Summary
Overview
Work History
Education
Skills
Timeline
Generic
Woochang Chang

Woochang Chang

Springfield,VA

Summary

Portfolio : woochangchang.com

Software Engineer with hands-on experience building and troubleshooting full-stack web applications in production environments. Strong in debugging complex systems, analyzing API behavior, and resolving real-world issues. Experienced in React, REST APIs, and database integration. Proven ability to identify root causes, improve system performance, and deliver reliable solutions.

Overview

7
7
years of professional experience

Work History

Software Engineer

Circle POS
Springfield, VA
12.2025 - Current
  • Developed digital restaurant menu system, enabling real-time updates and multi-language support for enhanced customer experience.
  • Built a QR-based ordering platform using React and Next.js, enabling seamless customer ordering experience.
  • Integrated frontend applications with backend APIs and POS database (C#/.NET, SQL Server), streamlining data communication.
  • Troubleshot API communication issues and resolved data synchronization problems across systems.
  • Improved load performance and reduced latency across mobile and tablet environments.
  • Contributed to system design for POS integration, ensuring scalability and reliability of data flow across platforms.

Software Engineer

World Bankcard Services
Fairfax, VA
03.2025 - 11.2025
  • Developed full-stack Korean taxi dispatch platform enabling real-time ride tracking and efficient driver management.
  • Built a React-based web interface integrated with Google Maps API for live geolocation and route visualization.
  • Designed and implemented RESTful APIs for ride requests, driver matching, and trip status updates.
  • Diagnosed and resolved critical system issues including API failures, data inconsistencies, and UI rendering bugs to enhance platform reliability.
  • Improved application performance by optimizing state management and reducing unnecessary re-renders.
  • Investigated edge cases in asynchronous data flow and implemented fixes to ensure data consistency.

Software Engineering Intern

Atom Tech Solutions
Berkeley, California
09.2024 - 11.2024
  • Developed a Yelp-like web application using Node.js, Express.js, MongoDB, HTML, CSS, and EJS.
  • Implemented backend APIs and handled database operations for data storage and retrieval.
  • Debugged and optimized application performance and improved frontend user experience.

Operations Specialist (UAV / Control Tower)

Republic of Korea Army
Seoul, South Korea
04.2019 - 11.2020
  • Coordinated UAV operations and facilitated real-time communication between control units to enhance mission effectiveness.
  • Ensured operational accuracy in high-pressure environments, contributing to successful mission outcomes.
  • Coordinated logistics for personnel deployment and equipment management.
  • Monitored supply chain operations to ensure timely resource availability.
  • Assisted in developing operational protocols for efficient task execution.

Education

Master of Science - Computer Science

Binghamton University
Binghamton NY
12-2024

Bachelor of Science - Computer Science & Applied Mathematics

University At Albany
Albany, NY
12-2021

Skills

Languages: JavaScript, Python, Java, C
Frontend: React, HTML, CSS
Backend / APIs: REST APIs, Nodejs (basic), NET Entity Framework
Database: SQL, Microsoft SQL Server
Tools: Git, GitHub, Linux, Visual Studio
Core Strengths: Debugging, Troubleshooting, API Integration, Performance Optimization

Timeline

Software Engineer

Circle POS
12.2025 - Current

Software Engineer

World Bankcard Services
03.2025 - 11.2025

Software Engineering Intern

Atom Tech Solutions
09.2024 - 11.2024

Operations Specialist (UAV / Control Tower)

Republic of Korea Army
04.2019 - 11.2020

Master of Science - Computer Science

Binghamton University

Bachelor of Science - Computer Science & Applied Mathematics

University At Albany
Woochang Chang