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Companies Using Java in Japan

323 companies are hiring Java talent in Japan, with 1,268 open roles.

323
Companies
1,268
Open Roles

Java is a foundational enterprise programming language powering backend systems, financial platforms, and large-scale distributed applications. When companies in Japan post Java roles, they're typically mid-build or mid-migration on core infrastructure — not maintaining legacy code. These teams are actively buying cloud services, API management tools, DevOps platforms, and application security solutions to support their builds.

Buying Signal

A Japanese company hiring Java developers is likely scaling a backend system, migrating off a monolith, or building out integrations — all of which require adjacent purchases. Think middleware, CI/CD tooling, monitoring platforms, and managed cloud services. DevOps vendors, cloud infrastructure providers, and API platform reps should be prioritizing these accounts in their outbound.

Top Companies50 shown

CompanyIndustryHQ LocationSizeJobsLast SeenLinks
A
Accenture Japan
 Business Consulting and Services Minato, Japan 10,001+ 213 5w ago
SCSK Corporation
scsk.jp
 IT Services and IT Consulting Japan 5,001+ 56 2mo ago
Databricks
databricks.com
 Software Development San Francisco, United States 5,001+ 7 7w ago
AXA Japan
axa-holdings.co.jp
 Insurance Japan 5,001+ 6 6w ago
Hitachi Digital Services
hitachids.com
 IT Services and IT Consulting Santa Clara, United States 5,001+ 6 6w ago
Veeva Systems
veeva.com
 Software Development Pleasanton, United States 5,001+ 6 3mo ago
BIPROGY Inc.
biprogy.com
 IT Services and IT Consulting Koto, Japan 1,001–5,000 13 4mo ago
CyberAgent, Inc.
cyberagent.co.jp
 Technology, Information and Internet Shibuya, Japan 1,001–5,000 12 5mo ago
アイフル株式会社
aiful.co.jp
 Banking Kyoto, Japan 1,001–5,000 10 7w ago
PayPay Corporation
paypay.ne.jp
 Financial Services Shinjuku, Japan 1,001–5,000 8 6w ago
株式会社ベネフィット・ワン
benefit-one.co.jp
 Business Content Shinjuku, Japan 1,001–5,000 6 2mo ago
ココネ株式会社
cocone.co.jp
 Technology, Information and Internet Japan 1,001–5,000 6 7w ago
Topcon Corporation
topcon.co.jp
 Medical Device Itabashi, Japan 1,001–5,000 5 7w 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 14 7w ago
Cube System Inc (2335)
cubesystem.co.jp
 Information Technology & Services Shinagawa, Japan 501–1,000 14 7w ago
AMBL株式会社（AMBL Inc.）
ambl.co.jp
 IT Services and IT Consulting Shinagawa, Japan 501–1,000 13 7w ago
フューチャー・アンティークス株式会社
futureantiques.co.jp
 Information Services Shibuya, Japan 501–1,000 9 1mo ago
Computer Futures
computerfutures.com
 IT Services and IT Consulting Greater London, United Kingdom 501–1,000 7 7w ago
IMAGEMAGIC Co., LTD. / 株式会社イメージ・マジック
imagemagic.jp
 Technology, Information and Internet Bunkyō, Japan 501–1,000 7 7w ago
Yayoi Co., Ltd.
yayoi-kk.co.jp
 Information Services Chiyoda, Japan 501–1,000 7 7w ago
Treasure Data
treasuredata.com
 Software Development Mountain View, United States 501–1,000 6 6w ago
サークレイス株式会社 (circlace Inc.)
circlace.com
 IT Services and IT Consulting Chuo, Japan 201–500 16 7w ago
KINTO Technologies Corporation
kinto-technologies.com
 Software Development Chuo, Japan 201–500 13 7w ago
株式会社コアコンセプト・テクノロジー
cct-inc.co.jp
 IT Services and IT Consulting Toshima, Japan 201–500 7 7w ago
Zeal
zdh.co.jp
 IT Services and IT Consulting Shinagawa, Japan 201–500 7 7w ago
Demae-can
demae-can.com
 Technology, Information and Internet Shibuya, Japan 201–500 6 3mo ago
株式会社ボールド
bold.ne.jp
 IT Services and IT Consulting 51–200 17 5w ago
株式会社ギフトパッド
giftpad.co.jp
 Information Services 51–200 9 7w ago
Fenrir Inc.
fenrir-inc.com
 Software Development 51–200 6 6w ago
Airitech Inc.
airitech.co.jp
 IT Services and IT Consulting Japan 51–200 5 6w ago
FLYWHEEL Inc.
flywheel.jp
 Software Development Chiyoda, Japan 51–200 5 2mo ago
日本ウェブサービス（株）
jpn-web.co.jp
 Software Development Osaka, Japan 51–200 5 5w ago
株式会社ゴーガ
goga.co.jp
 Information Technology & Services Shibuya, Japan 11–50 18 7w ago
株式会社イズム
ism-sol.jp
 Information Technology & Services 11–50 14 7w ago
KAUCHE, Inc.
kauche.com
 Online and Mail Order Retail Japan 11–50 6 2mo ago
grasys Inc.
grasys.io
 Information Technology & Services Japan 11–50 5 7w ago
Rakuten
rakuten.com
 Software Development Setagaya, Japan 10,001+ 73 6w ago
Hitachi
hitachi.com
 IT Services and IT Consulting Japan 10,001+ 43 2mo ago
Honda
global.honda
 Motor Vehicle Manufacturing Minato, Japan 10,001+ 32 7w ago
NEC Corporation
nec.com
 IT Services and IT Consulting Minato, Japan 10,001+ 23 6w ago
LY Corporation
lycorp.co.jp
 Software Development Chiyoda, Japan 10,001+ 22 6w ago
IBM
ibm.com
 IT Services and IT Consulting Armonk, United States 10,001+ 16 7w ago
ＳＯＭＰＯシステムズ（株）
sompo-sys.com
 Software Development Tachikawa, Japan 15 5w ago
Nissan Motor Corporation
nissan-global.com
 Motor Vehicle Manufacturing Yokohama, Japan 10,001+ 9 6w ago
transcosmos inc.
trans-cosmos.co.jp
 IT Services and IT Consulting Toshima, Japan 10,001+ 9 7w ago
Toyota Motor Corporation
global.toyota
 Motor Vehicle Manufacturing Toyota, Japan 10,001+ 8 6w ago
Hitachi High-Tech Corporation
hitachi-hightech.com
 Appliances, Electrical, and Electronics Manufacturing Minato, Japan 10,001+ 8 7w ago
AIG
aig.com
 Insurance New York, United States 10,001+ 6 6mo ago
FutureRays株式会社
futurerays.biz
 6 7w ago
Red Hat
redhat.com
 Software Development Raleigh, United States 10,001+ 5 7w ago

323 companies use Java. Want the full list?

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

▲Market Signal

With 331 companies across Japan posting over 1,300 Java roles, demand is concentrated and active — this isn't residual hiring. The volume suggests a broad wave of backend modernization across enterprise and mid-market firms, not isolated team growth.

⦿Stack Intelligence

Companies hiring for Java alongside Spring, Kotlin, and Kafka are operating mature, event-driven architectures — not greenfield projects. Spring signals structured enterprise Java; Kafka indicates real-time data pipelines; Kotlin suggests teams modernizing without a full rewrite. Vendors selling data infrastructure, stream processing, or developer tooling should treat this combination as a high-intent cluster.

Java Hiring Landscape

Where and how companies hire Java talent

By Industry

IT Services and IT Consulting
75
Software Development
74
Business Consulting and Services
13
Information Technology & Services
11
Technology, Information and Internet
22
Motor Vehicle Manufacturing
8
21
Information Services
10

Top Roles

Project Manager14Java 開発者8Software Engineer4Solution Architect4【京都】システムエンジニア／評価制度＆教育体制充実／プライム案件多数4【兵庫】インフラエンジニア／評価制度＆教育体制充実／プライム案件多数4開発エンジニア（PMへのキャリアアップも目指せる／残業10h程度）4開発エンジニア（個々のキャリアに沿った案件選定／マネジメント経験歓迎／残業10h程度）4Managed Services Consultant - Commercial3PM・開発リーダー（Web系・業務系システム開発）3Product Support Engineer3Web 開発者3

Related Technologies

SpringKotlinApache Kafka

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Frequently Asked Questions

What is Java?

Java is an enterprise-grade programming language used to build backend systems, financial applications, and large-scale APIs. It underpins critical infrastructure at banks, insurers, and IT services firms across Japan. When a company hires for it, they're actively building or scaling systems that require supporting tools and services.

Why should sales teams track Java hiring?

Java hiring signals active backend investment — which means budget is already allocated. Sales teams can use these signals to time outreach around real infrastructure decisions rather than cold prospecting. An SDR targeting cloud migration deals, for example, can filter for Japanese firms hiring Java engineers right now.

Who should be selling to companies that use Java?

Vendors best positioned here include cloud infrastructure providers, DevOps and CI/CD platforms, application performance monitoring tools, and API management or integration platform vendors.