I explore broadly,
and dive deeply.
I am Sua Choi, an AI and backend engineer. I build backend systems and AI models, share what I learn, and expand how I develop.
I explore broadly and dive deeply.
Location
South Korea
Education
Student at DGSW
Focus
AI · Backend
Education
Daegu Software Meister High School
AI Software Department · March 2025 – Present
- Studied Java, Python, TypeScript, HTML, and CSS.
- Studied data structures, databases, software engineering, networking, and AI modeling.
Growing together by sharing what I learn.
As a club team leader, I taught backend development and shared my experiences through student lectures. I continue sharing knowledge so that what I learn can support other people’s challenges and growth.
I use Codex to structure PRDs and specifications, automate repetitive tasks, and build agent workflows. This helps me turn ideas into working projects quickly; I have received more than ten awards, including a ministerial award.
Lessons from my projects
Verify performance and failure behavior.
I traced database lock contention and synchronous notification delays, compared response times, and reproduced failures to verify data consistency and recovery.
Share the reasoning behind decisions.
In the water level estimation project, I learned that sharing approaches, results, and the reasons behind choices helps a team move in the same direction.
Revise assumptions based on results.
Experiments that do not meet expectations still inform the next decision. I revise my assumptions based on results rather than holding on to the initial hypothesis.
Agree on responsibilities and deadlines.
Working with teammates with different circumstances and priorities taught me to agree on clear responsibilities and deadlines.
Writing and interests
I document bottlenecks and their solutions on my blog. This space also brings together books, games, and music I enjoy.