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47star/README.md

DongHoon Yoo

A backend software and network engineer specializing in DevOps and system optimization. I enjoy discovering and understanding the underlying philosophy in both people and technology. With an open approach to technology, I have a background in software, server management and network systems. An enthusiast for learning, researching, and adopting innovative technologies with intuition and conceptualization.

Skills

  • Cloud: AWS
  • Infrastructure: Kubernetes, Windows Hypervisor Platform(Hyper-V), VMware vSphere, CDK(CloudFormation), Terraform
  • Server/Network: Windows Server, Linux, Container, In/exterior Networking1
  • Language: Kotlin, TypeScript, Python 3, PHP 7.
  • Framework: Spring Boot, Ktor, Next.js, Compose Multiplatform, tRPC
  • Database: SQLite, DynamoDB, MySQL
  • Observability: Splunk Enterprise(SPL)
  • ETC: Windows Image Manufacturing, UI Design, eBPF/XDP, End-device Supervision, LLM2

Experiences

  • 2022 ~ 2023. Cyber Operations Center, Republic of Korea Air Force
    • Cyber Protection Competitions, ROK Air Force: Grand Prize
    • CCE 2023, National Intelligence Service3: Finalist@Gov
  • 2020 ~ 2021. SANDBOX NETWORK(Freelancer)
    • Lead Software and DevOps Engineer
      • Royal Culture Festival(Korea Heritage Agency4)
      • Cyber Museum(Gwacheon National Science Museum5)
      • Twitch Partnership Party 2020
      • Smoking Cessation Campaign(Ministry of Health and Welfare6)
      • Royal Culture Festival

Contacts

To protect privacy and prevent tracking, all usernames were created inconsistently.

  • Email: yoo[at]donghoon.net, nano[at]kakao.com
  • Matrix: @donghoon:matrix.org

(C) 2025 DongHoon Yoo. All rights reserved.
All trademarks referenced herein are the properties of their respective owners.

Footnotes

  1. Linux Kernel Networking, Cisco IOS XE, Cisco Nexus, MikroTik RouterOS ↩

  2. Parameter-Efficient Fine-Tuning (PEFT) and Retrieval-Augmented Generation (RAG) with Transformers for Practical Applications ↩

  3. 대한민국 국가정보원 ↩

  4. 국가유산진흥원, 대한민국 국가유산청(문화재청) 산하 공공기관 ↩

  5. 대한민국 국립과천과학관 ↩

  6. 대한민국 보건복지부 ↩

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