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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.

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;
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Jeong Min Cho

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

Featured Work

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

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

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

Java / Spring Boot 90%
Python / FastAPI 88%
Node.js 85%
PostgreSQL 85%
MongoDB 80%

Cloud & DevOps

Docker 90%
AWS 85%
CI/CD / Jenkins 88%
GCP 75%
DigitalOcean 80%

Technologies I Work With

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

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

Software Development Logistics Consulting Catonsville, Maryland
Jul 2023 - Apr 2024

Returned to lead development of enterprise applications with expanded responsibilities.

  • Led frontend development with React, building reusable components and implementing state management
  • Developed and maintained RESTful APIs using Java and Spring Boot for enterprise client applications
  • Deployed and managed applications on AWS using EC2, S3, and RDS for scalability
  • Automated build and deployment pipelines with Jenkins and Docker, streamlining 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
Nov 2022 - Jun 2023

Built and enhanced dashboard features for enterprise monitoring platform.

  • Built and enhanced dashboard features using Next.js, React, and GraphQL
  • Wrote unit and integration tests improving code reliability and reducing regression issues
  • Maintained legacy PHP systems while supporting containerized deployments with Docker
  • Identified and resolved bugs across the dashboard, improving UX 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

Education

Bachelor of Science in Computer Science

George Mason University
2017 - 2021

GPA: 3.8/4.0 - Dean's List | Graduated Magna Cum Laude

Let's Work Together

Have a project in mind? Let's discuss how we can collaborate

Get in Touch

I'm always interested in hearing about new projects and opportunities. Whether you have a question or just want to say hi, I'll get back to you!

Location Seoul, South Korea
Availability Open to opportunities