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Salary
≈ $36k – $81k per year (Estimated)
Location
In office (Nagaoka)
Seniority
Senior · 5+ years exp
Employment
Full-Time

Confirmed on the employer's own hiring board on Sep 25, 2026. First seen by Alion on Apr 10, 2026.

Overview
Company
Impact
Profile match
Headquartered in Tokyo, Japan, Rakuten is a major global technology conglomerate that operates a diverse ecosystem of internet and digital services. The company is widely known for its massive e-commerce platforms, alongside a robust portfolio spanning financial technology and digital content. Furthermore, it has established itself as an innovative force in the telecommunications industry through the development of cloud-native mobile network infrastructure.

Job Description:

Business Overview

The Technology Platforms Division (TPD) drives the growth of Rakuten's ecosystem by delivering innovative, high-quality technology platforms characterized by integrated control and strategic partnerships.

Within TPD, the Cloud Platform Supervisory Department (CPSD) develops and manages Rakuten's state-of-the-art cloud platform, empowering global scalability and accelerating innovation across its diverse business units.

Department Overview

The Infrastructure Services Department (INSD) at Rakuten delivers high-quality data center and network services to all Rakuten Group companies globally. We empower Rakuten's innovation with a stable, high-performing, secure, and cost-competitive infrastructure. By proactively addressing challenges and ensuring Rakuten has the infrastructure services it needs to thrive, we enable global business success.

Position:

Why We Hire

The Rakuten Group continues to expand its business, and the infrastructure platform that supports it also continues to expand. In addition tomaintainingstable operation, various projects are underway for new expansions. We are looking for a technical leader who manages the growing platform, project, resource, and grow together with the company.

Position Details

The role involves managing power equipment such as power receiving and transforming facilities, emergency generators, and UPS systems tomaintainpower quality. Additionally, weoptimizethe temperature and humidity of server rooms through cooling & air management,maintainand manage building facilities, and ensure the safety of the building as part of our mission.

Furthermore, the scope of work includes compliance with relevant laws and regulations, cost management, and vendor management related to these operations.In the event ofemergencies such as equipment failures,accuratedecision-making isrequired, and it is important to have a comprehensive perspective to oversee and manage the entire facility.

1) Handling business partner (end-user) project requests:

- Assess and coordinate the availability of Data Center (DC) resources to support requests and projects from internal business units (end users)

- Verify the availability of schedules and rack space based on user requests

- AllocateDC rack space and power in response to hardware installation requests

2) Managing data center site staff and inboundlogistics:

- Handle HR administration for new hires and leavers (onboarding/offboarding)

- Manage hardware for onsite DC members and oversee procurement of new tools

- Manage inventory levels of equipment/materials,submitpurchase requests, and oversee deliveries

3) Managing data center operations policies:

- Participate in policy review and update discussions

- Update andmaintainthe department’s document portal

- Update and deliver training and materials to DC staff

4) Data center monitoring and incident response:

- Participate in on-call monitoring and coordinate incident response in collaboration with the DC operations department

- Review weekly and monthly reports and analyze data related to infrastructure issues (power and cooling data)

- Create, review, and automate reports using standard office tools (Excel, PowerPoint), BI reporting, and automated reporting development

5) DC site audits:

- Conduct work quality inspections of data center staff activities

- Conduct internal audits and inspections for compliance with DC standards and regulations

- Provide onsite support during data center security audits

6) Data center operations improvement (Kaizen) and product development:

- Research and introduce new tools that support the department’s goals formonitoringthe DC and delivering stable products/services

- Continuallydevelopingandimplementingcost-reduction strategies

- Manage efficient data center operations and execute energy-saving practices

Mandatory Qualifications:

- 5+ years of experience as a data center facility engineer, building facility engineer, or factory facility engineer isrequired

- Undergraduate experience in electrical,electronics, or mechanical engineeringrequired

- ProficiencyinMicrosoftOffice (PowerPoint, Excel, Word)

- Business levelJapanese

- Business levelEnglish(TOEIC Score 800 above)

Desired Qualifications:

- Specialization or research in Power Electronics

- First class electrical construction management engineer

- Qualified Person for Energy Management

- Completion of the required courses at an accredited school for Certified Electrical Chief Engineers (Class 2 or Class 3)

#engineer#infrastructureengineer #technologyplatformdiv

Languages:

English (Overall - 3 - Advanced), Japanese (Overall - 4 - Fluent)
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