Aravindh Sekar

• Designed and maintained hybrid infrastructure using VMware vSphere, Proxmox, and Hyper-V. • Led multiple on-premise to cloud migrations (AWS, Azure) for production workloads. • Automated infrastructure provisioning using Terraform and Ansible across dev/test/prod environments. • Managed Dell and HP physical servers including RAID setup, firmware updates, and performance tuning. • Administered SAN and NAS storage systems, including backup storage planning and lifecycle management. • Implemented advanced FortiGate firewall configurations including Site-to-Site VPNs and SSL VPNs. • Managed Microsoft Entra ID (Azure AD) and synchronized with on-prem Active Directory. • Administered Office 365 (Exchange Online, SharePoint, Teams), ensuring access control and data protection. • Developed PowerShell and Python scripts for user onboarding, reporting, and scheduled maintenance tasks. • Deployed Trend Micro Cloud One for endpoint and server security across all branches. • Set up Jenkins-based CI/CD pipelines for automated deployment and server configuration validation. • Installed and maintained Linux servers (CentOS, Ubuntu) for internal apps and web services. • Integrated cloud monitoring using Azure Monitor, Grafana, and Prometheus for infrastructure visibility. • Conducted regular DR drills, backup verification, and implemented restore strategies using Veeam. • Followed ITIL framework for change, incident, and asset management processes. • Provided technical leadership for IT audits, ISO compliance, and system documentation. • Built custom application servers with NGINX/Apache for internal tools and ERP platforms. • Troubleshot Layer 2/3 network issues, coordinated with ISPs, and handled network failover planning. • Managed cloud IAM policies, key vaults, and role assignments for secure access control. • Provided 24x7 support for critical systems and worked closely with vendors and stakeholders.

• Maintained centralized Active Directory environment with Group Policies and login automation. • Managed Hyper-V virtual infrastructure for academic, administrative, and ERP systems. • Led backup and restore planning using native Windows Server tools and scripting. • Administered Office 365 accounts, calendar, and mail flow policies for 200+ staff and faculty. • Installed Linux-based ERP and LMS servers (Moodle), including Apache/MySQL stack management. • Configured FortiGate UTM firewall with web filtering, VPNs, and threat detection features. • Provisioned and managed NAS devices for department-wise shared access and access control. • Supported database migrations (MySQL, SQL Server) and implemented backup rotation plans. • Used PowerShell to automate administrative tasks like user creation, reports, and patching. • Configured Proxmox cluster and migrated VMs with zero downtime during upgrades. • Implemented network segmentation and VLAN setup for labs and administrative zones. • Documented SOPs for hardware maintenance, escalation paths, and software installations. • Provided first and second-level IT support for 300+ users including lab and exam systems. • Participated in IT budgeting, vendor coordination, and asset procurement processes. • Built internal file and print servers and managed shared access permissions. • Enabled DNS/DHCP on Linux-based BIND servers for campus-wide name resolution. • Maintained secure FTP and Samba services for internal document exchange. • Conducted faculty training on Microsoft Teams, OneDrive, and Zoom-based classroom tools. • Ensured system updates and antivirus patches were applied monthly across all devices. • Supported disaster recovery planning and created redundancy plans for ERP and finance systems.

• Provided L1/L2 technical support for Windows/Linux OS, printers, applications, and networking. • Assisted in setting up VMware ESXi hosts, creating and managing virtual machines. • Supported backup and restore jobs using Acronis and native OS tools for desktops and servers. • Configured and maintained RAID levels on Dell and HP servers as per customer requirements. • Installed and configured Windows Server 2012/2016 roles including AD, DNS, DHCP. • Managed endpoint protection solutions using Trend Micro and Windows Defender. • Helped with cloud migrations for small businesses including mail and file servers to Office 365/Azure. • Built and deployed basic Linux web servers using Apache, PHP, and MySQL. • Participated in IT rollouts, hardware installations, cabling, and Wi-Fi setup at new offices. • Created PowerShell scripts for user account creation, printer mapping, and group memberships. • Configured FortiGate firewalls for NAT rules, port forwarding, and VPN tunnels. • Supported NAS device management for customer backup, archiving, and file sharing. • Troubleshot network switches, connectivity issues, and implemented VLANs for guest/staff separation. • Performed routine hardware diagnostics and liaised with vendors for server repairs. • Managed small office networks including routers, switches, UPS, and printers. • Deployed customized application servers for client CRMs and small web portals. • Assisted in writing IT documentation, SOPs, and user manuals for recurring issues. • Maintained asset registers and supported inventory management across client sites. • Gained hands-on experience with basic DevOps tools like Git and Jenkins in demo/test projects. • Provided remote support via TeamViewer, AnyDesk, and RDP for client issue resolution.