Rakuten
CNS-Object Software Engineer/Sr.Software Engineer, Cloud Product and Engineering Department (RS Cloud Div)
Tokyo, Japan
Get past the screening software and onto a recruiter's desk
hirly rewrites your resume for this job — matching the keywords and skills in the posting, moving your most relevant experience to the top, and writing a cover letter to fit. About 30 seconds.
- Keywords matched to this posting
- Fit score before you apply
- Cover letter included
Apply from your AI assistant
Connect hirly to Claude and ask it to apply to this job. hirly tailors your resume, fills the employer’s form and asks before sending. ChatGPT: manual setup today.
Some employer sites stop an application at a CAPTCHA or sign-in and hand it back with a link. Applying needs a paid plan. Works with any assistant that supports MCP.
hirly's read of this role
- Role family
- Engineering
- Seniority
- Senior
- Country
- JP
- Work mode
- On-site / unstated
- First seen by hirly
- 2 Sept 2026
Derived automatically from the posting. Upload your resume above to see how the role scores against it.
the posting
Job Description:
About Organization
Rakuten Symphony's Cloud Business Unit provides a highly scalable Kubernetes based platform that provides secure distributed storage, networking and compute capabilities for next generation applications.
Our business is diverse and growing across Telecommunication, Enterprise, and Retail Customers in the Far East, EMEA, and Americas. Our engineering team is diverse spanning US, Dubai, Singapore, Japan, and Korea. We are seeking to grow the team in Japan and are looking for systems engineers from within and outside Japan to take our platform to the next level.
To Develop world classes cloud native Storage
Why We Hire
Develop and support Cloud native storage for RMI
Job Duties
- - Code in a variety of languages, primarily C/C++
- - Design, implement, and maintain high-performance, scalable object storage systems.
- - Work with senior storage engineers to help them design, improve, and deploy technical and application solutions to meet business requirements
- - 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 project within estimates.
- - Constructively collaborate with the team during design/code reviews.
- - Interfacing with QA to come up with effective feature test plans.
- - Knowledge transfer to Support team on the new features developed.
- - Ensure that root-cause analysis is identified and knowledge gained is applied for process improvement.
- - Being able to benchmark performance and identify and troubleshoot bottlenecks.
Work Environment
15 Storage Personal team spread across USA, India and Japan
Team contains people from Veritas, Netapp, Violin memory, Nutanix, Microsoft and VMware
C/C++, Python and Git
Minimum Qualifications
- ・2+ years of system software development experience.
- ・Strong C/C++ programming skills
- ・Python, Shell scripting, Linux experience
- ・1+ years 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 for Enterprise and High-Performance Enterprise.
- ・Experience in debugging and fixing issues in a distributed software stack that scale outs across thousands of nodes.
- ・Experience in debugging and fixing data corruption issues
- ・Experience in implementing data protection using erasure coding and/or RAID.
- ・Experience in compute, storage and network virtualization techniques.
- ・Experience in developing fault tolerance for no service interruption.
- ・Experience in I/O path performance engineering.
- ・Basic understanding of HTTP and REST
- ・Basic understanding of distributed object storage like Amazon S3
- ・Basic understanding of widely used storage software’s like key/value stores, SQL.
Languages:
English (Overall - 4 - Fluent)
Listed on hirly, a job board. hirly is not the employer: Rakuten is hiring for this role.
Similar jobs
- Senior Software Engineer (Backend - Python/Django)Kraken · Tokyo, JapanFirst seen 10d agoremote
- Senior Software Engineer - PerceptionApplied Intuition · TokyoFirst seen 26d ago
- Senior Software Engineer - PlanningApplied Intuition · TokyoFirst seen 26d ago
- Software Engineer – Open Position (Robotics / Backend, C++)Mujininc · Tokyo, Japan (MJHQ)First seen 2d ago
- Lead Software Engineer : Job Level - Vice PresidentMs · Tokyo, JapanFirst seen 10d ago
Browse similar roles
Want this one?
Upload your resume and hirly rewrites it for this job and writes the cover letter — in about thirty seconds, before you sign up.
Tailor my resume for this job