Backend interfaces
Designing endpoints, validating edge cases, and keeping data flow explicit enough for other people to extend.
Seoul · backend · automation · open source
I build small, reliable systems that make repeated work disappear.
Backend and automation developer focused on clean APIs, careful maintenance, and practical developer tooling. I like work that leaves a codebase easier to understand than I found it.
Selected focus
What I work on
I prefer scoped problems with measurable outcomes: tests that explain behavior, scripts that remove manual steps, and small fixes that make maintenance less fragile.
Operational tooling
Turning repeated checks, deployment chores, and data cleanup into scripts or services that fail loudly and recover cleanly.
Maintenance-minded fixes
Reading issue context before coding, keeping pull requests small, and documenting the tradeoffs behind each change.
Process
How I approach a fix
1
Reproduce first
Confirm the behavior locally or through a failing test before touching implementation code.
2
Change the smallest surface
Prefer focused patches over broad rewrites. If a larger cleanup is needed, separate it from the fix.
3
Leave a trail
Write down what failed, what changed, and what I would check next time. Future readers should not have to reverse-engineer the decision.
Notes
Open-source work log
Short writeups about issues I worked on: what was broken, how I narrowed it down, and what I learned from the codebase. The goal is to make the work inspectable, not to make it sound bigger than it was.
Contact