Royalty Program and Message Marketing Service for KR/JP Offline Store (Website)

      Analyzes product metrics to establish OKR and improve the product.

      Develops necessary new features while stably operating complex, high-traffic systems.

  • Frientrip iOS Software Engineer 2017.10 - 2018.7

    Frip, Leisure and Activity Platform - iOS Engineering (App Store)

    • Redesign of product ordering and usage system to e-commerce style
    • Maintain iOS Application with RxMVVM
    • Separate production and test environment apps and automate deployment pipeline
  • Nego Backend Software Engineer 2015.12 - 2016.2

    Nego, E-commerce Lowest Price Change Notification Service

    • Maintain API server and cralwer and speed improvements through query optimization

Portfolio.

  • HeekTime, Timetable building application specialized in course searching (App Store) (Website)

    A project focused on user experience during the semester timetable planning process, available as both a website and iOS app.
    The server was initially written in Flask but recently completed migration to Firebase.

    More(ko)..

If you're interested more in my works, please visit the archive(ko) page.

Activities. Education.

  • Bachelor of Engineering in Computer Science and Engineering, Korea University 2016 - 2023.2
  • Graduated Sunrin Internet High School 2013 - 2016.2
  • Samsung Software Membership Outstanding Graduate Member of the 1st Junior Member 2014
  • Korea Olympiad in Informatics Competition Division, High School Section, Bronze Medal 2013
  • Korea Olympiad in Informatics Competition Division, Middle School Section, Silver Medal 2012
  • Korea Olympiad in Informatics Competition Division, Elementary School Section, Silver Medal 2009