Last updated: 2025-05-08

10 Java Backend Development jobs in Tokyo.

Hiring now: Tech Leader Web Applicati @ Rakuten, Sr Backend Engr @ Rakuten Sy, Java Spring Boot Microser @ Rakuten Mo, Engr Warehouse Gateway De @ Rakuten, Ads Prod Backend Dev @ Smartnews.Explore more at jobswithgpt.com. at kaamvaam.com

🔥 Skills

Java (9) Docker (4) Kubernetes (4) Spring Boot (3) Kafka (3) logistics (3) Spring (2) React (2) Microservices (2) Jenkins (2)

📍 Locations

Tokyo (10)
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Rakuten Group

Tech Leader - Web Application Development Tokyo
Skills & Focus: Java, Spring, JavaScript, React, Vue, Linux, Docker, Kubernetes, RDB, agile
About the Company: Rakuten Ichiba, operated by the Rakuten Group, has grown as a mall-type business and is now expanding its B2C business.
Experience: Over 5 years of experience in business system development.
Type: Full-time

Rakuten Symphony

Senior Backend Engineer Tokyo
Skills & Focus: Backend Engineer, CPaaS, Java, Agile/Scrum, DevOps, Microservices, Containerization, AWS, Jenkins, Cloud Deployments
About the Company: Rakuten Symphony CPaaS platform provides communication API’s to global and domestic enterprises in Japan over various channels such as SMS, Voice, Email & RCS.…
Experience: 6+ years of proven hands-on core backend SW engineering expertise in Java (v17+)
Type: Full-time

Rakuten Mobile

Java, Spring Boot, Microservices Professional Tokyo
Skills & Focus: Java, Spring Boot, Microservices, NoSQL, Couchbase, Kafka, Cloud Platform, API, Design Patterns, Microservice Architecture
Experience: 8-10 years
BSS Backend Developer Tokyo
Skills & Focus: microservices, APIs, Java, Agile, Spring Boot, Docker, Kubernetes, observability, REST, telecom
Experience: 8+ years of total experience in IT software development/design architecture

Rakuten

Engineer, Warehouse Gateway Development Tokyo
Skills & Focus: logistics, e-commerce, API, system integration, development, Java, Spring Boot, WMS, OMS, performance testing
About the Company: Rakuten is a leading e-commerce company that provides a variety of services including online shopping and delivery.
Experience: 5+ years of development experience using Java 11, 2+ years of development experience with Spring Boot
Type: Full-time
Application Engineering Leader Tokyo
Skills & Focus: Java, Spring, OracleDB, Redis, Kubernetes, Docker, Jenkins, Gradle, Web API, MicroService
About the Company: Rakuten is an EC company that owns Japan's largest platform called Rakuten Ichiba.
Experience: 5+ years
Type: Full-time

Rakuten Mobile

Golang and C++ Microservices Developer Tokyo
Skills & Focus: Golang, C++, microservices, REST, Kafka, Docker, Kubernetes, gRPC, software development life cycle, cloud platform
Experience: 8-10 years

Rakuten

Warehouse Management System Engineer Tokyo
Skills & Focus: warehouse management system, WMS, Java, Spring Framework, REST APIs, CI/CD, logistics, security-conscious coding, Oracle, cloud native environment
About the Company: Rakuten operates various e-commerce services including Rakuten Ichiba, Rakuten Books, and Rakuten Fashion, and is responsible for logistics and warehouse manag…
Experience: 5+ years of development experience with Java; 2+ years of development experience with the Spring Framework
Type: Full-time
Transportation Management System Engineer Tokyo
Skills & Focus: back-end development, Java, Spring Framework, front-end development, React, REST APIs, system operation, security-conscious coding, logistics, E-Commerce
About the Company: Rakuten is a global leader in Internet services that empower individuals, businesses, and society through innovation.
Experience: 5+ years of back-end development experience; 2+ years of front-end development experience
Type: Full-time

Smartnews

Ads Product Backend Developer Tokyo
Skills & Focus: backend systems, high traffic, ads delivery, Kafka, Redis, SQL, NoSQL, Java, microservice architecture, data processing
About the Company: SmartNews is a leading global information and news discovery company dedicated to delivering quality information to the people who need it. Thanks to our uniqu…
Experience: 3+ years experience in developing backend systems for high traffic web services
Type: Full-time
Benefits: All healthcare and social insurance required by the Japanese labor law, plus annual health check; Visa sponsorship and …