Jin Hong

Laguna Hills,CA

Summary

Backend engineer with 10+ years of experience designing and operating production-grade systems across payment processing, ERP, and logistics domains. Strong expertise in C#/.NET, relational databases, and system architecture, with hands-on experience in AWS infrastructure (EC2, RDS, Load Balancing) and containerized deployments. Proven ability to build scalable, reliable systems that support real business operations.

Overview

years of professional experience

Work History

Sales Director (Infrastructure & Cloud Services)

Vlan24 (IDC / Cloud Services)

01.2025 - 01.2026

Designed infrastructure solutions for clients including cloud, colocation, and managed IT services
Analyzed server costs and proposed optimized architecture strategies
Worked closely with engineering teams to align technical solutions with business needs
Gained deep understanding of infrastructure operations, pricing models, and deployment environments

Backend Engineer / Systems Developer

TAAD (Apparel Manufacturing & Logistics)

01.2016 - 01.2025

Designed and developed a full-scale ERP system managing apparel production, finance (AR/AP), payroll, and operations
Built a warehouse management system (WMS) capable of handling 100,000+ items/day with high reliability
Architected database schemas and business workflows to support real-world logistics and supply chain operations
Migrated database from MSSQL to PostgreSQL to reduce operational costs and improve scalability
Deployed and maintained production systems used daily by internal teams
Continuously improved system performance and stability through iterative enhancements
Led end-to-end development lifecycle: requirements → design → development → deployment → maintenance

Network & Backend Engineer (Payment Systems)

GoCash GameCard

01.2012 - 01.2016

Designed and operated a cloud-based payment infrastructure on AWS using EC2, RDS, and Load Balancers
Ensured 24/7 system availability for financial transaction processing systems
Integrated multiple third-party payment APIs (e.g., Nexon, Bank of America Brazil)
Monitored live systems and resolved production issues in real time to prevent service disruption
Improved system stability and fault tolerance through proactive debugging and optimization
Maintained secure and reliable backend systems handling sensitive financial data

Education

Bachelor’s Degree - Computer Science

Indiana University – Purdue University

Skills

Languages: C#, SQL
Frameworks: NET / ASPNET Core
Databases: MSSQL, PostgreSQL

Architecture: REST APIs, System Design, Distributed Systems
Practices: SDLC, Agile Development, CI/CD Concepts, Production Operations
Other: API Integration, Performance Optimization, Monitoring & Troubleshooting

Timeline