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Hiring in Japan is as much a scheduling question as a sourcing one. At UTC+9, that means a short morning or evening overlap with Western Europe and little natural overlap with the US West Coast. That decides whether you are hiring someone who joins your stand-up or someone who hands off to it.
Developers in Japan cluster in Tokyo, USA, Osaka and Kyoto. City counts cover every indexed developer there, not only the ones using Haskell, so treat them as where the country's engineering population sits rather than a count for this skill.
Haskell developers in Japan most often pair it with JavaScript (87.2%), Python (82.6%) and HTML (67.9%).
Developer cities in Japan
All indexed developers per city, across every skill.
- Tokyo7,860
- USA4,459
- Osaka527
- Kyoto353
- Tokyo326
- Yokohama305
- Fukuoka304
- Japan262
- Chiba174
- Kanagawa170
Counts are developers in the indexed profile set.
Other skills hired in Japan
Each links to the same country breakdown for that technology.
- JavaScript10,159
- Python9,359
- HTML8,568
- TypeScript6,300
- Bash / Shell5,201
- Java5,083
- C++4,854
- CSS4,688
- Ruby4,444
- C4,135
- Go3,876
- Jupyter3,116
- PHP2,998
- C#2,486
Counts are developers in the indexed profile set.
What Haskell developers in Japan also use
Share of this group who also work with each technology.
- JavaScript475 · 87.2%
- Python450 · 82.6%
- HTML370 · 67.9%
- C360 · 66.1%
- Bash / Shell350 · 64.2%
- C++335 · 61.5%
- Ruby330 · 60.6%
- Go325 · 59.6%
- TypeScript285 · 52.3%
- Java270 · 49.5%
- Rust245 · 45%
- CSS215 · 39.4%
Counts are developers in the indexed profile set.
What Haskell developers in Japan look like
Measured across the profiles in this group, not self-reported.
- Median public contributions, last 12 months
- 484
- Median public repositories
- 73
- Median followers
- 36
- Have a linked LinkedIn profile
- 11%
- Flagged as open to work on GitHub
- 35.8%
Years of experience
- 0–2 years1%
- 3–5 years2%
- 6–9 years12%
- 10+ years85%
Shares of the profiles in this group where experience could be derived.
Sample profiles from Japan
Real indexed developers, reduced to ranges and derived labels so no individual is identifiable.
- Contributions / year
- 3,500–5,000
- Public repositories
- 150–250
- Followers
- 100–250
- Contributions / year
- 2,000–3,500
- Public repositories
- 35–50
- Followers
- 100–250
- Contributions / year
- 500–1,000
- Public repositories
- 20–35
- Followers
- 10–25
- Contributions / year
- 500–1,000
- Public repositories
- 100–150
- Followers
- 100–250
- Contributions / year
- 2,000–3,500
- Public repositories
- 150–250
- Followers
- 1,000–2,500
- Contributions / year
- 2,000–3,500
- Public repositories
- 50–75
- 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 Haskell developers are there in Japan?
478 developers based in Japan show Haskell in their public GitHub work, which is 2% of all 23,406 Haskell developers in the index.
Which cities in Japan have the most developers?
Tokyo (7,860), USA (4,459), Osaka (527), Kyoto (353) and Tokyo (326). These are counts of all indexed developers in each city.
Do working hours in Japan overlap with my team?
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 Haskell developers in Japan?
The median developer in this group made 484 public contributions in the last year across 73 public repositories, with a median of 36 followers.
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