Ramraj Mallaiyan

IT professional with over 11 years of experience in server infrastructure, cloud infrastructure, and Microsoft Azure. Strong expertise in VMware vSphere administration (ESXi, vCenter, HA, DRS, vMotion), IT operations, and incident, problem, and change management within ITIL frameworks, with a consistent record of ensuring high availability for mission-critical systems. Proven hands-on experience managing on-premises, cloud, and hybrid environments, with a strong focus on system reliability, performance, and operational excellence.

Senior Cloud Consultant - Protiviti India Member Private Ltd - Coimbatore, India

(2025-08)

• Assist in the deployment and configuration of Azure compute, network, storage, and networking components.
• Manage and administer Microsoft Entra ID Privileged Identity Management (PIM), providing secure, just-in-time access to privileged roles while maintaining compliance and security best practices.
• Configure and maintain privileged role assignments, activation settings, approval workflows, and access reviews for administrative accounts.
• Perform monitoring and alert configuration using Azure Monitoring and Logging services.
• Document environment setups, configurations, and standard operating procedures.
• Collaborate with senior cloud engineers on troubleshooting and performance optimization.
• Manage Azure compute instances for regular patching and maintenance activities; create and schedule automated shutdown jobs to deploy OS and application updates across multiple instances.
• Maintain network compliance through consistent administration of perimeter infrastructures; implement Virtual Networks, Network Security Groups (NSGs), and VPN Gateways.
• Create network configurations in the Azure environment.
• Create users in Active Directory and assign Microsoft 365 licenses; block spam email IDs in Microsoft Defender.
• Manage user access, compartments, and IAM policies for secure resource governance in OCI.
• Perform vulnerability scans using Qualys to identify and assess security risks across Azure and OCI environments.

Wintel Engineer - Arche Global Private Ltd - Chennai, India

(2023-02 - 2025-08)

• Administered VMware environments (vCenter, ESXi, vMotion, Virtual Machines, and virtual networking) to ensure high availability and optimal performance.
• Managed and maintained enterprise ICT infrastructure, including Windows/Linux servers, storage systems, virtualization platforms, networking devices, and end-user computing resources.
• Managed Active Directory, DNS, DHCP, Group Policy Objects (GPOs), user provisioning, security groups, and organizational units (OUs).
• Installed, upgraded, patched, and supported Windows Server and Linux operating systems, including storage, backup, and disaster recovery operations.
• Deployed and administered Microsoft Azure resources, including Virtual Machines, Virtual Networks, NSGs, VPN Gateways, and Application Gateways.
• Configured and maintained FortiGate firewalls, Site-to-Site VPNs, application security policies, and secure network architectures.
• Administered Microsoft 365 services, including user account management, license assignment, and access administration.
• Designed, implemented, and supported enterprise network infrastructure, including Ruckus wireless solutions and network security components.
• Monitored system performance, resolved technical incidents, and provided infrastructure support while ensuring compliance with organizational standards and SLAs.
• Utilized PowerShell scripting to automate administrative tasks and improve operational efficiency.

System and Implementation Engineer - NNTC Innovative Technology - Dubai, U.A.E

(2021-06 - 2022-11)

• Installed, configured, and administered VMware vSphere 7.0 environments, including vCenter Server and ESXi hosts.
• Created, configured, and managed Virtual Machines (VMs), virtual networking components, and Standard vSwitches.
• Performed live migration of virtual machines using VMware vMotion and storage migration activities with minimal downtime.
• Designed and managed High Availability (HA), Distributed Resource Scheduler (DRS), and Fault Tolerance (FT) clusters to ensure business continuity and optimal resource utilization.
• Managed VM templates, cloning operations, and automated deployment of virtual machines to support rapid provisioning.
• Expanded virtual disk capacity and allocated infrastructure resources to meet evolving business and client requirements.
• Configured and managed enterprise storage systems, including provisioning new storage devices and migrating workloads between storage platforms.
• Deployed, configured, and administered Veeam Backup & Replication solutions, ensuring successful backup, recovery, and disaster recovery operations.
• Implemented and managed Azure AD Connect synchronization and supported Microsoft Exchange Server administration.
• Maintained and supported enterprise ICT infrastructure, including servers, storage systems, networking components, and end-user computing environments.
• Developed and maintained technical documentation, including system configurations, operational procedures, and infrastructure maintenance activities.

System and Storage Engineer - Digital Nexus LLC - Muscat, Oman

(2018-09 - 2021-04)

• Provided Level 2/Level 3 support for VMware vCenter and ESXi environments, ensuring high availability, performance optimization, and operational stability of virtual infrastructure.
• Executed Physical-to-Virtual (P2V) migration projects and administered Active Directory services, including user management, authentication, and infrastructure troubleshooting.
• Managed enterprise backup, replication, and disaster recovery solutions, ensuring data protection, business continuity, and compliance with recovery objectives.
• Administered Windows and Linux server environments, including system installation, patch management, performance monitoring, storage administration, and backup/recovery operations.
• Deployed, configured, and maintained virtual machines, infrastructure services, and enterprise applications across production environments.
• Monitored and supported critical systems through proactive maintenance, incident management, and participation in 24x7 operational support activities.
• Investigated and resolved complex infrastructure, backup, and restore issues while ensuring minimal service disruption and timely resolution of incidents.
• Installed and upgraded Windows Servers with SAN connectivity in multi-domain environments, supporting scalable and resilient enterprise infrastructure.
• Administered core Microsoft services, including Active Directory, DNS, and DHCP, to ensure secure and efficient network operations.
• Managed data center operations, hardware resources, vendor coordination, and IT asset lifecycle management in accordance with organizational standards and best practices.
• Created and maintained detailed technical documentation, standard operating procedures (SOPs), and infrastructure configuration records to support operational excellence and knowledge sharing.

Desktop Support Engineer - Will Computer and Communication Private Ltd - Chennai, India

(2014-10 - 2018-05)

• Installed, configured, and maintained desktop hardware and resolved related software issues.
• Installed and troubleshot client-based OS issues on Windows XP, Windows 7, and Windows 8.
• Installed and troubleshot server-based OS issues on Windows Server 2008 and 2012.
• Provided remote support to clients using RDP, VNC, and DameWare.
• Created shared folders and assigned permissions to client users.
• Installed and configured network printers.
• Software deployment – installation, troubleshooting, and support.
• Managed vendor relationships for warranty computer support.
• Performed basic troubleshooting of Windows Active Directory issues.

Diploma - Electronics and Communication - William Carey University, Shillong (2009-06 - 2012-08)