System Admin Resume

SUMMARY:

To provide infrastructure and application support expertise to achieve organization goals and objectives. Expertise in administration, troubleshooting and configuration of RedHat Linux. Client focused, able to work independently while interacting across different teams to accomplish projects.

PROFESSIONAL EXPERIENCE:

Confidential

System Admin

Installed and configured RHEL7.x systems in large scale VMware virtual environment.
Installed custom software and application on various systems for healthcare need.
Upgraded RHEL servers to latest release and applied RHEL OS enhancement and bug fixes as per business needs.
Worked with Vendor and application analyst for various system and resources tunings.
Provide hardware and software related technical support to all departments; Identify and resolve hardware and software problems
Installed and configured virtual machines in VMWare virtual environment.
Worked on virtual machines templates, snapshots and cloning.
Manage and monitor of ESXi hosts resources.
Knowledge of VMWare site Recovery Manager and automate Disaster Recovery Process.
Involved in troubleshooting performance related issues.
Administered users, groups, passwords, and other aspects of security.
Maintained formal documentation of managed systems.
Monitored system logs and activities on all servers.
Implemented security policies and procedures to ensure the security and integrity of the environment as per company standard and policies.
Support on - call requirements as needed.
Performed Health check for Linux server’s infrastructure.
Familiarity with large scale configuration management and OS customization(RHEL satellite server, puppet).

Confidential

System Admin

Provided RHEL system administration support RHEL6.x, 7.x servers in a 24x7 environment.
Installed OS, software, patched, and maintained system performance by performing system monitoring and troubleshooting system hardware, software, networks and operating systems.
Created volume groups/logical volumes, file systems etc.
Managed NFS exports and CIFS shares on Linux servers.
Upgraded Firmware/Microcode for system, processors, disks, HBA adapters.Work with team to define OS and server standards and procedures.
Troubleshoot and Analyzed System performance using Top, Sar, Iostat, Vmstat etc.
VMware virtual server deployment using templates. CPU/Memory and disk allocation to VMs per requirements.
Used the LVM extensively; Created/Modified/Deleted Volume Groups, Logical Volumes and File systems; Added/Removed physical disks.
Create checklist and verify installed servers are built according to standards procedure.
Contribute to setup standards and create gold image for the installation.
Good knowledge of VMWare virtualization technology and use with RedHat Linux servers.

Confidential

Consultant

Interacting with vendors and service providers.
Responsible for Installation, configuration, troubleshooting and maintenance of RedHat servers.
Configured volume groups and logical volumes, extended logical volumes for file system growth needs using Logical volume manager (LVM) command.
Providing technical supports for internal users.
Coordinate operations with storage, backup, monitoring and application teams.
Performed the daily system administration tasks like managing system resources, and end users support, operations and security.
Diagnosing and resolving systems related incidents in accordance with priorities setup in dealing with trouble tickets.
Perform tuning and capacity planning tasks to maintain optimal system performance and availability.