Hello!
I’m Jeongil Jeong, Backend Developer
Sharing my development journey through honest documentation of challenges faced, solutions found, and lessons learned. Thank you for visiting.
Main Sections
Blog
Recording problems I’ve encountered, solutions, and learning experiences
Documentation
Documenting development rules and references
About Me
Introducing my journey as a backend developer and tech stack
Recent Posts
[Reflections on MSA 2/6] Inter-Service Communication in MSA - How Should We Do It?
Previous: [Reflections on MSA 1/6] What is Microservices Architecture (MSA)? In the previous post, we explored the basic concepts, advantages, and disadvantages of Microservices Architecture (MSA). On...
January 15, 2026
[Reflections on MSA 1/6] What is MSA (Microservices Architecture)?
As developers, I think we all encounter moments when we find ourselves pondering about MSA (Microservices Architecture). Each time, we fall into various considerations. I’ve also had moments of contem...
January 14, 2026
Making LLM My Second Brain: Using Personal Blog as RAG with MCP Server
Hello! I’m Jeongil Jeong, a 3-year backend developer working at a proptech platform. Recently, AI, especially LLMs (Large Language Models), has been gaining significant attention among developers. Whi...
December 31, 2025
Solving GitHub Actions Free Tier Limits: Our Journey from Self-hosted Runners to Jenkins
Hello! I’m Jeongil Jeong, a 3-year backend developer working at a proptech platform. This is the story of trial and error we experienced while improving our CI/CD pipeline at the company. I’d like to ...
December 16, 2025
My Journey to Passing the CKA (Certified Kubernetes Administrator) Exam
Introduction Hi, I’m Jeongil Jeong, a backend developer with 3 years of experience, currently working at a proptech platform. Containerization has become increasingly important in modern web server de...
December 1, 2025