Leo’s Build Log
PostsProjectsAbout한국어
Leo, the blog’s character

Leo(Semin Kim)

I design asynchronous processing so a service’s data never gets lost along the way, and I improve the structure by checking how it runs through logs and metrics. I’m extending my AI-native development and deployment and operations experience across service development as a whole.

How I work with AI

  1. 01
    AI agents do the implementation and reviewI split the work among agents with distinct roles and give each one only the context its scope needs.
  2. 02
    I check the tests, logs, and evidence, and make the final callA person decides what to build and whether to accept the result.
  3. 03
    Verifiable changes come before generation speedI’d rather leave a change that can be checked again than code that was simply fast to write.

Skills

AI

  • Agent orchestration
  • Context engineering
  • RAG
  • LLM API
  • Harness engineering
  • Local LLM
  • Fine-tuning

Full-stack

  • Python
  • Java
  • TypeScript
  • FastAPI
  • NestJS
  • Next.js
  • RabbitMQ
  • Redis
  • PostgreSQL

Operations & observability

  • Kubernetes
  • Argo CD
  • GitHub Actions
  • Docker
  • Prometheus
  • Grafana
  • Loki

Activities

  • 2026.09
    Assistant instructor, AX training for new developers - Hyundai AutoEverSupported about 50 trainees in hands-on AI agent practice with Claude Code
  • 2026.06
    Assistant instructor, AX training for executives - Samsung ElectronicsSupported about 30 executives in hands-on AI agent practice, answered their questions, and helped run the sessions

Education & certifications

  • 2026.01 –
    Samsung Software & AI Academy for Youth, cohort 15 · Java track
  • 2024.07 – 12
    Kakao Tech Bootcamp · Generative AI course
  • 2018.03 – 2025.02
    B.S. in Software Engineering, Tech University of Korea
  • 2024.07
    Engineer Big Data Analysis (Korea)
  • 2024.04
    SQL Developer (SQLD)

Contact