Open to opportunities

Insung Han


Software Engineer offering 15+ years experience in java and spring framework

United States

What I'm looking for

I work primarily in Atlanta, but I'm looking for a remote job where I can occasionally work in Seoul.

I currently work as a software engineer from home (Atlanta).

  • J2EE Software Engineer offering 15+ years experience in the IT industry with a focus on design and development

  • Strong working experience in Java and spring framework

  • Extensive knowledge of mobile commerce and payment such as credit card, apple pay, SVA card, coupon, loyalty, membership service



Senior Engineer Full Stack

Jan 2020 - Present (4 years 4 months)

Design and develop Macys marketing services
- Migrate monolithic services (spring, Jboss) to microservices (spring boot, GCP)
- Java, Spring boot, RESTful API, SOAP, Git(gitlab), Maven, Jboss, DB2, TIBCO EMS,
Google Could with Spanner, Pub/Sub, BigQuery
Design and develop customer mobile application for Tractor Supply Company
- React Native, Redux-saga, RESTful API, VS Code, Git(Bitbucket)


Sr. Software Engineer


Aug 2012 - Dec 2019 (7 years 4 months)

• Designed the architecture of the mobile commerce solution
• Developed web server application with Spring Boot/Spring MVC/RESTful API/Microservice/Oracle/
• Coordinated with QA testers for end-to-end unit testing and post-production testing
• Analyzed and solved problems of released products (Dunkin Donuts, Vodafone, Deutsche Telecom)


Sr. Software Engineer


May 2009 - Jul 2012 (3 years 2 months)

• Designed and developed Mobile Commerce Platform
- Mobile payment and marketing
• Launched Citibank APAC Mobile Banking System
- Support multiple devices and browsers
- Fully commercialized in 12 countries : Hong Kong, Singapore, Taiwan, Australia, and so on.


Lead of backend development team


Apr 2003 - Jan 2009 (5 years 9 months)

• Released Korea Telecom VoIP Phone contents service : weather, news
• Released Cyworld (social media) mobile service
• Developed and operated SK Telecom mobile contents service


Open to opportunities


United States

Authorized to work in

Salary expectations

150k-300k USD

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