UNIX System Administrator Resume

SUMMARY:

Have 11+ years of experience in IT Infrastructure support industry
9 years of experience in UNIX/Linux administration/support
Good planning, decision making & problem solving capabilities
Certified System Administrator
Good customer/client interactions involved
Ability to learn new technologies and enjoy challenging jobs

PROFESSIONAL EXPERIENCE:

Confidential

UNIX System Administrator

Responsibilities:

Providing L3 support for 2000+ UNIX servers in Dev & PROD environment
Experience in virtualizations like Zone, LDOM, VMWare ESX
Host & Storage based SAN Migration in Solaris & Linux
Expertise in HBA & Firmware upgrades considering the pre - requisites
Multipath configuration & administration
Administered heterogeneous storage replication environment with HP RaidManager
Volume management - LVM, SVM, VxVM
Service administration in Linux & Solaris
Resolve system errors, disk space problems, huge file sizes, file system full errors
Configured / Reconfigured ILO/ILO2 in HP Proliant servers running RHEL 4/5
File system management (ZFS, UFS, LOFS, EXT3/4, NFS)
Printer management via CUPS
Worked on EMC Powerpath, SRDF and SAN Storage Related Issues
Created various scripts for BCV replication using RM
Handled various incidents - Troubleshooting Sun, IBM and HP Servers for Booting, Network, Hardware and OS Level Issues
Good experience in handling high priority incidents & providing immediate resolution
RCA identification for high severity issues
Performance monitoring using commands like swap, top, iostat etc.
NFS Server configuration & administration
Patch management in Solaris, Redhat & SuSE via HPSA
Involved in planning & executing Disaster Recovery Drills for various clients
Performed various security health checks, vulnerability scans & remediation to meet the security standard requirements
Veritas cluster server configuration and administration
VxVM installation & upgrade
Zone configuration and administration
Automated backup jobs using crontab
Package installation and management
Deployed client and agent software in co-ordination with various application teams
Decommissioned hundreds of legacy Solaris and Linux physical servers
Coordination between the Vendor and Customer in case of Hardware Replacement
Proactively monitoring and managing application and system resources: daemons, processes, online, interfaces, file systems, and CPU / Memory utilization
Vendor Management (ORACLE-SUN, SYMANTEC, Red Hat, SuSE, Third parties)
Actively worked on Problem Management to resolve the repetitive issues hence reducing the incoming incident tickets
Reviewed implementation plan for planned changes to minimize the errors during execution
On Call rotation & designated as escalation point of contact to resolve high priority incidents
Closely worked with Project Managers, Security Compliance Managers (vulnerability management) in order to make sure all UNIX related activities meet agreed business requirements

Confidential

UNIX System Administrator

Responsibilities:

Activities involving kernel & environmental upgrades
Performing Veritas upgrade on Solaris 8/9 & 10 servers
Performing Security Health Check on Solaris/Linux Servers
Change management activities are performed
Disk management done in LVM, SVM, VxVM
VERITAS CLUSTER configuration & troubleshooting
File system creation and administration
Performed Backup & recovery activities via TSM
Root Cause Analysis performed for various issues
Involved in resolving Incident tickets
Creating and maintaining Quality Documents for Knowledge Sharing
Mentor junior team members and make them understand the client environment & infrastructure
Provide technical & process KT to the team members

Confidential

Senior Support Executive

Responsibilities:

Provided Internal Helpdesk to RSA Employees(Enterprise)
First point of contact for any IT related queries/issues
Handled Issues related to OS, Hardware & Enterprise Applications
Providing assistance to RSA users by remotely connecting their PCs.
Complete IT Helpdesk & Account Administration tasks involved.
Authorization of system accounts is done to maintain system compliance / integrity.
Performed basic troubleshooting for Lotus Notes & PCs
Handled Password resets for various RSA Applications
Assigning tickets to various teams based on user queries
Maintained process metrics to achieve targets

Confidential

Senior Support Agent

Responsibilities:

Providing technical assistance via telephone
Handled Issues related to OS, Hardware & HP shipped software
Handled Issues from end users or direct customers
Technical updates on desktops & laptops are discussed

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