Main language
Currently used at work
Sohyeon Lee
Backend Developer
3-year backend developer :)
I've been working from 2022 as a backend developer
- 2 + Years of Experience
- 3 Completed Projects
SHL Dev
Skills
Skills
Java
Spring
Main framework
Currently used at work
Node.js
Backend runtime for [DoUNeedSchedule Project]
Mybatis
Basic CRUD
Recursive/Dynamic queries
JPA
Basic CRUD
JPQL & Native queries
Spring Data JPA
JavaScript
Basic functionality
React
Basic features (useEffect/useState etc.)
Used in [DoUNeedSchedule Project]
AWS
EC2
Used in [DoUNeedSchedule Project] & [Bowmeow Project]
Azure
App Service
Azure Function
Gateway
Currently used at work
Docker
DockerFile
Docker Compose
Used in multiple projects and current work
MySQL | MariaDB
Basic functionality
Routines (stored procedures & functions)
Currently used at work
MongoDB
Basic commands (CRUD)
Redis
Caching
Pub/Sub
Spring Data Redis
Used in [Ohguohgutalk Project]
Github | GitLab
Github currently used at work
GitLab used in government-funded training
Skills
History
History
Education & Experience
MSA-based Pet C2C Trading Platform Project
BowMeow Project
2024.08 ~ Present
MSA architecture learning project
Currently in progress & check [Projects] section
Korea National Open University Computer Science
Korea National Open University Computer Science
Transferred to 2nd year, currently enrolled
Transferred to 2nd year, currently enrolled
2023.03 ~ Present
Expected graduation 2025.06
Transferred to 2nd year in 2023.03
WebSocket-based Web Messaging Platform Project
OhguOhgutalk Project
2023.02 ~ 2023.08
WebSocket usage and JPA, mongoDB learning project
Only works locally
React & Node.js Study and Project
DoUNeedSchedule Project
2022.05 ~ 2022.08
React course study and project with 2 team members
Frontend server (React) & Backend server (Node.js)
Government-funded IT Academy Completion
The Joeun Academy
Java Web Development & App Development
(Secure Coding, Docker) Training Course Completion
Java Web Development & App Development
(Secure Coding, Docker) Training Course Completion
2021.10 ~ 2022.05
Java concepts during 7-month training period
Progressive development process of Spring and JDBC
Total 2 projects completed
Work Experience
HealthConnect Inc.
Healthcare B2B & B2C Service
2022.09 ~ Present
Started as full-stack developer
Currently working as backend developer
History
Projects
Personal Project
Completed Projects
View Project
DoUNeedSchedule Project (Do You Need Schedule?)
Travel schedule sharing platform focused on domestic travel
Projects
Blog
Latest development stories and technology sharing
2026 February 01
SRT/KTX Reservation System Design
🤔 I’m Curious As someone from the provinces who moved to Seoul, I started wondering how the holiday reservation war that repeats every Lunar New Year and C...
2026 February 01
Performance Optimization Guide: Improving TPS and Response Time
📊 Performance Metrics System performance is generally evaluated using two key metrics. Response Time The time from when a client sends a request until r...
Blog