NAVEEN JAMUNA
Summary
IT Administrator with 3.5+ years of experience in system administration, network support, and user management. Skilled in Active Directory, DNS, DHCP, and Office 365 with strong troubleshooting and support experience, along with hands-on Azure knowledge, including Virtual Machines, VNets, NSG, Load Balancer, Storage, and Entra ID. Currently preparing for AZ-104 certification.
Overview
4
4
years of professional experience
3
3
years of post-secondary education
1
1
Certification
Work History
IT Administrator
MediaMint
Hyderabad
10.2022 - Current
- Resolved 4500+ IT support tickets involving endpoint, network, Outlook, VPN, and access-related issues while maintaining strong SLA adherence
- Delivered L2 support for Windows, Office 365, Outlook, VPN, macOS, and Linux systems, enhancing user experience across diverse environments
- Administered Active Directory user accounts, access permissions, onboarding, and offboarding activities
- Managed DNS, DHCP, network configuration, printer setup, and connectivity troubleshooting
- Supported Office 365 administration, including user configuration and troubleshooting
- Worked with endpoint security tools, including CrowdStrike and Kaspersky
- Performed basic Fortinet firewall configuration and troubleshooting
- Coordinated with internal teams to troubleshoot and resolve infrastructure, network, and user access issues, improving operational efficiency in enterprise environments
- Supported users in resolving hardware, software, email, and system-related technical issues, ensuring minimal downtime and maintaining productivity
Education
Bachelor of Technology (B.Tech) - Civil Engineering
Holy Mary Institute of Technology & Science
Hyderabad , India 08.2017 - 01.2021
Skills
- System Administration
- Active Directory
- Office 365 / Microsoft 365
- Windows Administration
- User onboarding/offboarding
- User access management
- Group Policy (Basic)
- Cloud & Azure
- Azure Virtual Machines (VM)
- VM Scale Sets (VMSS)
- Virtual Networks (VNet)
- Azure Load Balancer
- Azure Storage Accounts
- Azure DNS
- Microsoft Entra ID
- RBAC
- Azure Bastion
- Networking
- VPN configuration
- Network Troubleshooting
- DNS
- DHCP
- TCP/IP
- IP Addressing
- VNet Peering
- NSG
- Security & Endpoint Management
- Endpoint Security
- CrowdStrike
- Kaspersky
- Access Control
- Device management
- Technical support
- Remote support
- IT asset management
- Hardware troubleshooting
- Network monitoring
- Network protocols
- Azure Portal
- SLA management
- Zoho Desk
- Endpoint security
- Remote support
- Network protocols
Certification
Microsoft Certified: Azure Administrator Associate (AZ-104), In Progress
Azure Hands On Experience
- Deployed and managed Azure Virtual Machines and VM Scale Sets (VMSS)
- Configured Azure Load Balancer for high availability environments
- Created and managed custom VM images for VMSS deployments
- Implemented Virtual Network (VNet) Peering and connectivity configurations
- Configured Network Security Groups (NSG) for traffic management and security
- Worked with Azure Storage replication, including LRS, ZRS, and GRS
- Configured Azure DNS and basic Entra ID administration
- Managed RBAC role assignments and access control in Azure environments
Timeline
IT Administrator
MediaMint
10.2022 - Current
Bachelor of Technology (B.Tech) - Civil Engineering
Holy Mary Institute of Technology & Science
08.2017 - 01.2021