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Jonghak Seo

About

Jonghak Seo's photo

Introduction

Hi, I'm Jonghak Seo (Jong).

I'm a product engineer interested in solving practical business problems with AI and web technologies.

At Creatrip, I started as a frontend engineer and have gradually moved into leadership and system design work, collaborating with both technical and non-technical teams.

I enjoy turning ambiguous workflow issues into concrete tools, then iterating with user feedback until they become part of daily work.

Experience

  • Tech Lead at Creatrip (2025.05 ~ Present)

    Leading product and engineering initiatives around internal AI workflows, while supporting cross-functional adoption.

  • Frontend Lead at Creatrip (2023.12 ~ 2025.05)

    Worked on frontend architecture, team productivity, performance, and developer experience improvements.

  • Frontend Engineer at Creatrip (2021.12 ~ 2023.12)

    Built and improved user-facing reservation/purchase flows and internal admin experiences.

  • Chrome Extension Consultant (Part-time) at Casemark AI (2023.05 ~ 2023.11)

    Contributed to browser-extension product development and technical direction.

  • Frontend Engineer at Slogup (2019.09 ~ 2021.12)

    Developed web products and admin pages, including projects for enterprise clients.

Selected Work

  • Internal AI Workspace (Creatrip)

    Designed and built an internal AI workspace used across teams, integrating daily tools like Slack, Gmail, Calendar, GA4, Jira, Notion, and more through natural language workflows.

  • AI Code Review Workflow

    Experimented with RAG-based review context and helped evolve team review workflows with AI support.

  • Product & Performance Engineering

    Worked on payment reliability and frontend performance improvements, including Core Web Vitals optimization and large-scale state/styling migrations.

Open Source & Side Projects

Links