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.
[Measures against passive smoking]
No smoking indoors allowed
Designated smoking area