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Companies Using Ruby in Japan

132 companies are hiring Ruby talent in Japan, with 479 open roles.

132
Companies
479
Open Roles

Ruby is a dynamic programming language widely used to build web applications, APIs, and internal tooling — most commonly through the Rails framework. When Japanese companies post Ruby roles, they're typically mid-build on a product that requires backend infrastructure, database management, and deployment tooling. That means adjacent spend on cloud hosting, monitoring, testing, and CI/CD pipelines is either active or imminent.

Buying Signal

A company hiring Ruby engineers in Japan is actively building or scaling a web product — not maintaining legacy code. This is a buying signal for vendors selling developer tooling, cloud infrastructure, QA automation platforms, and application performance monitoring. DevOps vendors and SaaS testing platforms like those targeting Software Engineers in Test should be prospecting these accounts immediately.

Top Companies50 shown

CompanyIndustryHQ LocationSizeJobsLast SeenLinks
CrowdStrike
crowdstrike.com
 Computer and Network Security United States 5,001+ 5 1mo ago
Snowflake
snowflake.com
 Software Development Sitka, United States 5,001+ 4 2mo ago
Timee, Inc.
timee.co.jp
 IT Services and IT Consulting Minato, Japan 1,001–5,000 72 2mo ago
（
（株）スマレジ
 Software Development Shibuya, Japan 10,001–5,000 49 6w ago
freee.k.k.
freee.co.jp
 IT Services and IT Consulting Shinagawa, Japan 1,001–5,000 11 2mo ago
MIXI, Inc
mixi.co.jp
 Software Development Shibuya, Japan 1,001–5,000 11 2mo ago
株式会社GA technologies / GA technologies Co., Ltd.
ga-tech.co.jp
 IT Services and IT Consulting Minato, Japan 1,001–5,000 10 1mo ago
Link and Motivation Inc
lmi.ne.jp
 Business Consulting and Services 1,001–5,000 6 2mo ago
GLOBIS Corporation
globis.com
 Education Chiyoda, Japan 1,001–5,000 4 2mo ago
Money Forward, Inc.
moneyforward.com
 Technology, Information and Internet Minato, Japan 1,001–5,000 4 7w ago
CyberAgent, Inc.
cyberagent.co.jp
 Technology, Information and Internet Shibuya, Japan 1,001–5,000 3 7mo ago
DIP Corporation (ディップ株式会社)
dip-net.co.jp
 Facilities Services Minato, Japan 1,001–5,000 3 7w ago
グローリー（株）
glory.co.jp
 Machinery Manufacturing Himeji, Japan 1,001–5,000 2 2mo ago
giftee
giftee.co.jp
 Software Development Chiyoda, Japan 501–1,000 16 2mo ago
Treasure Data
treasuredata.com
 Software Development Mountain View, United States 501–1,000 10 7w ago
RAKSUL
raksul.com
 Technology, Information and Internet Chiyoda, Japan 501–1,000 7 2mo ago
Computer Futures
computerfutures.com
 IT Services and IT Consulting Greater London, United Kingdom 501–1,000 3 2mo ago
株式会社LIFULL
lifull.com
 IT Services and IT Consulting 501–1,000 3 2mo ago
ＡＲアドバンストテクノロジ株式会社
ari-jp.com
 IT Services and IT Consulting Shibuya, Japan 501–1,000 2 5mo ago
Illumio
illumio.com
 Computer and Network Security Sunnyvale, United States 501–1,000 2 1mo ago
サークレイス株式会社 (circlace Inc.)
circlace.com
 IT Services and IT Consulting Chuo, Japan 201–500 13 2mo ago
株式会社うるる
uluru.biz
 Information Technology & Services Chuo, Japan 201–500 5 2mo ago
株式会社ハンモック
hammock.jp
 Information Technology & Services Shinjuku, Japan 201–500 3 2mo ago
LIG inc.
liginc.co.jp
 IT Services and IT Consulting Taito, Japan 201–500 3 2mo ago
TableCheck
tablecheck.com
 Software Development Chuo, Japan 201–500 3 2mo ago
Tebiki, Inc. ｜Tebiki株式会社
tebiki.co.jp
 IT Services and IT Consulting Shinjuku, Japan 51–200 23 2mo ago
株式会社ココナラ
coconala.co.jp
 Information Technology & Services 51–200 9 2mo ago
株式会社ギフトパッド
giftpad.co.jp
 Information Services 51–200 9 2mo ago
LRM株式会社
lrm.jp
 IT Services and IT Consulting Kobe, Japan 51–200 8 1mo ago
リビン・テクノロジーズ株式会社
lvn.co.jp
 IT Services and IT Consulting 51–200 5 2mo ago
Autify
autify.com
 Software Development San Francisco, United States 51–200 4 1mo ago
Blue innovation Co., Ltd.
blue-i.co.jp
 Automation Machinery Manufacturing Bunkyō, Japan 51–200 4 2mo ago
エムディー株式会社
emdi.co.jp
 Business Consulting and Services Minato, Japan 51–200 4 2mo ago
Stockmark Inc.
stockmark.co.jp
 IT Services and IT Consulting Minato, Japan 51–200 3 2mo ago
Ekohe
ekohe.com
 IT System Custom Software Development Paris, France 51–200 2 3mo ago
Fenrir Inc.
fenrir-inc.com
 Software Development 51–200 2 7w ago
MicroWorld
microworld.co.jp
 IT Services and IT Consulting Minato, Japan 51–200 2 2mo ago
株式会社ゴーガ
goga.co.jp
 Information Technology & Services Shibuya, Japan 11–50 18 2mo ago
株式会社イズム
ism-sol.jp
 Information Technology & Services 11–50 11 2mo ago
KAUCHE, Inc.
kauche.com
 Online and Mail Order Retail Japan 11–50 6 2mo ago
Vision Base株式会社
visionbase.co.jp
 IT Services and IT Consulting Chiyoda, Japan 11–50 5 2mo ago
株式会社アーキベース
archibase.co.jp
 IT Services and IT Consulting Chiyoda, Japan 11–50 4 2mo ago
SearchApi
searchapi.io
 IT System Data Services New York, United States 2–10 3 3mo ago
株式会社システムアイ
system-i.co.jp
 IT Services and IT Consulting Osaka, Japan 2–10 3 3mo ago
FutureRays株式会社
futurerays.biz
 6 2mo ago
Honda
global.honda
 Motor Vehicle Manufacturing Minato, Japan 10,001+ 5 11mo ago
Amdocs
amdocs.com
 Software Development Chesterfield, United States 10,001+ 2 7w ago
Hitachi
hitachi.com
 IT Services and IT Consulting Japan 10,001+ 2 16mo ago
Keywords Studios
keywordsstudios.com
 Computer Games Dublin, Ireland 10,001+ 2 2mo ago
株式会社ライトカフェクリエイション
lightcafe-cr.co.jp
 Shibuya, Japan 2 7w ago

132 companies use Ruby. Want the full list?

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Companies with open Ruby roles in Japan. Company HQ may be in a different location.

▲Market Signal

128 companies posting 487 open Ruby roles in Japan indicates this isn't a niche signal — that's an average of nearly four open roles per company, suggesting organizations are scaling engineering teams, not making isolated hires. The concentration in IT Services and Software Development confirms that product-building activity is driving demand.

⦿Stack Intelligence

Companies hiring for Ruby almost always pair it with Rails, Postgres, Redis, and Heroku — a stack that signals a mature but fast-moving product team prioritizing developer velocity over infrastructure complexity. This combination tells you the company likely needs managed database services, caching solutions, and platform reliability tooling. Vendors in cloud infrastructure, observability, and data management have a highly targetable cluster here.

Ruby Hiring Landscape

Where and how companies hire Ruby talent

By Industry

IT Services and IT Consulting
35
Software Development
24
Information Technology & Services
7
Technology, Information and Internet
15
Business Consulting and Services
6
5
Information Services
3
Facilities Services
5

Top Roles

フルリモート 　QAエンジニア8フルリモート 　テスト設計エンジニア　SET（Software Engineer in Test）8フルリモート 　プロダクトマネジャー8フルリモート　PM　GOエンジニア8フルリモート　PM　rubyエンジニア8フルリモート　rubyエンジニア8フルリモート　シニアMLops8フルリモート　データサイエンティスト8【バックエンドエンジニア】4Analyst I, Falcon Complete (Japanese Speaking and Non-Japanese Speaking)3【東京：リモート】エンジニアリングマネージャー3【東京：リモート】サーバーサイドエンジニア3

Related Technologies

Ruby on RailsPostgreSQLRedisHeroku

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Frequently Asked Questions

What is Ruby?

Ruby is a general-purpose language most associated with rapid web application development, particularly through the Ruby on Rails framework. Businesses use it to build customer-facing products, internal platforms, and API-driven services. When a company is hiring Ruby talent, they're investing in building or scaling a live product.

Why should sales teams track Ruby hiring?

Ruby hiring signals active product development, which correlates directly with budget allocation for infrastructure, security, and developer tooling. A sales rep at a cloud monitoring or QA automation company can use this data to identify accounts mid-build — the highest-intent moment to engage.

Who should be selling to companies that use Ruby?

Vendors best positioned to sell into Ruby-hiring companies include cloud hosting and PaaS providers, database management platforms, CI/CD and DevOps tooling vendors, and QA automation or testing infrastructure companies.