Back to search

Backend Java Engineer for High‑Scale E‑Commerce Platforms

Tokyo 23 Wards Temporary ¥6,000,000 - ¥7,000,000 per year Foreign Multinational View Job Description
This role focuses on building and evolving backend microservices for large‑scale e‑commerce platforms. You will take ownership of core systems that support customer rewards, order delivery logic, and high‑volume transactions.
  • Build high‑traffic systems used by millions
  • Own backend services with real business impact

About Our Client

Our client is a large, technology‑driven organization operating major e‑commerce platforms with significant traffic and data volumes. The environment is international, engineering‑led, and focused on building reliable, high‑performance systems that directly support business growth.

Job Description

  • Design, develop, and maintain backend microservices using Java (JDK11+)
  • Build scalable, high‑performance systems handling large volumes of traffic and data
  • Contribute new features and services that enhance customer value
  • Collaborate closely with platform and framework teams to improve overall engineering productivity
  • Promote a culture of quality, innovation, and customer‑focused development
  • Take strong ownership of the systems you build, from design through operation



The Successful Applicant

  • 5+ years of hands‑on experience with Java (JDK11 or above)
  • Experience with modern Java frameworks (e.g., Spring or micro‑frameworks)
  • Experience with both relational and NoSQL databases (e.g., Couchbase, CockroachDB, TiDB, or similar)
  • Practical experience with event‑driven architectures (Kafka, Confluent Kafka, Apache Pulsar, etc.)
  • Experience using containers and cloud platforms
  • Working knowledge of CI/CD pipelines and DevOps practices
  • Experience using source control systems, ideally Git

Nice to have:

  • Experience working in Agile/Scrum development environments
  • Strong understanding of SDLC best practices, including code reviews and testing
  • Experience designing high‑availability architectures
  • Knowledge of APM tools and performance tuning
  • Familiarity with reactive programming and gRPC
  • Administration experience with NoSQL databases or message brokers

What's on Offer

  • Exposure to large‑scale, high‑traffic e‑commerce systems
  • English‑speaking environment with no Japanese language requirement
  • Professional, collaborative engineering culture



Contact
Serena Wu
Quote job ref
JN-052026-7024175
Phone number
+81 3 6627 6137

Job summary

Function
IT
Specialisation
Programming / Development
Specialisation
Technology & Telecoms
Location
Tokyo 23 Wards
Job Type
Temporary
Consultant name
Serena Wu
Consultant phone
+81 3 6627 6137
Job Reference
JN-052026-7024175
Company Type
Foreign Multinational

Diversity & Inclusion at Michael Page

We don't just accept difference - we celebrate it. We encourage applicants from all backgrounds to apply for this role and are committed to building inclusive, diverse workplaces where everyone can thrive. If you require any support or reasonable adjustments during the recruitment process, please let us know.