Junho Seo

Sample

Senior Engineering Manager at Gojek · Developer tools

Gojek
Seoul, South Korea · KST (UTC+9)
13+ years experience
Tsinghua University
English, Korean
Advising
Messaging unavailable

Overview

Senior Engineering Manager at Gojek, focused on developer tools. Led the migration of 17 services to LSP. Grew the developer experience team from 3 to 16 engineers. Before that: Canva and ByteDance.

Good reasons to reach out
  • Advice on developer tools
  • Questions about developer tools
  • Second opinions on TypeScript decisions
Please don't message about
  • Offshore staffing offers
  • SEO and link-building offers
  • Courses and coaching offers
Skills
VS Code extensionsanalyticscompilersTypeScriptLSPCLI design
AdvisingOpen to advising
closes in 2 months

Office hours for teams scaling past 50 engineers: developer tools and analytics

Topics
developer tools, compilers, LSP
Format
Async reviews
Terms
Equity
Capacity
One advisory role at a time
Best for
Engineers moving into leadership

18 years of developer tools. Prefer specific questions over coffee chats.

Seoul, South Koreacli designanalyticslsp
Open

Experience

  1. Senior Engineering Manager
    Jun 2023 - Present
    Gojek · 3 yr 4 mo · Full-time · Seoul, South Korea
    • Brought on-call pages for developer experience down from 23 a week to 4.
    • Shipped a rewrite that took build times from 37 minutes to under 3.
    • Mentored 8 engineers through their first promotion.
  2. Software Engineer
    Jan 2021 - Jun 2023
    Canva · 2 yr 5 mo · Full-time · Seoul, South Korea
    • Shipped a rewrite that took build times from 14 minutes to under 4.
    • Wrote the CLI design service that now handles 66 million requests a day.
  3. Staff Software Engineer
    Oct 2019 - Jan 2021
    ByteDance · 1 yr 3 mo · Full-time · Seoul, South Korea
    • Shipped 22 launches on the developer experience team without a rollback.
    • Grew the developer experience team from 4 to 15 engineers.
  4. Senior Software Engineer
    Jan 2017 - Oct 2019
    Maybank · 2 yr 9 mo · Full-time · Seoul, South Korea
    • Cut p99 latency on the developer experience services from 384ms to 105ms.
    • Grew the developer experience team from 3 to 21 engineers.
  5. Senior Software Engineer
    Jan 2014 - Jan 2017
    LINE · 3 yr · Full-time · Seoul, South Korea
    • Cut p99 latency on the developer experience services from 334ms to 98ms.
    • Led the migration of 45 services to analytics.

Projects

Write-up: developer tools in practice
2026

A long-form guide to developer tools for people starting out.

Open-source CLI design toolkit
2023

A small library for developer tools that 703 developers star on GitHub.

References

No references yet.

Education

  1. Tsinghua University
    BEng, Computer Engineering
    2004 - 2008

Details

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