Software Engineer | Japan Jobs | Fidel Consulting KK

Software Engineer

Job Id : 10048
Posted : 2026-02-10
Industry : Telecommunications
Employment Type : Full Time, Permanent
Required Skills : Python, Veritas, Kubernetes CSI, C++, CNI layer, Microsoft, NoSQL databases, operating systems
City : Tokyo
State : Tokyo
Country : Japan
Annual Salary : ¥6,000,000 ~ ¥9,000,000

Job Description

Appealing Points

  • Develop core components of enterprise-grade, high-performance storage systems. Work primarily in C/C++ to design and implement scalable storage and filesystem software across both kernel and user space, focusing on performance and reliability.
  • Deepen expertise in low-level system software engineering. Gain hands-on experience with multithreading, concurrency, data structures, performance benchmarking, and bottleneck analysis in enterprise-quality storage environments.
  • Collaborate with a world-class global storage engineering team. Join a 15-member international team across the US, India, and Japan, alongside engineers from leading storage and infrastructure companies, contributing end-to-end from design to validation.

Annual Salary: 6 Million and above

Responsibilities

  • Code in a variety of languages, primarily C/C++
  • Design, implement, and maintain high-performance, scalable storage systems
  • Be able to execute the project in its entirety from feature specification, design, implementation and validation with minimal supervision.
  • who be able to create documentation such as design documents, feature specification, and bug updates.
  • Being able to create a work plan with verifiable milestones and time estimates and deliver the project within estimates.
  • Constructively collaborate with the team during design/code reviews.
  • Interfacing with QA to come up with effective feature test plans.
  • Being able to benchmark performance and identify and troubleshoot bottlenecks.

Job Qualification

 

  • 15 Storage Personal team spread across the USA, India and Japan 
  • Team contains people from Veritas, NetApp, Violin Memory, Nutanix, Microsoft and VMware.
  • C/C++, Python and Git
  • 2+ years of system software development experience.
  • Strong C/C++ programming skills
  • Python, Shell scripting, Linux experience
  • 1+ years of experience developing Enterprise quality Filesystem/Storage software
  • Ability to program both in kernel and user space
  • Good understanding of multithreading and race conditions in concurrent systems.
  • Good understanding of on-disk and in-memory data structures and algorithms with emphasis on performance
  • Ability to work successfully as part of a team
  • Strong written and verbal communication skills
  • BS/MS/PhD in Computer Science/Engineering or equivalent work experience

Preferred Qualifications

  • Experience in design and development of hyperconverged/distributed storage systems
  • Experience in debugging and fixing data corruption issues
  • Experience implementing erasure coding for data protection

Languages Proficiency:  No JLPT Required and Business-level English. 

About Company 

The largest eCommerce company in Japan, and the third-largest eCommerce 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.  The company is expanding globally and currently has operations throughout Asia, Western Europe, and the Americas. 

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