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01
Experience and education
2024.12 — Present
DIREA Financial Software Engineer
I develop Java logic and operations interfaces for CruzLink and support launches and operations for financial institutions. I configured the team’s execution environment around its headquarters-database policy and shared PCs. I organized records of scattered issues and decisions and automated issue management and patch-note writing. I designed, built and introduced a development harness in which people check the results after AI completes its work.
Read how I built the team’s AI-native development environment2024.01 — 2024.06
Deltoid Backend Developer
I developed a Java and Spring Boot backend for processing and storing IMU Bluetooth and Radar sensor data in a medical gait-analysis system. I built patient and examination APIs, designed PostgreSQL schemas, and used tests and refactoring to support maintenance. I also handled deployment to AWS EC2 and automated deployment with GitHub Actions.
Education, training and service
- Education
- Dankook University · Bachelor’s degree in Visual Contents, minor in Software · graduated August 2023
- Training
- Naver Cloud AIaaS Developer Program · 1,004 hours (2023)
TABA AI & Big Data Academy · 640 hours (2022) - Awards
- COVID-19 high-risk prediction ML model project · TABA Final Project Excellence Award (2nd place) · 2022
Gyeonggi Youth Gap Year IT Outstanding Case · 2023 - Language
- TOEIC 960 · September 7, 2024
- Military service
- KATUSA · Republic of Korea Army · Sergeant, completed service · January 2017 — October 2018
02
Tools for development and operations
- Servers and databases
- Java · Spring Boot · Oracle
- Team development and automation
- Claude Code · Codex
- Product implementation
- Embedding-based similarity search · Art-style clustering · Google Gemini API · Replicate API · BytePlus ModelArk API
- Deployment and operations
- OCI · AWS · Docker · Cloudflare · CI/CD
03
Defining AI tasks and checking results
I set product direction and priorities, then give AI the source material, file ownership and completion criteria it needs. After delegating research, writing, implementation and checks, I compare the results against those criteria. I document procedures that have been checked so AI can follow them in later tasks.
I built a tool that recalculates offer prices and estimated costs when I select an existing sourcing unit price and enter an assumed amount in the same currency and unit, for linked items with registered formulas and quantities. This is a what-if calculation that leaves actual prices and historical order amounts unchanged. It links products, prices, orders and development history to their sources so the data and conditions used in each calculation can be found. Reconciliation of actual sales, inventory and financial records is separate.
04
Design and implementation cases
05
Contact and public projects
Email me about roles or collaborations.