DEPUTY MANAGER - IT ADMINISTRATOR

PRIME FUNCTION

Responsible for administration, monitoring, troubleshooting, and maintenance of enterprise IT infrastructure, Microsoft 365 services, Windows servers, network security, and end-user systems to ensure secure, stable, scalable, and highly available IT operations.

JOB DESCRIPTION / RESPONSIBILITIES

• Administer and support Microsoft 365 services including Outlook, Exchange Online, Teams, OneDrive, and SharePoint.
• Manage Active Directory, Azure AD, Group Policies (GPO), DNS, DHCP, user provisioning, and identity/access management.
• Administer and maintain Windows Server environments including file services, permissions, backup, monitoring, and patch management.
• Configure, manage, and troubleshoot FortiGate firewalls including VPNs, NAT, ACLs, web filtering, and security policies.
• Monitor and troubleshoot LAN, WAN, Wi-Fi networks, switches, routers, and internet connectivity issues.
• Support wireless infrastructure including access points, SSIDs, user authentication, and network optimization.
• Manage SSL certificates, PKI concepts, SFTP configurations, and secure communication mechanisms.
• Perform root cause analysis and resolve infrastructure, server, email, endpoint, and network-related issues.
• Manage endpoint security, antivirus, compliance, and asset management solutions.
• Coordinate with vendors and service providers for escalations, support, upgrades, and maintenance activities.
• Maintain IT documentation, SOPs, asset inventory, backup records, and infrastructure diagrams.
• Ensure adherence to IT security standards, backup policies, disaster recovery, and compliance requirements.
• Provide timely technical support to end users and ensure incidents are resolved within agreed SLAs.
• Support automation and administrative tasks using PowerShell scripting where applicable.

AUTHORITY

• Recommend infrastructure improvements, security enhancements, and system optimization measures.
• Escalate critical incidents and coordinate with vendors for resolution.
• Approve routine user access requests and infrastructure support activities as per policy. 

JOB SPECIFICATION / COMPETENCY

• Strong knowledge of Microsoft 365 Administration (Exchange Online, Outlook, Teams, SharePoint, OneDrive).
• Hands-on experience with Active Directory, Azure AD, DNS, DHCP, Group Policy, and Windows Server administration.
• Good knowledge of FortiGate firewall administration, VPNs, and network security concepts.
• Strong understanding of LAN, WAN, Wi-Fi networking, switching, routing, and troubleshooting.
• Knowledge of SSL certificates, PKI, SFTP, encryption, and secure communication concepts.
• Experience in troubleshooting infrastructure, server, network, endpoint, and Microsoft 365-related issues.
• Knowledge of backup, patch management, antivirus, and endpoint management solutions.
• Basic scripting and automation knowledge using PowerShell.
• Good communication, documentation, analytical, and problem-solving skills.
• Ability to work independently and manage multiple IT support activities effectively.

PERFORMANCE MEASURES

Core Skills & Technical Expertise

• Windows Server Administration (2012–2021)
• Active Directory, DNS, DHCP, GPO, DFS
• Microsoft 365 Administration (Exchange Online, Outlook, Teams, SharePoint, OneDrive)
• Azure & Intune Administration
• Azure AD, Hybrid Identity, IAM
• LDAP/LDAPS, RADIUS Authentication
• Firewall & Network Security Management
• LAN/WAN, VPN, Switching & Wireless Networking
• PKI / Certificate Authority & SSL Certificate Management
• Endpoint & Patch Management (Endpoint Central)
• ManageEngine ITSM
• PowerShell Scripting & Automation
• Strong troubleshooting and diagnostic skills

Preferred Attributes

• Strong analytical and problem-solving capabilities.
• Ability to manage critical infrastructure and security incidents effectively.
• Good communication and stakeholder management skills.
• Self-motivated, organized, and capable of working in fast-paced environments.
• Strong focus on system reliability, security, and operational excellence.

Preferred Qualifications

• Bachelor’s degree in computer science, Information Technology, or related field.
• 8-12 years of experience in IT Infrastructure/System Administration.

Relevant certifications are preferred

Skills

Competencies