Ratheesh G
Summary
Experienced IT professional with 14+ years of expertise in Windows systems administration and VMware virtualization. Proven track record of providing exceptional support for IT operations, troubleshooting complex technical issues, and optimizing system performance. Adept at maintaining robust and efficient IT infrastructures, ensuring seamless operations in a support role.
Overview
17
17
years of professional experience
1
1
Certification
Work History
Cloud Support Engineer
NCS Pte Ltd
12.2023 - Current
- Cloud Platforms: AWS (EC2, S3, RDS, VPC, IAM, Lambda, CloudWatch, SNS)
- Operating Systems: Windows, Linux ,EKS
- Provide technical support for AWS infrastructure, ensuring high availability and performance.
- Troubleshoot and resolve issues related to AWS services, including EC2, S3, RDS, and VPC
- Monitor cloud infrastructure using CloudWatch and respond to alerts to maintain system health.
- Performing windows and linux pacing
- Fix the cloudscape fining
Senior System Administrator
Helius technologies (NCS Singapore- Govtech Agency- CAT2 Security Clearance)
01.2022 - 12.2023
- Worked on Server Operating Systems (2003, 2008,2012,2016,2019)
- Vsphere 6.7 and 7, ESXI 6.7 and 7.0 ,VMware HA
- Application Servers: Microsoft Active Directory 2012/2016, DHCP, DNS
- Servers BLc7000, ProLiant BL460c Gen 9 and Gen10,Dell R710,R610,2950,IBM X225,X3550model installation, configuration and administering HCL global 2360T,HP MSA500 DAS storage
- Managing datacenter support, Windows and VMWare, incident & break-fix; 24/7 on call support for infrastructure and application
- Supporting HPE BLc7000 Enclosure ,BL 460c Gen9 and Gen10 servers BIOS and Firmware Upgrade
- Performance optimization of all vSphere components (Compute & Storage)
- Troubleshoot Networking, Storage, vCenter Server, ESXi host, vSphere cluster, vMotion& virtual machine issues
- Analyzing log bundles to diagnose and troubleshoot issues in vSphere
- Veritas Netbackup( Monitoring daily backup , Troubleshoot & restore backup when required )
- Deployments, Upgrades, Administration & patching Windows Servers (2008/2012/2016), Vm & ESXi Servers on VMware vCenter 6.5 & 6.7 & VCSA as well as Firmware updates & upgrades, Esxi Blade & ILO configuration
- Taking care Windows virtual server build and deployment
- Good knowledge of PowerShell
- Having knowledge of AWS cloud
- Troubleshooting Windows Operating system related issues which are escalated to L3 support
- Security/zero-day vulnerability assessments & maintenance; audits, patching, hardening & group policies management using CIS, Nessus Vulnerability Scan
VMware Administrator
IBM India
04.2016 - 12.2021
- Performances issues with Virtual machines and troubleshooting from VMware end.
- Involved in V2V of with prerequisites, execution and post checks
- Configuring shared RDM disks across virtual machines in SQL clusters
- Coordinate with project managers and build VM servers and Physical server
- Creating Data stores and adding them to datastore clusters
- Creating clusters and configuring cluster settings
- Patching ESXi host and VCenter
- Adding ESXI hosts to cluster
- Proficient in Installing, troubleshooting and managing Windows Operating System 2003 & 2008, 2012 ,2016 Administration
Senior Engineer
Mindtree
06.2015 - 04.2016
- Maintaining Windows 2008 and 2012 servers
- Creating and managing users, groups, GPO in Active Directory
- Managing escalations for P1 and P2 incidents and resolving them within agreed SLAs
- Cloud computing deep knowledge in Centurylink and basic Knowledge in Windows Azure cloud
- Installing, configuring and managing virtual infrastructure and virtual center
- Manage VM’s using VMware virtual center
- Monitoring of VM’s & ESXI servers (CPU, Memory, Disk, Network Utilization)
- Performing Snapshots, Cloning
- Creating and managing virtual machines
- Part of all Server deployments, including application installations, operating system updates and security patches & Managing Virtual Infrastructure
System Engineer
Archeangroup
01.2015 - 06.2015
- Maintaining Windows 2003 & 2008 servers
- Backup Tools : Symantec Backup Exec version 14
- Creating and managing users, groups, GPO in Active Directory
- Creating and managing virtual machines.
System Administration
Allied Digital Services Ltd, Client-Thirdware Solutions
10.2013 - 12.2014
- Installing, Configuring and maintaining Windows 2003 & 2008 servers
- Implementing, Managing and Maintaining File and Print server
- Configuring Active Directory & Managing users, groups & computer
- Good knowledge on DNS, DHCP, group policies
- Working knowledge on Fortinet firewall, c110
- Good knowledge on VMware Esx, Esxi5.1and 5.5, P2V,V2V,Clone
- Updating Microsoft Patch in Windows Servers and Clients
- Advanced troubleshooting skills in OS-related issues
- Responsible for installing and updating anti-virus
- Worked on environment ITIL Process
- Good Knowledge of Incident Management/Problem Management/Change Management
- 100% SLA Compliance for all support activities especially addressing all the ODC’s at Thirdware
- Well versed in maintaining and driving metrics for all support activities which in turn helps the senior management to take decisions
- Well-versed in troubleshooting both hardware and software implemented at Thirdware Chennai
- Strong analytical, problem-solving, planning and organizational skills
- Responding to Alerts & Tickets generated by system, applications and users
System Administration
Allied digital services. Ltd, Client -State Bank of India
02.2007 - 03.2013
- Handling the day issues in the cluster, Managing domain controller, application and hardware support of MICR machine with AiDPS(Aperta)application.
- Windows Active Directory administration, policy and patch management
- Windows 2000 Advanced Server,2003 with SQL Clustering
- Configuring Active Directory on 2000,2003&2008
- Unisys NDP Quantum Series Systems
- Unisys, Burroughs smart source Cheque scanner systems
- RAID 1,5 Configuration
- Configured RAID Levels 5 –Dell PowerEdge R710
- Lipi Printers And HP LaserJet Printers
Education
BE - Computer Science
St. Xavier’s Catholic College of Engineering
2006
Skills
- coordinate with Architecture build the servers in AWS cloud
- Fix the finding from cloudscape
- Worked on Server Operating Systems (2003, 2008,2012,2016,2019)
- VMware Vsphere 67 and 7, ESXI 67 and 70 ,VMware HA
- Application Servers: Microsoft Active Directory 2012/2016,2019 DHCP, DNS
- Servers BLc7000, ProLiant BL460c Gen 9 and Gen10,Dell R710,R610,2950,IBM X225,X3550model installation, configuration and administering HCL global 2360T,HP MSA500 DAS storage
- Good Knowledge of Veritas Netbackup 9101
- Basic Knowledge of Hitachi Storage
- Basic Knowledge in Networking products (Cisco, Fortinet)
Certification
Microsoft Certified Professional (10729344)
Microsoft Azure Administrator Associate (H388-6118)
Google Cloud Certified in Associate Cloud Engineer
Languages
English
Tamil
Malayalam
Timeline
Cloud Support Engineer
NCS Pte Ltd
12.2023 - Current
Senior System Administrator
Helius technologies (NCS Singapore- Govtech Agency- CAT2 Security Clearance)
01.2022 - 12.2023
VMware Administrator
IBM India
04.2016 - 12.2021
Senior Engineer
Mindtree
06.2015 - 04.2016
System Engineer
Archeangroup
01.2015 - 06.2015
System Administration
Allied Digital Services Ltd, Client-Thirdware Solutions
10.2013 - 12.2014
System Administration
Allied digital services. Ltd, Client -State Bank of India
02.2007 - 03.2013
BE - Computer Science
St. Xavier’s Catholic College of Engineering
Microsoft Certified Professional (10729344)
Microsoft Azure Administrator Associate (H388-6118)
Google Cloud Certified in Associate Cloud Engineer
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