About Me
Summary
Seung-Ju Oh | Software Engineer / Development Lead
Career: Jan 2019 -
Domains: Design, Web, App, CMS, API, DevOps
Core Tech
Next.js, React, TypeScript, React Native, Java, Kotlin, Spring Boot, NestJS, Express, PostgreSQL, MySQL, Redis, AWS, Kubernetes, Helm
Actbase LLC
Software Engineer · Senior Researcher / Team Lead (2 years) · Webmaster
Jan 2021 - Sep 2023
Naegong
Production Team · Staff
May 2019 - May 2020
Tium Communication Co., Ltd.
Design · Intern / Probation / Team Member
Jan 2019 - Apr 2019
A development lead who connects technology and designs direction
I began my career in web design with a visual design background, and now work across design and engineering. I have practical experience in frontend, backend, infrastructure, and cloud, and I previously led projects as a team lead. I think in terms of service outcomes, not isolated features.
I prioritize context before depth
I am less focused on mastering only one tool deeply from day one, and more focused on understanding how multiple technologies connect in a real service.
When I face a new technology, I build quickly first, make a structural hypothesis, and then validate it against docs and implementation details.
I treat technology as a tool
React, Next.js, Spring Boot, NestJS, Redis, AWS, and Kubernetes are not goals by themselves. I choose combinations based on product constraints and operating conditions.
I adjust depth intentionally
I design for system balance first, then dive deep where bottlenecks or failures actually require it. As a lead, choosing what to optimize, how far to implement, and when to refactor matters most.
In short, I am an engineer who can connect technologies into a working structure and still go deep when needed to deliver outcomes.