Hi there 👋

This is Jisu Yu, aka Tetrahedrite or MicroEdge.

Who am I?

I am an Infrastructure Engineer & SRE passionate about distributed systems, cloud architecture, and reliability.

I started my programming journey in 2012 and have since evolved into an engineer who loves diving deep into systems - from bare-metal hardware to container orchestration. I am dedicated to continuous learning and building robust, scalable infrastructure.

Where you can find me

• Blog: Tech notes and troubleshooting logs
• YouTube: Archive for my experimental projects
• GitLab: Self-hosted repository for personal engineering projects

Professional Experience

• Buzzni | SRE (Site Reliability Engineer)
  September 2025 ~ Present
• MS Benter | Backend Engineer
  May 2025 ~ August 2025
• Gridwiz | Embedded Software Engineer
  July 2023 ~ August 2024
• WSA DT Center | Electrical Engineer & Digital Twin Engineer
  March 2022 ~ November 2022
• WSA (Woosung Autocon) | Electrical Engineer
  September 2017 ~ January 2022
  (Served as Skilled Industrial Personnel in lieu of military service)

Technical Interests & Competencies

• Infrastructure & DevOps: Specialized in Kubernetes, distributed storage (Ceph), and database clustering (MongoDB, PostgreSQL).
• Engineering Philosophy: Fascinated by the entire engineering spectrum - from electrical/hardware systems to software infrastructure. I enjoy managing both physical home labs and virtualized cloud environments.
• Backend & Web: Experienced with backend frameworks like Spring Boot and FastAPI, with frontend capabilities in Vue.js.
• Automation: Dedicated to building infrastructure that integrates code seamlessly, enhancing engineering efficiency and developer satisfaction.
• Gaming: An avid gamer enjoying LoL, R6S, Pump It Up, and heavily modded Minecraft.

Certifications

• CKA: Certified Kubernetes Administrator (The Linux Foundation)
• CKAD: Certified Kubernetes Application Developer (The Linux Foundation)
• MTA: Software Development Fundamentals (Microsoft)