Database Engineer - System Infrastructure Department, System Division, Rakuten Bank, Ltd.

Rakuten Group, Inc.

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Tokyo, Japan Until 9/14/2026 H-1B sponsor history First posted March 28, 2025 Last posted July 16, 2026
Job description

Job Description:

Department Overview 

The System Division is an organization where you can engage in all tasks related to all system, such as planning, development, operation and maintenance, etc., ranging from developing core business systems to smartphone applications for iPhone / Android.  

The systems are based on open architectures and we are also actively adopting open source technology. As taking on the important role of IT that determines the success or failure of the banking business, which is a social infrastructure, you can also enjoy the taste of it.  

In this great environment, we are looking for new members who can mutually stimulate and grow together. 

 

Why We Hire 

As a database professional, you will mainly engage in product selection, design, development, and operation of a wide variety of databases. We especially welcome those who can lead engineers, and those who have the motivation and skills to become a leader. 

Position Details 

  • Design and development of databases on new services 

  • Improve database parameters of current services 

  • New technology  consideration and proposal 

  • Management of infrastructure projects 

  • Leading team as a team leader or assistant leader 

Mandatory Qualifications: 

  • Practical experience of RHEL/Solaris servers.(5 years or more) 

  • Practical experience of Oracle databases (5 years or more) 

  • Project management experience (3 years or more) 

  • Knowledge with hardware/storage of basic technology 

  • Knowledge with software/middle ware of basic technology 

  • Practical experience of performance tuning and trouble shooting 

Desired Qualifications: 

  • Practical experience of system design (more than 100 servers) 

  • Practical experience of file servers 

  • Design and implementation experience of Web applications 

  • Practical experience on financial services. 

  • Practical experience of web system development or operation 

  • Ability to think over the entire system, not just the database 

  • Team leading experience 

  • Curiosity towards new services and technologies, and self-studying ability 

※ For more information, please refer to the links below: 

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Languages:

Japanese (Overall - 4 - Fluent)
About this role

Summary

Design, develop, and manage databases for new services and current operations.

Job title

Database Engineer

Experience level

5+ years

Industry

finance

Location requirements

Tokyo, Japan; remote work not allowed

Salary

Not specified

Visa sponsorship

H-1B sponsor history

Management role

Yes

Skills & keywords

Required skills

RHELSolarisOracleproject managementhardwaresoftwareperformance tuningtrouble shooting

Preferred skills

system designfile serversweb applicationsfinancial servicesweb system developmentteam leadingcuriosity

Specializations

databaseinfrastructureproject managementperformance tuningsystem design
Locations

Structured locations inferred from the posting.

Tokyo, Japan

On-site City