Timeline GitHub Contact ---

Cloud / DevOps
ENGINEER
SANGHYUN JUN

B.S.

Computer Science
& Applied Mathematics and Statistics

Stony Brook University, SUNY Korea

Class of 2026

I enjoy detecting real production issues, digging into root causes, and building reliable solutions. Focused on security hardening, cost optimization, and performance improvement through hands-on troubleshooting and infrastructure design.

View Timeline
Sanghyun Jun

Portfolio & Career

TIMELINE

Feb 2026 - Present
Coursework In Progress
PPA-Dun Project
Cloud
GCP
Container
k8s
Runtime
GKE
Deploy
Jenkins
IaC —
Extra
Redis

PPA-Dun: Fantasy Baseball Draft Kit
[CSE416] Software Engineering

Feb 2026 - Mar 2026
Project
DayOne Project
Cloud
AWS EC2
Container
Docker
Runtime —
Deploy
GitHub Actions
IaC
CloudFormation
Extra
Redis

DayOne
AI Syllabus-to-Google Calendar

Aug 2025 - Dec 2025
Experience

Stony Brook University COMPAS Lab

Stony Brook, NY

Undergraduate Research Assistant (CSE 487, Advisor: Prof. Mike Ferdman)

  • Resolved a critical OpenStack Ironic baremetal provisioning failure (PXE boot, IPA agent, deployment-image validation).
  • Recovered failed deployment via RAID reinitialization, root disk hint correction, and image checksum sync.
Jan 2025 - Jul 2025
Experience

Kakao Tech Bootcamp

Pangyo, Korea

Cloud Native Track Trainee

  • 2nd Place - Hackathon (Feb 2025)
  • 3rd Place - Load Testing Tournament (Jul 2025)
Apr 2025 - Jul 2025
Project
NEMO Project Team Project
Cloud
GCPAWS
Container
Dockerk8s
Runtime
EC2EKS
Deploy
HelmArgoCD
IaC
Terraform
Extra —

NEMO
Group Participation Service

Feb 26 - 28, 2025
Project
Biz-News Project 2nd Place
Cloud
AWS
Container
Docker
Runtime
EC2
Deploy
GitHub Actions
IaC —
Extra —

Biz-News
AI News Summary & Recommendation

2nd Place — Kakao Tech Bootcamp Hackathon

Sep 2024 - Dec 2024
Coursework
CSE316 Project Coursework
Cloud —
Container —
Runtime —
Deploy —
IaC —
Extra
React.jsNode.jsMySQL

CO;Ders Us Website
[CSE316] Fundamentals of Software Development

Mar 2021 - Dec 2024
Experience

CO;Ders US (Non-Profit)

Incheon, Korea

Vice President (2021) | Member

  • Delivered programming education to promote technical skills and problem-solving abilities.
  • Taught elementary students scratch block coding; middle school students in Java programming.

CONTACT

Email

sean.jun2001@gmail.com

GitHub

halfmoon01

LinkedIn

sean-jun

Instagram

@im__halfmoon

ABOUT THIS SITE

This portfolio is a fully serverless application — every resource from DNS to backend is provisioned and managed through AWS CloudFormation.

CI / CD
GitHub Source Code
GitHub Actions Auto Deploy
CloudFormation
CloudFormation IaC
Hosting
Route 53
Route 53 DNS
ACM
ACM SSL/TLS
CloudFront
CloudFront CDN
S3
S3 Static Hosting
Backend
API Gateway
API Gateway HTTP API
Lambda
Lambda Visitor Counter
DynamoDB
DynamoDB Count Storage