Fullstack Software Engineer

Hello, I'm Jeong Min Cho | I build scalable web applications

A Fullstack Software Engineer with 3+ years of experience building scalable web applications using React, Next.js, Java, and Python across enterprise and startup environments.

View My Work Get In Touch

portfolio.tsx

const developer = {
  name: "Jeong Min Cho",
  title: "Fullstack Engineer",
  skills: ["React", "Next.js", "Java", "Python"],
  location: "Seoul, South Korea",
  available: true,
};

export default developer;

Ship Fast

Clean Code

Problem Solver

Scroll to explore

<about>

Building Scalable Solutions

I'm a Fullstack Software Engineer based in Seoul, South Korea, with 3+ years of experience building scalable web applications. I specialize in React, Next.js, Java, and Python, working across both enterprise and startup environments.

I graduated Magna Cum Laude from George Mason University with a BS in Computer Science. My experience spans from building dashboard features at ScienceLogic to developing fullstack SaaS platforms with secure authentication systems.

I'm passionate about clean architecture, CI/CD automation, and building products that solve real problems. Whether it's designing RESTful APIs, containerizing services with Docker, or crafting responsive UIs, I focus on delivering high-quality, maintainable code.

3+ Years Experience

4 Companies

3.8 GPA

15+ Technologies

Download Resume

</about>

Featured Work

A selection of projects I've worked on, showcasing my skills and expertise

View Details Live Demo Blog Post

ShieldMod

A comprehensive full-stack software licensing platform with hardware-based protection, featuring web dashboard, user portal, and secure Windows desktop client. 82,000+ lines of code across Python, TypeScript, and C++.

FastAPINext.jsC++PostgreSQLDocker

Live Demo Source

Unicode Encoder Decoder

A web utility for encoding and decoding Unicode characters, built to showcase the unicode-escaper npm package. Convert text to various Unicode formats with an intuitive interface.

SolidJSTypeScriptNPM Package

Live Demo Source

Rate My GMU Professors

A platform for George Mason University students to discover and rate professors. Search, filter, and share reviews to help fellow students make informed course decisions.

WebReactFull StackEducation

Live Demo

SDLC Landing Page

A modern, responsive landing page built for a client. Features smooth animations, clean design, and optimized performance for lead generation.

Next.jsReactTailwind CSSClient Work

Source

BDO Korean Patcher

A desktop application for installing Korean language patches for Black Desert Online. Features font installation, patch management, and a user-friendly installer interface.

C#.NETWinFormsDesktop App

Live Demo

Love Letter

An interactive and fun web experience built with vanilla technologies. Features playful animations and engaging interactions without any framework overhead.

HTMLJavaScriptTailwind CSS

NPM Packages

unicode-escaper

A lightweight npm package for encoding and decoding Unicode escape sequences. Supports multiple formats including \uXXXX, \u{X}, \xNN, HTML entities, and U+XXXX notation.

NPMTypeScriptUnicodeUtility

is-thenable

A tiny, zero-dependency npm package to check if a value is thenable (Promise-like). Useful for handling both Promises and synchronous values in async code.

NPMTypeScriptPromiseUtility

is-cron

A lightweight npm package for validating cron expressions. Check if a string is a valid cron schedule with support for standard and extended cron syntax.

NPMTypeScriptCronValidation

</projects>

Technical Expertise

Technologies and tools I use to bring ideas to life

Frontend

React 95%

Next.js 92%

TypeScript 90%

Astro 85%

ASP.NET 75%

Backend

Node.js 88%

Python / FastAPI 88%

PostgreSQL 85%

MongoDB 80%

Java / Spring Boot 85%

Cloud & DevOps

Docker 90%

AWS 85%

CI/CD / Jenkins 88%

DigitalOcean 80%

GCP 75%

Technologies I Work With

JavaJavaScriptTypeScriptPythonC++C#SQLReactNext.jsAstroASP.NETSpring BootFastAPINode.jsAWSDigitalOceanGCPDockerJenkinsCI/CDPostgreSQLMySQLMongoDBFirebase

</skills>

Work Experience

My professional journey and the companies I've worked with

Founder & Fullstack Software Engineer

Self-Employed • South Korea

Nov 2025 - Present

Building a fullstack SaaS platform with secure authentication and desktop client application.

Built fullstack SaaS platform with Next.js 14, TypeScript frontend backed by FastAPI and PostgreSQL
Developed secure license management system with HWID binding, JWT authentication, and AES-256 encryption
Created Windows desktop client in C++17 with ImGui, featuring auto-updates and server-based authentication
Integrated third-party APIs including Telegram Bot for notifications and OCR services for text recognition

Next.jsTypeScriptFastAPIPostgreSQLC++Docker

Network Management and Operations Specialist

Republic of Korea Army • South Korea

May 2024 - Nov 2025

Maintained and secured intranet infrastructure supporting mission-critical military operations.

Maintained and secured intranet infrastructure supporting 1,000+ personnel with 99%+ uptime
Implemented security protocols and conducted regular system audits for classified communications
Troubleshot and resolved network issues under time-sensitive conditions

Network SecuritySystem AdministrationInfrastructure

Fullstack Software Engineer

USTigers Inc • Gainesville, Virginia

Nov 2022 - Apr 2024

Developed fullstack web applications with React and Spring Boot in an Agile environment.

Developed responsive user interfaces with React.js and JavaScript, improving application usability and performance
Designed and built RESTful APIs using Java and Spring Boot to enable seamless frontend-backend communication
Deployed and managed applications on AWS, leveraging services such as EC2, S3, and RDS for scalability
Automated build and deployment pipelines with Jenkins and Docker, streamlining the CI/CD workflow
Collaborated with cross-functional teams in an Agile environment to deliver features on schedule

ReactJavaSpring BootAWSJenkinsDocker

Software Engineer

ScienceLogic Inc • Reston, Virginia

Jun 2022 - Nov 2022

Built and enhanced dashboard features for enterprise monitoring platform.

Built and enhanced dashboard features using Next.js, React, and GraphQL, collaborating with senior engineers to deliver production-ready code
Wrote unit and integration tests that improved code reliability and reduced regression issues
Maintained and updated legacy PHP systems while supporting containerized deployments with Docker
Identified and resolved bugs across the dashboard, improving overall user experience and system stability

Next.jsReactGraphQLPHPDocker

Junior Software Engineer

Software Development Logistics Consulting • Catonsville, Maryland

Jan 2022 - Oct 2022

First tenure developing responsive user interfaces and backend APIs for enterprise clients.

Developed responsive user interfaces with React.js and JavaScript, improving usability and performance
Designed and built RESTful APIs using Java and Spring Boot for seamless frontend-backend communication

ReactJavaScriptJavaSpring Boot