Ronit Nair

• Administer, monitor, and maintain enterprise network and systems infrastructure to ensure high availability, performance, and security across campus, data centre, and WAN environments, aligned with ISO/IEC 27001 controls and best practices.
• Design, implement, and support Layer 2/Layer 3 networking, including switching, routing, VLAN segmentation, and IP addressing schemes.
• Manage and maintain WAN, MPLS, and SD-WAN connectivity, including vendor and ISP coordination for provisioning, performance optimisation, and fault resolution.
• Configure and support network security components including firewalls, NAT, VPNs, ACLs, and DMZ environments, ensuring compliance with organisational security policies and ISO 27001 requirements.
• Implement and maintain network access controls such as 802.1X and NAC solutions to enforce secure authentication, segmentation, and access governance.
• Administer enterprise wireless infrastructure, including SSID design, authentication mechanisms, and seamless roaming across sites.
• Monitor infrastructure health, system uptime, and network performance using enterprise monitoring tools; proactively identify and resolve issues to minimise service disruption and meet service level objectives (SLOs).
• Lead incident response activities in alignment with ISO 27001 processes, including troubleshooting complex network and system faults (e.g., routing issues, STP instability, MTU mismatches), root cause analysis, and service restoration.
• Manage and support Windows Server environments (Server 2016/2022/2025), including Active Directory, DNS, DHCP, Group Policy, file services, and remote access solutions, ensuring secure configuration baselines.
• Maintain and optimise virtualised environments using VMware vSphere and vCenter, including VM provisioning, resource allocation, clustering, and high availability (HA/DRS) configurations.
• Support and administer enterprise storage solutions, including Dell EMC SAN/NAS infrastructure, ensuring reliable connectivity, performance optimisation, and replication.
• Manage and monitor backup and disaster recovery solutions using Veeam Backup & Replication (VBR), ensuring successful backup execution, data integrity, and recoverability in line with business continuity and ISO 27001 requirements.
• Perform routine system maintenance, patching, and scheduled upgrades within defined outage windows, including after-hours and weekend work where required.
• Detect, respond to, and remediate security threats, including malware removal, vulnerability mitigation, and continuous improvement of security posture.
• Develop, maintain, and enforce IT policies, procedures, and documentation related to system access, configuration standards, and operational processes, supporting ISO 27001 audits and compliance activities.
• Execute controlled changes in accordance with change management processes and support disaster recovery testing and business continuity planning.

• Installed important security and functionality patches to maintain optimal protections against intrusion and system reliability.

• Managed and supported the organisation’s IT infrastructure, including servers, network systems, and end-user environments, ensuring reliable and secure operations.
• Administered Windows server environments, handling system configuration, user management, patching, and performance monitoring.
• Designed, developed, and deployed an e-learning platform to support digital education initiatives, including user access and content delivery.
• Implemented and maintained backup and recovery solutions, ensuring data integrity and business continuity.
• Monitored systems and performed routine maintenance to minimise downtime and improve overall system performance.
• Provided technical support and troubleshooting for hardware, software, and network-related issues across the organisation.
• Delivered IT training and guidance to staff and students, improving system usage and digital capability.
• Assisted in planning and improving IT infrastructure to support organizational growth and evolving technology needs.

• Provided first-level IT support for end users, troubleshooting hardware, software, and basic network issues in a fast-paced operational environment.
• Assisted in the setup, configuration, and maintenance of desktops, laptops, and peripheral devices.
• Supported routine system administration tasks, including user account management, password resets, and access control.
• Monitored systems and reported faults or performance issues to senior IT staff for escalation and resolution.
• Assisted with network and infrastructure maintenance, including basic connectivity troubleshooting and equipment checks.
• Participated in system upgrades, deployments, and general IT projects as required.
• Delivered user support and guidance, ensuring minimal disruption to business operations.