Dinesh Shanmugam
Irving,TX
Summary
Working in Wipro Technologies from Nov 2013 to till date as Senior System Administrator for the Client Citibank technology. Worked in IT Source from Jan 2013 till Nov 2013. My client location is HP. Worked as Wintel Administrator for the client UIIC. Worked in TEAMWEAR Solutions from Jan 2011 till Jan 2013. My client location is Wipro Technologies. Worked as SYSTEM ADMINISTRATOR (SA) for the client CITI Technologies services (CTS).
Overview
15
15
years of professional experience
Work History
Senior System Administrator
Wipro Limited
Irving, USA
01.2024 - Current
- Administration of Windows 2022/2019/2016/2012 Physical and VM Servers which involves, troubleshooting slowness, Operating System related Issues and Installation of packages through Microsoft System Center Configuration Manager Tool.
- Patching and Maintenance using Windows Server Maintenance, Performance Manage the entire process with Service Now tool which includes Incident, Change and Patch Management.
- Monitoring, Securities using SCOM, Tivoli Monitoring Services, BMC and CrowdStrike
- Manage the entire process with Service Now tool which includes Incident, Change and Patch Management.
- Administration of Microsoft Windows Clusters in Production Environment
- Attend calls or meetings when requested to assist in resolving infrastructure and VM issues.
- Handling Priority 1 and Priority 2 Critical tickets.
- Troubleshoot servers with unstable or underperforming OS.
- Managing around 8000+ Virtual Servers on the ESXi host environment using multiple V-Center’s & monitoring the performance of the virtual machine usage.
- Troubleshoot VM Guest slowness/latency/connectivity issues.
- Help in resolution of installation problems including VMware tools, hardware version upgrades and virtual device drivers.
- Performance and capacity management on VMware servers.
- Performance and monitoring the Virtual machine usage.
- Approving and installing security and critical patches for managing hosted servers using Update Manager and VM servers through Microsoft System Center Configuration Manager Tool.
- Server hardware troubleshooting through ILO and DRAC.
- Troubleshooting Hardware and OS problems in the Servers and Engage the vendor for coordinating hardware issues
- Troubleshooting the Backup issues, analysing logs & Perform Backup restores upon user’s request using VERITAS net backup.
- Attend weekly/monthly/quarterly meetings with coworkers, department and division teams to collaborate on enhancing our processes/support/activities, discuss the status resolutions to current, ongoing and resolved issues and communicate on any other job related information
- Taking participation in COB migration and vulnerability test.
- Tectia Installation and configuration, Fixing issues
- Working with Vendors and fixing the issues.
System Administrator
Wipro Limited
Chennai
11.2013 - 12.2023
- Performing Operations manager Role and ensures no glitches on technical front.
- Performing all regions COB test and proving the automation candidate
- Worked on the integration of teams across the sectors STI, CTI, ICG and Mexico
- Worked on the Non-Compliant persistent privilege access project thereby completely cleaning of all the 400 entries.
- Worked on Alert reduction and reduced the count of INC
- Worked with Client in introduction of automation tools which reduces the manual efforts
- Managing Physical and VMware Infrastructure environments with more than 25000+ machines across global Data Centers.
- Administration of Windows 2016/ 2012/ 2008 Physical and VM Servers which involves, troubleshooting slowness, OS related Issues and Installation of packages through Starfleet/ Monkey Wrench and Ansible Playbook.
- Patching and Maintenance using Starfleet/ Monkey Wrench Tool, Windows Server Maintenance, Performance monitoring, Securities using SCOM, Tivoli Monitoring Services.
- Manage the entire process with Service Now tool which includes Incident, Change and Patch Management.
- Administration of Microsoft Windows Clusters in Production/ UAT Environment.
- Attend calls or meetings when requested to assist in resolving infrastructure and VM issues.
- Handling Priority-1 & Priority-2 Critical tickets.
- Troubleshoot servers with unstable or underperforming OS.
- Managing around 8000+ VM’s on the ESXi host environment using multiple V-Center’s & monitoring the performance of the virtual machine usage.
- Troubleshoot VM guest slowness/latency/connectivity issues.
- Help in resolution of installation problems including VMware tools, hardware version upgrades and virtual device drivers.
- Performance and capacity management on VMware servers.
- Performance and monitoring the Virtual machine usage.
- Approving and installing security / critical patches for managing hosted servers using Update Manager and VM servers through Tivoli Endpoint Manager.
- Server hardware troubleshooting through (ILO/DRAC)
- Troubleshooting on Hardware and OS problems in the Servers through Remote and Engage the vendor for coordinating hardware issues
- Troubleshooting the Backup issues, analysing logs & Perform Backup restores upon user’s request using VERITAS net backup.
- Attend weekly/monthly/quarterly meetings with coworkers, department and division teams to collaborate on enhancing our processes/support/activities, discuss the status resolutions to current, ongoing and resolved issues and communicate on any other job related information
- Taking participation in COB migration and vulnerability test.
- Analyze Problems & escalate to appropriate Levels
- RCA preparation and meeting SLA for RCA submission
- Act on Day to Day Housekeeping tasks by using tools & scripts.
- Create regular reports for Management requirements
- Problem determination and resolution within Expected time frame.
- Identify and recommend improvements to existing processes.
- Actively taken part in Client Onboarding/Offboarding for Wintel admins.
Wintel –System Administrator
Hewlett-Packard (UIIC -Client)
Chennai
01.2013 - 11.2013
- Configuring, Managing Active Directory, Site replications in DC-DR Sites.
- Creating and Managing User Accounts in Active Directory and Secure with Group Policy Management for UIIC- user accounts and HP-User for UIIC.
- Checking the Application in IIS, ERP, SM Portal and its NLB and clusters.
- Checking all the SQL DBs and its jobs in the Core servers and SAP Servers.
- Applying patches based on the critical updates recommending Microsoft by using WSUS.
- Managing, troubleshooting and Accessing HP Blade servers and HP Proliant Servers Using ILOs.
- Configuring managing and monitoring virus in the servers through Etrust z Total Defence Antivirus console.
- Monitoring, Handling and take backups using HP Data Protector for mission critical server.
- Monitoring Networks through NNM (Network Node Manager).
- Monitoring, maintaining and accessing the tickets through HP Service Manager (HPSM).
Wintel –System Administrator
Teamwear Solutions (Wipro - Contract)
Chennai
01.2011 - 01.2013
- Disk Quota management
- Design, implement, update and maintain a security plan over the network based on the needs of the project.
- Hard Disk Drives configuration using RAID.
- Server Built, Rebuild using ILO, OS Hardening & application software under multi-platform environments, deployment of Servers
- Installed software, patching, upgrading and maintenance of operating system.
- Installed, upgraded and maintenance of server hardware components as per requirement.
- Installed complex hardware and software and upgrades to ensure work is performed as per the company policy.
- Also responsible for supervision of backup and disaster recovery operations.
- Created and implemented recommendations to improve scalability and performance.
- Performed system startups and shutdowns.
- Active directory
- Management and maintenance of servers and services including print servers, File servers, application servers, Terminal servers.
- Providing remote OS support for over 400 servers located in Citibank offices around EMEA region
- Customize the 2000/2003/2008 servers in terms of Registry, Audit/Account/Security policy, patching, to sustain Citibank Standard Operating Environment.
- Backup Management using EMC Networker
- Provide documentation for all server changes, installations, and upgrades to ensure accuracy towards ITIL Standardization.
- Installing and configuring IIS includes making site inventory and Certificate update.
- Monitoring server hardware failures and server overload by HPSIM and Tivoli.
- Updating Hardware drivers and Firmware updates as per update from release team
- Ensure all servers are patched with latest OS hot fixes.
- Optimizing and Fine-Tuning Various System Hazards/Bottlenecks.
- Timely resolution to all assigned service requests.
- Ensure anti-virus updates were performed in all the servers.
Education
B.Tech - Information Technology
Jeppair Engineering College of Engineering
Chennai06-2009
Skills
- Ability to Multitask
- Leadership
- Ability to Work Under Pressure
- Communication Skills
- Wintel Administrator
- VM Admins
Languages
English
Tamil
Technical Expertise
- Hands on Experience in Configuration and Management in the following aspect, Active Directory, Replication, DNS, IIS, WSUS, NLB, DHCP, HP(BL,ML,DL)Servers, Data Protector, Antivirus(Symantec, E trust, Total Defense) and Firewall(Cyberoam).
- Installation and maintenance of Servers 2012/2016/2019/2022.
- Installation, Configuration and Management of Anti Virus Software through Server Console.
- Identification and resolving the initial Hardware failure in HP ProLiant Servers (Disk Failure, Raid Controller Failure, Memory fault)
- Tectia Installation and configuration, Fixing issues
Platform
Servers, VM Ware, AWS, Cloud servers
Backup Tool
EMC Networker, Net backup
Server Operating System
2008/2012/2016/2019/2022
Remote Tool
RDP, VNC, ILO, Drac and Net meeting
Monitoring Tools
HPSIM, TIVOLI, Scom, Dtex, CrowdStrike
Timeline
Senior System Administrator
Wipro Limited
01.2024 - Current
System Administrator
Wipro Limited
11.2013 - 12.2023
Wintel –System Administrator
Hewlett-Packard (UIIC -Client)
01.2013 - 11.2013
Wintel –System Administrator
Teamwear Solutions (Wipro - Contract)
01.2011 - 01.2013
B.Tech - Information Technology
Jeppair Engineering College of Engineering