Sankar Natarajan
High Wycombe,UK
Summary
Experienced IT professional with a robust skill set in virtualization and compute technologies, including VMware vSphere and Nutanix AHV. Proficient in cloud platforms such as AWS, with expertise in EC2, EKS, and Lambda services. Demonstrates strong capabilities in infrastructure engineering, focusing on high availability and disaster recovery solutions. Aware in networking, including VLANs and firewalls, ensuring secure and efficient data flow. Skilled in monitoring tools like Prometheus and Grafana for enhanced observability. Utilises automation tools such as PowerShell and Bash to streamline operations. Committed to ITSM governance through ITIL practices, change management, and compliance audits. Career goals include advancing cloud infrastructure strategies to optimise organisational performance.
Overview
16
16
years of professional experience
4016
4016
years of post-secondary education
1
1
Certification
Work history
Senior Technology Specialist
Infosys Limited
London
05.2014 - Current
- Environment Scale: 700+ ESXi hosts | 7000+ VMs | Hybrid-Cloud (AWS/on-Prem) | Nutanix HCI
- Modernized large-scale VMware and Nutanix AHV environments, increasing platform stability and improving service availability by 25% across critical business systems.
- Reduced cloud operating expenditure by 40% through capacity analysis, resource rightsizing, and strategic use of AWS cost-optimization tools.
- Standardized vCenter configurations and ESXi host baselines across 700+ hosts, reducing configuration drift by 90% and improving compliance alignment.
- Executed complex cross-platform VM migrations (VMware ↔ Nutanix) with zero unplanned downtime, enabling smoother infrastructure transitions.
- Designed and executed enterprise DR strategies, reducing RTO from 4 hours to under 1 hour and ensuring audit-ready DR documentation.
- Strengthened AWS platform reliability by optimizing EC2, S3, IAM configurations, reducing cloud-related incidents by 20%.
- Improved infrastructure performance by 15% through fleetwide firmware, BIOS, and hypervisor lifecycle updates.
- Enhanced security posture through IAM hardening, network segmentation, and encryption enforcement, reducing internal and client audit findings by 70%.
- Supported Kubernetes and Rancher environments, improving deployment consistency and reducing configuration drift.
- Delivered accurate capacity forecasts, infrastructure roadmaps, and budget planning for multi-region operations.
Windows Administrator
CMC Limited
Hyderabad
01.2014 - 04.2014
- Increased Windows Server environment stability by optimizing authentication, DNS/DHCP, and patch workflows, reducing recurring incidents by 30%.
- Improved VM provisioning speed by 20% by enhancing ESXi host, virtual switch, and VM lifecycle processes.
- Strengthened hardware reliability across IBM Blade server and Cisco UCS platforms through proactive diagnostics and patching.
- Reduced access-related tickets by 40% through improved user lifecycle management, Group Policy alignment, and permission auditing.
- Improved service availability by delivering reliable DNS, DHCP, IIS, and FTP implementations in multi-domain environments.
Senior System Administrator
Aarvee Associates
Hyderabad
11.2009 - 11.2013
- Improved multi-domain Windows Server (2003–2012) reliability by eliminating replication issues and optimizing AD configurations.
- Accelerated ticket resolution by improving triage processes, documentation, and root-cause analysis.
- Delivered stable migrations and upgrades for DNS/DHCP/IIS services and server rebuilds, reducing dependency on aging infrastructure.
- Supported reliable backup and recovery through validated NT Backup operations and consistent DR drill execution.
- Provided Linux administration (CentOS/Ubuntu) and cross-platform troubleshooting, enhancing system stability.
- Automated asset and compliance reporting, enabling 100% audit readiness across all reporting cycles.
Education
Bachelor of Engineering - Electronics & Communications
Sardar Raja College of Engineering
AlangulamDiploma - Electronics & Communication
MSPVL Polytechnic College
IndiaSkills
- Virtualization & Compute: VMware vSphere, ESXi, vCenter, vMotion, DRS, HA, Nutanix AHV, Prism Central, KVM
- Cloud Platforms: AWS (EC2, EKS, S3, IAM, Lambda)
- Operating Systems: Windows Server 2003–2019, Linux (Ubuntu, CentOS)
- Infrastructure Engineering: High Availability, Clustering, DR/BCP, Storage, Firmware/BIOS Lifecycle Management
- Networking: VLANs, vSwitches, Routing, Firewalls, Load Balancing, Network Security Policies, VPC's
- Monitoring & Observability: Checkmk, Prometheus, Grafana, CloudWatch
- Automation & Tools: PowerShell, Bash, Infrastructure Automation
- ITSM / Governance: ITIL, Change Management, Incident Response, Audit & Compliance
- Containers: Docker, Kubernetes, Rancher
Certification
- Microsoft Azure Fundamentals (AZ-900)
- Microsoft Certified Professional (MCP)
- MCITP: Enterprise Administrator — Windows Server 2008
- MCSA — Windows Server 2008
- Microsoft Specialist — Windows 7
- Infosys Certified Cloud Engineer
ADDITIONAL DETAILS
Cricket, Volleyball, Photography, Music, Core health
Languages
English
Advanced
Tamil
Native
Telugu
Intermediate
German
Beginner
Timeline
Senior Technology Specialist
Infosys Limited
05.2014 - Current
Windows Administrator
CMC Limited
01.2014 - 04.2014
Senior System Administrator
Aarvee Associates
11.2009 - 11.2013
Bachelor of Engineering - Electronics & Communications
Sardar Raja College of Engineering
Diploma - Electronics & Communication
MSPVL Polytechnic College