Senior Backend Engineer | Japan Jobs | Fidel Consulting KK

Senior Backend Engineer

Job Id : 9264
Posted : 2025-07-26
Industry : Telecommunications
Employment Type : Full Time, Permanent
Required Skills : DevOps , Computer Science, Docker, Kubernetes, CI/CD pipelines.
City : Tokyo
State : Tokyo
Country : Japan
Annual Salary : ¥6,000,000 ~ ¥8,000,000

Job Description

Appealing Points:

  • Lead cutting-edge backend development on large-scale, real-time systems using modern tools like Java 17+, ELK, Kafka, Docker, and Kubernetes, with a focus on performance, scalability, and system reliability.
  • Work in a global, collaborative environment with opportunities to take ownership of complex features from design to deployment, while leveraging DevOps practices, CI/CD pipelines, and cloud-based infrastructure (AWS).
  • Drive impactful analytics and reporting solutions, contributing to both the backend architecture and business insights, while engaging with international teams and stakeholders in English and Japanese.

Annual salary: 6 million and above

Qualification:

  • B.S. or equivalent in Computer Science with at least 6+ years of proven hands-on core backend SW engineering expertise in Java (v17+).
  • Proven experience in developing and optimizing data pipelines for ingesting, processing, and analyzing large data sets while using modern data tools and ensuring data integrity, consistency, and quality across all systems.
  • Experience in developing and maintaining reporting systems that provide actionable insights to stakeholders while collaborating with product & business team to enhance data reporting capabilities.
  • Experience with real-time data processing and stream processing frameworks. Database experience in ELK/Kafka.
  • Experience in a team lead role - an advantage.
  • Experience with containerization and orchestration tools (e.g., Docker, Kubernetes). Cloud base deployments expertise with experience in continuous integration/continuous delivery systems. Jenkins/Docker/Kubernetes, AWS - an advantage
  • Well versed with DevOps practices and CI/CD pipelines.
  • Strong understanding and experience in low level networking & inter-networking. Experience in SaaS, API based, communication systems.
  • Extensive knowledge and experience in Linux
  • Experience with developing high profile production systems with 24/7 availability, low-latency and highly available redundant solutions.
  • Ability to present concepts and architectures effectively to the team.
  • Problem solver and high troubleshooting skills
  • Ability to work autonomously and collaborate as a team player.
  • Ability to work as a member of a big remote team spread across the globe.
  • Strong communication and leadership skills, with proactive communication internally and externally to address any blockers.
  • Ability to take full responsibility for a task or feature, delivering it independently with high quality from start to finish
  • Experience in writing unit tests and integration tests on a large scale
  • Experience in conducting large-scale refactors on a fast-moving product.
  • Understanding accessibility and security compliance.
  • Implement analytics solutions to monitor system performance, user behavior, and key metrics.
  • Experience in building reporting and analytics as part of product feature.

Language Skills: Conversational level Japanese (JLPT N3) and Business level English

Company Description:

The largest eCommerce company in Japan, and the third-largest e-commerce marketplace company worldwide.

The organization provides a variety of consumer and business-focused services including e-commerce, e-reading, travel, banking, securities, credit card, e-money, portal and media, online marketing, and professional sports

[Measures against passive smoking]

No smoking indoors allowed

Designated smoking area


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