Network Administrator

About This Role

This Network Administrator role involves supporting and maintaining the bank's enterprise infrastructure, including Windows Server, Active Directory, Microsoft Entra ID (Azure AD), endpoint devices, and network systems. The position is responsible for the daily administration, security, and operational support of servers, desktops, mobile devices, and network infrastructure, and serves as a technical liaison with Managed Service Providers (MSPs), Internet Service Providers (ISPs), and technology vendors during infrastructure outages and connectivity incidents. It suits a highly skilled and motivated individual with a strong troubleshooting mindset, excellent communication skills, and the ability to manage multiple priorities in a fast-paced environment.

Responsibilities

• Administer, maintain, and support Windows Server 2016, 2019, and 2022 environments
• Install, configure, monitor, and troubleshoot Windows-based server infrastructure
• Perform server patching, upgrades, maintenance, and performance tuning
• Manage file servers, print services, application servers, and shared resources
• Monitor server health, capacity, event logs, and system performance
• Participate in disaster recovery and business continuity planning
• Maintain infrastructure documentation, inventories, and standard operating procedures
• Administer Active Directory users, groups, computers, and permissions
• Design, implement, and maintain Organizational Unit (OU) structures
• Create, modify, and troubleshoot Group Policy Objects (GPOs)
• Manage authentication, access controls, password policies, and security groups
• Administer Microsoft Entra ID (Azure AD), Microsoft 365, and hybrid identity environments
• Configure and support Multi-Factor Authentication (MFA), Conditional Access, and identity security controls
• Support employee onboarding, offboarding, and access management processes
• Implement Windows Server security best practices and Microsoft security baselines
• Conduct server hardening reviews and remediate security vulnerabilities
• Manage GPO security settings and configuration standards
• Support cybersecurity initiatives, vulnerability remediation, and audit requirements
• Review security findings from vulnerability assessments and penetration tests
• Assist with endpoint security, access management, and compliance activities
• Configure, manage, and troubleshoot enterprise network infrastructure
• Administer Layer 2 and Layer 3 network devices, including switches, routers, wireless access points, and firewalls
• Create, modify, and troubleshoot VLAN configurations
• Support routing, switching, VPN connectivity, and network segmentation