• Name: DongUk CHOI
• Age: 27 years old
• University : Hongik University
• Major: Department of Global Business Administration
• Birthplace: Seoul, South Korea
• Japanese: チェ·ドンウク

$$ {Seeking\ growth\ in\ the\ cloud\ and\ DevOps\ through\ constant\ challenges.} $$

👨🏻‍💻 Project Summary

CodeBenton / (Lambda Service on VM(EC2))

Github Link →

Topic SoftBank Hackathon 2025 (The Final)

Period: 2025.11.29~2025.12.07(1W)

Personnel: Frontend (1)/ Backend (3) / Infra(2)

Teck: AWS EC2 · Auto Scaling Group ·SQS Docker · Python · Linux Shell Script (User Data) · Lambda Role: PM & Infra

• Implement cold start bypass and container reuse architecture
• Flexible Auto Scaling implementation based on SQS metrics
• Building an Immediate Input System with a Warm Pool (Leveraging ASG's Warm Pool capabilities, we have reduced service time on a worker instance from 3 minutes to 30 seconds)

HikariFlow / 光フロー(Infra deploy assist service)

Github Link →

Topic:SoftBank Hackaton 2025 (preliminary round)

Period: 2025.11.02~2025.11.09(1W)

Personnel: Frontend (1)/ Backend (2) / Project Manager(1) / Infra(ALL)

Tech: AWS Amplify · API Gateway · CloudFront · WAF · S3 · Lambda · SQS · Step Functions · CloudWatch · AWS Budget · TypeScript