HUANG CHENG JIUN's Resume

HUANG CHENG JIUN

Software Engineer with expertise in backend development, infrastructure, and DevOps. Passionate about building reliable systems.

Taipei, Taiwan

HUANG CHENG JIUN's profile picture

About

Software Engineer specializing in backend development with Django and RESTful APIs, infrastructure management with Kubernetes and Proxmox VE, and system observability using ELK Stack, Grafana, and APM. Experienced in CI/CD pipeline automation and penetration testing.

Work Experience

Appier

Oct. 2024 - Mar. 2025

Backend Engineer Intern - AiQUA

  • Built monitoring for backend services using ELK Stack and APM, improving system visibility and log analysis
  • Designed and implemented RESTful APIs in Django for product search by tags, enabling dynamic tag-based filtering and seamless integration across internal services
  • Optimized Dockerfile structure, layer handling, and caching strategies, reducing container build time by 80% and final image size by 40%
  • Django
  • APM
  • Docker
  • RESTful APIs

NTU CTLD

Jul. 2023 - Dec. 2024

Infrastructure Engineer Intern - NTU COOL

  • Maintained Proxmox VE infrastructure across multiple datacenters and dozens of servers, ensuring high availability and performance
  • Configured Grafana and Prometheus for real-time metrics and log monitoring; analyzed logs and implemented remediation strategies
  • Ensured rapid recovery by restoring service within 4 hours for a campus of over 30,000 students when issues occurred, demonstrating strong problem-solving and responsibility
  • Proxmox VE
  • Infra

NYCU HCRC

Jun. 2022 - Oct. 2023

Cyber Security Penetration Tester

  • Conducted penetration tests on at least five organizations, uncovering and remediating critical vulnerabilities
  • Leveraged Metasploit, Nmap, and Burp Suite to conduct vulnerability discovery and exploit security weaknesses
  • Generated and delivered comprehensive vulnerability reports to stakeholders, guiding remediation efforts and improving security posture
  • Penetration Testing
  • Security

LINE Taiwan Limited

Jul. 2022 - Jun. 2023

Software Engineer Intern - Central Dev

  • Presented "Tackle the Infodemic of Misinformation from LINE" at LINE Taiwan headquarters to over 30 GDSC members on March 27, 2023
  • Provisioned a full-stack observability system using Kafka and ELK Stack (Logstash, Elasticsearch, Kibana) to monitor microservices
  • Developed CI/CD pipelines in DroneCI and managed Kubernetes deployments with Kustomize and ArgoCD, streamlining infrastructure updates
  • Kafka
  • ELK Stack
  • Kubernetes
  • CI/CD

Education

National Taiwan University (NTU)

2023 - 2025
MBA iN INFORMATiON MANAGEMENT

National Central University (NCU)

2019 - 2023
BBA iN INFORMATiON MANAGEMENT, MiNOR iN COMPUTER SCiENCE & INFORMATiON ENGiNEERiNG

Skills

  • Python
  • Java
  • C++
  • Assembly
  • Docker
  • Kubernetes
  • Proxmox VE
  • Grafana
  • ELK Stack
  • CI/CD
  • Kafka
  • Git
  • DroneCI
  • ArgoCD
  • RESTful APIs
  • Django
  • Elastic APM
  • Network Architecture
  • Operating Systems
  • System Administration

Side projects

Visual Volume

Visual Volume visualizes volumetric data using Three.js and WebGL, rendering 3D data from sources like CT scans.

  • Python
  • JavaScript
  • GLSL
  • HTML
  • CSS