# Minsu Sohn

> Senior Backend Engineer | Java (10+ yrs) | Spring | Distributed Systems | Production Systems

Location: San Francisco, California, United States
Profile: https://flows.cv/minsusohn

Senior backend engineer with 10+ years of experience building and operating high-scale, production-critical systems.
 
Strong expertise in Java-based backend development, distributed systems, and system reliability.
 
At Electronic Arts, built and scaled high-traffic authentication and commerce systems serving millions of global users, including OAuth 2.0, SSO, and payment processing integrations.
 
Currently at SFO, focusing on modernizing legacy Java systems (Tomcat → Spring Boot) and improving system reliability through deep production debugging across application, database, and cloud layers (AWS).
 
In previous roles, worked with real-time systems and data processing platforms, gaining experience in system monitoring, scalability, and performance optimization.
 
In addition, I have experience working with real-time systems, robotics platforms, and AI-based applications, strengthening my understanding of system scalability and performance.
 
Looking to contribute to large-scale backend systems where performance, reliability, and real-world impact matter.

## Work Experience
### Software Engineer @ San Francisco International Airport
Jan 2025 – Present | San Francisco, CA
Own and operate mission-critical Java backend systems across AWS (EC2, RDS, CloudWatch) and on-prem environments, focusing on reliability, performance, and scalability

Lead production issue resolution through deep debugging across application, network, and infrastructure layers

Modernize legacy Java applications (Tomcat → Spring Boot, Java 21), reducing deployment complexity by 70% and improving startup performance by 60%

Enhance CI/CD pipelines and deployment automation to improve release stability and system reliability

### Software Engineer (Robotics, Autonomous Systems, AI) @ Hyundai Motor Group Metaplant America (HMGMA)
Jan 2024 – Jan 2025 | Savannah, GA
Developed real-time monitoring and tracking systems for robotics infrastructure

Improved system reliability and reduced operational downtime through system optimization and troubleshooting

Worked with distributed systems and messaging (MQTT) in production environments

### Independent Software Development (AI / Backend Systems) @ No-company. (Self-employed.)
Jan 2019 – Jan 2023 | San Francisco, CA
Developed backend services and data pipelines using Python and Flask for processing and analyzing large-scale datasets

Built data processing workflows for computer vision applications, focusing on system scalability and performance

Focused on system design and data processing aspects of AI-driven applications

### Senior Backend Software Engineer @ Electronic Arts (EA) Commerce & Identity
Jan 2008 – Jan 2018 | Redwood City, California
Built and scaled high-traffic Java-based authentication and commerce systems serving millions of global users
Developed OAuth 2.0, SSO, and secure login systems across PC, PlayStation, and Xbox platforms
Designed and implemented payment processing systems integrating with third-party providers (PayPal, Global Collect, etc.)
Built high-performance Java backend services using Spring, MySQL, and distributed system architecture
Improved system scalability, database performance, and reliability for high-traffic production environments

### Software Engineer Intern @ EMobile Network
Jan 2007 – Jan 2008 | San Jose, California
Worked as a software engineer intern at a startup in San Jose

Developed and maintained a web-based cloud application using Java, JSP, and Tomcat

Fixed bugs and improved system stability in early-stage production environments


## Education
### Master's degree in Artificial Intelligence
San José State University

### Bachelor's degree in Computer Science and Mathematics
San José State University


## Contact & Social
- LinkedIn: https://linkedin.com/in/minsu-sohn-4019786b

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Source: https://flows.cv/minsusohn
JSON Resume: https://flows.cv/minsusohn/resume.json
Last updated: 2026-04-11