DHARMENDRA SAHANI
Hyderabad,Telangana
Summary
Senior IT Administrator with enterprise responsibility across Windows/Linux infrastructure, Active Directory, and cybersecurity operations. Manages vulnerability remediation, SIEM alert triage, backup and disaster recovery, and endpoint hardening while supporting secure virtualization on Proxmox VE, VMware, and Hyper-V. Automates administration with PowerShell, Bash, Python, and Ansible to improve operational efficiency and service stability.
Overview
3
3
Languages
2
2
Certifications
11
11
years of professional experience
Work History
Senior IT Administrator & Cybersecurity Engineer
Yotta Tech Ports Inc.
08.2024 - 06.2026
- Led IT infrastructure administration and cybersecurity operations, spanning systems and network management, identity and access management, vulnerability management, security monitoring, and incident response for enterprise environments.
- Managed enterprise Windows/Linux infrastructure, Active Directory, DNS, DHCP, network services, endpoints, and virtualization across the organization, maintaining high system availability and performance.
- Managed virtual infrastructure on Proxmox, VMware, and Hyper-V, including VM provisioning, migration, resource management, and troubleshooting.
- Executed regular vulnerability scans with Nessus and OpenVAS/Greenbone, facilitating remediation across servers, endpoints, network devices, and applications.
- Implemented OS hardening, security baselines, patch management, and endpoint security controls in line with cybersecurity best practices.
- Monitored and triaged security alerts via SIEM platforms, analyzing system, application, authentication, and firewall logs to identify and contain potential incidents.
- Supported VAPT and OWASP Top 10 assessments across systems, networks, web applications, and APIs, and managed firewall/VPN policies for secure remote access.
- Coordinated backup, restore, and disaster recovery activities, ensuring business continuity for critical infrastructure.
- Automated administrative and operational tasks using PowerShell, Bash, Python, and Ansible, improving efficiency across IT operations.
- Oversaw IT asset inventory, security documentation, SOPs, incident records, and vulnerability reports, collaborating with infrastructure, network, security, and vendor teams.
Virtualization Engineer
ProveDW Consultants Pvt. Ltd.
01.2019 - 05.2024
- Designed, deployed, and maintained enterprise virtualization infrastructure on Proxmox VE, VMware vSphere/ESXi, and Microsoft Hyper-V, supporting infrastructure migration, expansion, and high-availability initiatives.
- Provisioned and managed virtual machines end-to-end, including vCPU/memory/storage configuration, cloning, templates, snapshots, migration, and decommissioning.
- Managed virtual networking (bridges, virtual switches, VLANs, port groups) and virtualization storage (local, NFS, iSCSI, LVM, ZFS) to ensure seamless connectivity and resource accessibility across platforms.
- Monitored virtualization infrastructure for CPU, memory, storage, disk I/O, and network utilization, proactively resolving performance issues.
- Managed virtual networking (bridges, virtual switches, VLANs, port groups) and virtualization storage (local, NFS, iSCSI, LVM, ZFS) across platforms.
- Performed VM migration and workload relocation between hosts and storage platforms with minimal service interruption.
- Standardized VM templates and configurations to accelerate deployment, and managed cluster/host resources for efficient workload distribution.
- Led capacity planning for CPU, RAM, storage, and network resources, maintaining comprehensive infrastructure documentation to support operational continuity and resource optimization.
- Executed physical-to-virtual (P2V) and virtual-to-virtual (V2V) migrations while automating repetitive provisioning tasks with PowerShell, Bash, Python, and Ansible to enhance deployment efficiency.
- VLAN/NIC Teaming
- NFS/iSCSI/LVM/ZFS.
Systems Engineer (Part-Time)
Pressmart Media Ltd.
01.2015 - 04.2018
- Administered enterprise Windows and Linux servers, ensuring high availability, performance, and reliability.
- Provided hands-on systems administration and infrastructure support across Windows Server, Active Directory, networking, and virtualization, strengthening system availability for business-critical operations.
- Managed Active Directory Domain Services, including users, groups, computers, OUs, Group Policy, and authentication, ensuring secure and efficient user access.
- Configured and troubleshot DNS, DHCP, TCP/IP, file/print services, and LAN/WAN infrastructure, optimizing connectivity and service reliability.
- Deployed and maintained physical and virtual servers across Proxmox, VMware, and Hyper-V, provisioning VMs and managing resource allocation.
- Monitored infrastructure health (CPU, memory, disk, services, network) and resolved server, OS, application, and network issues.
- Performed patching, software updates, and configuration management for servers and endpoint devices (desktops, laptops, printers).
- Implemented backup, restore, and disaster recovery procedures while maintaining SOPs, network diagrams, and configuration records to support system integrity.
- PfSense, Azure
- LibreNMS, GLPI.
Education
Bachelor of Technology - Electronics & Communication Engineering
St. Mary's College of Engineering And Technology
Hyderabad, India12-2018
Diploma - Electronics & Communication Engineering
Govt. Polytechnic College
Kanpur, Uttar Pradesh06-2009
Intermediate -
Ganesh Shankar Vidyarthi Smarak Inter College
Maharajganj, Uttar Pradesh06-2006
Skills
Active Directory
Group Policy
DNS
PowerShell
VMware vSphere/ESXi/vCenter
Virtualization infrastructure management
Windows and Linux server administration
Network services administration
Backup and disaster recovery
Capacity planning
Vulnerability assessment
SIEM monitoring
SOC
Incident response
Patch management
Firewall administration
Certification
Advanced Certificate Program in Cybersecurity (ACPCS) — Indian Institute of Technology, Roorkee (May 2023)
Timeline
Senior IT Administrator & Cybersecurity Engineer
Yotta Tech Ports Inc.
08.2024 - 06.2026
Virtualization Engineer
ProveDW Consultants Pvt. Ltd.
01.2019 - 05.2024
Systems Engineer (Part-Time)
Pressmart Media Ltd.
01.2015 - 04.2018
Bachelor of Technology - Electronics & Communication Engineering
St. Mary's College of Engineering And Technology
Diploma - Electronics & Communication Engineering
Govt. Polytechnic College
Intermediate -
Ganesh Shankar Vidyarthi Smarak Inter College