At UTC+9, that means a short morning or evening overlap with Western Europe and little natural overlap with the US West Coast.
Seoul is the largest single concentration with 15,169 developers, followed by Seoul (808), Daejeon (604), Suwon (459) and Busan (446).
234 skills have enough developers in South Korea to break out separately, so you can go straight to the combination you are hiring for.
Most common skills in South Korea
Each links to the local breakdown for that technology.
- Python12,444
- JavaScript12,118
- HTML11,002
- Java9,381
- TypeScript8,416
- C++6,049
- Jupyter5,893
- CSS5,125
- C4,374
- Bash / Shell3,021
- Kotlin2,781
- C#2,272
- Go1,971
- Vue.js1,793
- Swift1,782
- Dart1,409
- Ruby1,315
- Sass / SCSS1,258
- PHP1,208
- Docker1,163
- Rust1,155
- React1,117
- CMake743
- Objective-C687
- Algorithms643
- Node.js601
- Markdown589
- Spring Boot569
- R559
Counts are developers in the indexed profile set.
Developer cities in South Korea
All indexed developers per city, across every skill.
- Seoul15,169
- Seoul808
- Daejeon604
- Suwon459
- Busan446
- Incheon408
- Daegu254
- South Korea249
- Korea233
- Seongnam137
Counts are developers in the indexed profile set.
What developers in South Korea look like
Measured across the profiles in this group, not self-reported.
- Median public contributions, last 12 months
- 44
- Median public repositories
- 20
- Median followers
- 11
- Have a linked LinkedIn profile
- 15.8%
- Flagged as open to work on GitHub
- 13.2%
Years of experience
- 0–2 years9%
- 3–5 years30%
- 6–9 years39%
- 10+ years23%
Shares of the profiles in this group where experience could be derived.
Sample profiles from South Korea
Real indexed developers, reduced to ranges and derived labels so no individual is identifiable.
- Contributions / year
- 0–50
- Public repositories
- 75–100
- Followers
- 100–250
- Contributions / year
- 0–50
- Public repositories
- 10–20
- Followers
- 0–10
- Contributions / year
- 0–50
- Public repositories
- 10–20
- Followers
- 50–100
- Contributions / year
- 1,000–2,000
- Public repositories
- 75–100
- Followers
- 50–100
- Contributions / year
- 1,000–2,000
- Public repositories
- 150–250
- Followers
- 500–1,000
- Contributions / year
- 0–50
- Public repositories
- 35–50
- Followers
- 10–25
Figures are shown as ranges and identifying details are removed. Full profiles, including GitHub handles and contact details, are available to signed-in users.
Frequently asked questions
How many developers are there in South Korea?
21,360 developers in South Korea are indexed on RealGreatDevs, 0.84% of the 2,554,463 profiles in the dataset. Location comes from the developer's own stated country on their public profile.
What technologies do developers in South Korea use most?
Python leads with 12,444 developers, followed by JavaScript (12,118), HTML (11,002), Java (9,381) and TypeScript (8,416).
What are the working-hour overlaps with South Korea?
At UTC+9, that means a short morning or evening overlap with Western Europe and little natural overlap with the US West Coast.
How active are developers in South Korea on GitHub?
The median developer there made 44 public contributions in the last year across 20 public repositories. 15.8% have a LinkedIn profile linked.
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