Sungjin Kim
Back-end Developer at LAIVDATA
South Korea
Summary
👤
Senior🎓
Top SchoolSungjin Kim is a back-end developer with 10 years of experience building scalable, production-first services across Python/Django and TypeScript/NestJS stacks. He has driven architecture and deployment work—from Domain-Driven refactors and NestJS+Prisma APIs to AWS and Docker CI/CD pipelines—and implemented real-time features like socket-based chat with Redis broadcasting. His background in crypto exchanges and Solidity demos pairs with AML and wallet-balance tooling, while recent work focuses on improving LLM response accuracy using LangGraph and domain modeling. Multilingual (Korean, English, Chinese) and business-educated, he approaches engineering as a communication discipline, treating programming languages as an extra human language. He routinely optimizes database performance (partitioning, schema design) and converts messy real-world data (complex Google Sheets) into robust relational models. Ambitious about Rust and Web3, he blends product-minded pragmatism with a curiosity for emerging blockchain and low-level tooling.
10 years of coding experience
5 years of employment as a software developer
Associate's degree, Business Administration, 3.85, Associate's degree, Business Administration, 3.85 at MonroeBachelor of Business Administration - BBA, Business Management, Bachelor of Business Administration - BBA, Business Management at Stony Brook University
English, Chinese, Korean
Github Skills (13)
objective-c10
xcode10
swift10
macos10
ios10
cocoapods10
carthage9
jpa6
spring-boot6
react6
java6
spring5
javascript5
Programming languages (4)
Github contributions (5)
napasun/home
Jun 2018 - Apr 2019
Contributions:172 pushes, 1 branch in 9 months
HyeongJinK/HyeongJinK.github.io
Apr 2020 - Nov 2022
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Contributions:122 commits, 20 PRs, 106 pushes in 2 years 7 months
react
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