Senior Infra Engineer - Core Technologies Section, Corporate IT Infrastructure Department (CITID)

LocationTokyo, Japan

Work modeon-site

Typefull-time

SenioritySenior

Experience5+ yrs

Company size10,000+ people

First seenOct 6, 2026 · 5d ago

Verified live1d ago

At a glanceSummarised by Seekless from the posting.

Demonstrable experience and solid competency in Microsoft Azure IaaS services, PaaS services, networking, and security

Demonstrable experience and solid competency in server operating systems (Windows, Linux)

Demonstrable experience and solid competency in DevOps, CI/CD, automation

Demonstrable experience and solid competency in hypervisor and storage platforms

Demonstrable experience and solid competency in fundamental networking concepts (DNS, firewall, load balancing, TCP/IP, etc)

Good communication and writing skills and customer-first mindset

Ability to work under pressure to meet tight deadlines

Ability to work independently and resolve issues with minimal supervision

English : Business level (TOEIC 800 or higher) or Native

5+ years’ experience as a senior engineer in a global environment

Multiple IT related certifications

Agile experience

Japanese : At least conversational level is preferred

Skills

Microsoft Azure IaaS

Microsoft Azure PaaS

Windows

Linux

DevOps

CI/CD

automation

Hypervisor

storage

DNS

firewall

load balancing

TCP/IP

Job Description:

Business Overview

The Technology Management Division (TMD) provides Corporate IT, and Cyber

Security & Privacy Governance to Rakuten Group companies and essential business management for technology organizations, thereby enabling innovation and strengthening the technology foundation. Within TMD, the Corporate IT Supervisory Department (CITD) drives Rakuten Group’s global corporate IT services and infrastructure. Our mission is to empower Rakuten through innovative and secure IT solutions that enhance efficiency and foster productivity.

Department Overview

The Corporate IT Infrastructure Department (CITID) provides the stable and reliable technological foundation that supports Rakuten’s global business operations. We deliver simple, secure, and robust infrastructure services with operational and engineering excellence, managing core infrastructure, enterprise collaboration platforms, development support tools and project management.

Position:Why We Hire

The Corporate IT Department is looking for senior infrastructure engineer with a focus on core Microsoft Infrastructure technologies, scripting and automation competencies to improve the output of the team and reduce operational overhead. The role will be based in the Tokyo Headquarters location but will work with global teams.

We hire engineers who take ownership of critical technology and continuously seek better ways to deliver it. We value technical excellence, automation-first thinking, security by design, and a passion for learning. Our engineers build and operate the platforms, networks, identity services, and endpoint technologies that power the business, while shaping the future through innovation and AI-driven solutions.

Position Details

Your responsibilities will include:

・Manage platform services on public cloud, including driving operational improvements, implementing security/compliance requirements, and cost savings

・Manage diverse server environments covering all areas of server platform management, including Monitoring, High Availability, Backup, Configuration Management, Patch/Vulnerability Management, Capacity and lifecycle management, etc.

・Develop and improve operational and management processes through the application of automation and AI

・Contribute to global projects as a lead engineering resource

・Act as a final-tier escalation point and senior consultant on technical and procedural matters

・Be a role model in quality of service, communication, and attention to detail

・Communicate proactively with global stakeholders across IT, security, and business functions

・Be flexible and adaptable to new challenges/opportunities, and have a desire to learn new technologies

Mandatory Qualifications:

Demonstrable experience and solid competency in the following areas:

・Microsoft Azure IaaS services, PaaS services, networking, and security

・Server operating systems (Windows, Linux)

・DevOps, CI/CD, automation

・Hypervisor and storage platforms

・Fundamental networking concepts (DNS, firewall, load balancing, TCP/IP, etc)

・Good communication and writing skills and customer-first mindset

・Ability to work under pressure to meet tight deadlines

・Ability to work independently and resolve issues with minimal supervision

Desired Qualifications:

・5+ years’ experience as a senior engineer in a global environment

・Multiple IT related certifications

・Agile experience

Other Information:

Additional information on English Qualification

・English : Business level (TOEIC 800 or higher) or Native

・Japanese : At least conversational level is preferred

#engineer

#infrastructureengineer

#technologymanagementdiv

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