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I am currently working as a software engineer at NAVER Corp (@naver).

More than 3 years of software engineering experience with specialties in backend development, CI/CD operation, and K8s based environment.

Always interested in Cloud-Native Environment projects like Kubernetes.

• NAVER Corp internal platform team (2022.07 - Present)
  • Implemented K8s Dynamic Admission Handler for internal clusters.
  • Implemented "K8s Control Plane in another K8s" to improve the resource usage efficiency of K8s control-plane components.
  • Worked on a PoC to implement a new internal PaaS based on the K8s Operator.
• NAVER Pay next generation project. (2021.03 - 2022.06)
  • Implemented batch for "Cancellation due to Network Timeout" (망상취소 배치) to deal with external API instability integrated with NAVER Pay Point system.
  • Converted all codes written in Java to Kotlin to improve productivity and to reduce quantity of codes.
  • Refactored structure of running tests to improve stability & performance of project CI.
  • Implemented a migration batch for massive data using Reactive Stream DB connection.
    • Use Spring Batch with Reactive Stream DB connection to migrate massive data into new system.
  • Participated in the project "Re-implement NAVER Pay Point System".
    • Use sharded RDB (internal platform) to reduce database load.
    • Implement new API for brand-new service.
• Participate in on-boarding program (2020.12 - 2021.02)

• Developed Admin System for brand new service "KakaoTalk Wallet (카카오톡 지갑)"
  • Click here to see details

• Develop On-Demand Image Resize Module based on AWS Lambda & AWS Cloudfront
  • Click here to see details
• Add REST API into existing Web Backend
  • Click here to see details

• NAVER Campus HackDay Participant
  • 2020 Summer
  • 2019 Winter
  • 2017 Winter
  • 2016 Summer
• Hanyang University Programming Contest System Manager / 2014.11 - 2017.12
  • Setup & operate contest system infrastructure.
• Develop & operate Pub Management System for Annual Festival in University / 2014.07 - 2019.09
  • Backend (REST API) Repository
  • Frontend Repository
• Update "Spotboard DOMjudge converter"
• Develop "Online Judge - Code Judge Module" for personal practice

• Certified Kubernetes Administrator (CKA)
  • Valid from October 30, 2021 to October 29, 2024
  • See credential
• Certified Kubernetes Application Developer (CKAD)
  • Valid from April 24, 2022 to April 24, 2025
  • See credential

• Department of Computer Science, Hanyang University - Bachelor's degree / Graduated
  • 2013.03 - 2020.08
• University of California, Irvine - Participant of "2017 International Summer Undergraduate Research Fellowship"
  • 2017.07 - 2017.08

• Korean 🇰🇷 - Native
• English 🇺🇸 - Secondary Language