Changseop Oh
Senior Software Engineer at Leidos
Honolulu, Hawaii, United States
Summary
👤
Senior🎓
Top SchoolChangseop Oh is a Senior Software Engineer with 10 years of experience building full-stack and mobile-first applications, currently based in Honolulu and working at Leidos. He brings deep hands-on expertise in TypeScript/JavaScript ecosystems—React, React Native, Node/Nest.js—and has repeatedly improved performance and reliability, for example making a shared mobile media client five times faster and implementing robust offline modes. His background spans enterprise Java/Oracle systems to modern cloud-native stacks (AWS, SQS, Lambda, Hasura), reflecting an ability to bridge legacy and cutting-edge environments. A self-taught programmer who won regional coding competitions in high school and served as a Marine signal corpsman, he combines disciplined teamwork with curiosity-driven problem solving and a track record of shipping production systems across international teams.
10 years of coding experience
6 years of employment as a software developer
Bachelor of Engineering - BE, Computer Science and Engineering, 4.16/4.50 (3.71/4.0), Bachelor of Engineering - BE, Computer Science and Engineering, 4.16/4.50 (3.71/4.0) at Incheon National University
Japanese, English, Korean
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (14)
payment-processing4
payment4
react3
nodejs3
react-carousel3
dependency-injection2
react-native-swiper2
nest2
typescript2
nestjs2
injectable2
stripe2
mongodb1
react-swiper1
Programming languages (2)
Github contributions (5)
ChangSeopOh/portfolio
Jun 2019 - Jan 2021
Contributions:21 commits, 20 pushes, 1 branch in 1 year 7 months
ChangSeopOh/Seattle-Tours
Jun 2019 - Jun 2019
Contributions:9 commits, 5 pushes, 1 branch in 7 days
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