Job Description

Headquartered in Tokyo, Sumitomo Mitsui Banking Corporation (SMBC) is a leading global financial institution and a core member of Sumitomo Mitsui Financial Group (SMBC Group). Built upon our rich Japanese heritage since 1876, we put our customers first and provide seamless access to, from and within the Asia Pacific region. SMBC is one of the largest Japanese banks by assets and maintain strong credit ratings across our global integrated network. We work closely as one SMBC Group to offer personal, corporate and investment banking services to meet the needs of our customers.

With sustainability embedded within our strategy and operations, we are committed to creating a society in which today’s generation can enjoy economic prosperity and well-being, and pass it on to future generations.

Key ResponsibilitiesInfrastructure Operations & Administration:

Manage day-to-day operations of enterprise IT infrastructure, data center facilities, and server rooms.Administer and maintain Microsoft Windows Server environments, active directory, Linux virtual machines, VMware infrastructure, Hyper-Converged Infrastructure (HCI), and backup solutions.Manage user accounts, permissions, system access rights, and security configurations.Monitor infrastructure performance, capacity, availability, and service health to ensure optimal operation.Perform daily system checks, preventive maintenance, and infrastructure audits.Manage backups, disaster recovery processes, and system recovery procedures.

Virtualization & End-User Computing:

Administer VMware vSphere, ESXi hosts, vCenter, cluster environments, and virtual machine lifecycle management.Manage VMware Horizon View VDI environments, thin clients, and virtual desktop infrastructure.Execute host migrations, system upgrades, and infrastructure optimization initiatives.Ensure virtualization platforms remain secure, stable, and aligned with organizational standards.

Incident Management & Technical Support:

Provide Level-3 support for infrastructure-related incidents and escalations.Troubleshoot and resolve system performance issues, hardware failures, network connectivity issues, and application-related infrastructure problems.Coordinate with vendors, OEMs, and system integrators for issue resolution and support activities.Analyze system logs, reports, and monitoring tools to identify and proactively address operational risks.

Security & Compliance:

Develop, implement, and maintain infrastructure security standards, policies, procedures, and tools.Ensure operating systems, servers, and infrastructure components are patched and updated with the latest security releases.Perform vulnerability remediation and security hardening activities.Support audit requirements and ensure compliance with corporate security policies and regulatory standards

Project Management:

Manage multiple infrastructure projects simultaneously, ensuring delivery within agreed timelines and budgets.Participate in infrastructure planning, design reviews, capacity forecasting, and technology refresh programs.Coordinate implementation, testing, migration, and production rollouts of infrastructure solutions.Ensure smooth handover of project deliverables into BAU support teams.

Documentation & Reporting:

Maintain IT operational procedures, administration manuals, configuration records, and technical documentation.Prepare regular reports on infrastructure performance, capacity, availability, incident trends, and project status.Develop and maintain standard operating procedures (SOPs) and operational runbooks.

Required Qualifications

Education: Bachelor's Degree in Computer Science, Information Technology, Engineering, or a related discipline.

Experience: 8+ years of hands-on experience in enterprise infrastructure administration and support. Proven experience managing large-scale virtualized environments and enterprise server infrastructure.Experience in financial services, banking, or regulated industries will be an advantage.

Technical SkillsCore Technologies:

Microsoft Windows Server Administration

Active Directory, DNS, DHCP, Group Policy

VMware vSphere, ESXi, vCenter Administration

VMware Horizon View

VDIHyper-Converged Infrastructure (HCI)

Linux Server Administration

SAN/NAS Storage Management Backup and Disaster Recovery Solutions

Server Monitoring and Performance Management

Security:

Operating System Hardening Patch Managemen

tIdentity and Access Management (IAM)

Vulnerability Management

Infrastructure Security Best Practices

Additional Preferred Skills

PowerShell scripting and automation

Cloud technologies (Azure/AWS)

Microsoft SCCM / Intune

Network troubleshooting fundamentals

Project management methodologies

Key Competencies :

Strong analytical and problem-solving skills

Excellent troubleshooting and root-cause analysis capability

Ability to manage multiple priorities in a fast-paced environment

Strong communication and stakeholder management skills

High level of ownership and accountability

Effective vendor and third-party management skills

Attention to detail and commitment to operational excellence

Ability to work independently and collaboratively across teams