SUMMARY:

• Over 8+ years of System Administration experience on various flavors of UNIX / LINUX (Red Hat, Fedora, CentOS).
• Actively worked on Server builds, Installs, Upgrades, Patches, Migration, Troubleshooting, Security, Storage, Backup, Performance Monitoring and Fine - tuning.
• Expertise in automated Job scheduling using Control-M and CRON.
• Experienced in implementing the operation and maintenance of the system design and architecture.
• Experience in Linux Server builds using Jumpstart tools like Cobbler.
• Configured the server provisioning process by implementing kickstart snippets on Cobbler.
• Have automated many tasks using Shell Scripting (bash).
• Configuring & Implementing Configuration Management Tool (Chef)
• Working on the source control using GIT for committing, reverting and pull request.
• Worked on OS migrations, upgrade, BIOS and NIC firmware upgrades.
• Well versed in configuring Volume Groups and Logical Volumes, extended logical volumes for the system growth requirements using Logical Volume Manager (LVM).
• Experience in updating Operating System maintenance and modification levels by applying software patches and fixes.
• Experience in remediating the Security Hardening in Linux servers.
• Installation, Configuration and troubleshooting of system security applications like SSH, CyberArk.
• Worked on sudo utilities like sudosh, powerbroker etc.
• Familiar with AD authentication login tools like Likewise and VAS.
• Monitoring system resources, logs, disk usage, scheduling backups and restore.
• Responsible for monitoring and working on Incident tickets and Changes.
• Worked in VMWare V Sphere and V Center
• Good experience in setting up of Hardware RAID for data redundancy.
• Worked with ASM disk addition to Oracle DB in Linux physical server and Virtual Machines.
• Experience in using various network protocols like HTTP, UDP, FTP, TCP/IP, and SMTP.
• Experience in installing, configuring, supporting and troubleshooting Linux Networking services and protocols like DNS, NFS, DHCP, LDAP, NAS, FTP and SSH.
• Helped to establish standards, policies and procedures for all aspects of UNIX/LINUX server environment (e.g., configuration, administration, documentation, etc.)
• Experience in installing, configuring and maintaining WebSphere, WebLogic Application Server.
• Experience in working with project tools like JIRA (Kanban board). Following up with business and technical teams in solving the issues.
• Involved in end to end activities in decommissioning of servers.
• Experience supporting 24x7 production computing environments. Experience providing on-call and weekend support.

TECHNICAL SKILLS:

Skills: Unix, Linux Administration, DevOps

Scripting Languages: Shell Scripting, Python

Scheduler: Control-M, Cron

Tools: HP Server Automation, Red Hat Satellite, sudosh, Powerbroker, VAS, Likewise

Hardware: HP ProLiant G7, G8

DevOps Tools: Chef, OpenStack, Git, Splunk, Docker, Jenkins

Virtualization: VMware V Sphere, Virtual Box, VMware Workstation

Operating Systems: UNIX & Linux (Red Hat, Fedora, CentOS)

Project Tools: Jira

Database: Oracle 9i/10g, SQL, PLSQL

Web Technologies: HTML5, CSS, JavaScript, jQuery, PHP.

PROFESSIONAL EXPERIENCE:

Unix/Linux Administrator

Confidential, New Jersey

Responsibilities:

• Responsible for maintaining and administering around 4000+ servers of Linux and Unix.
• Using the Internal Terminal for different issues such as PRQS, DRQS, Ticket Monitoring, Package Installation, Monitoring tools Etc.
• Perform daily administration tasks to ensure maximum system performance and continuous availability.
• Utilize custom internal ticketing system to provide customer support.
• Monitoring Control-M for the perfect operation of schedule changes and operations.
• Automated the process of adding the top utilized files in disk space alerts produced by the Monitoring tools.
• Automated the decommission process by validating the status on every stage of commands.
• Working on the source control using GIT for committing, reverting and pull request.
• Identify and troubleshoot hardware failures on servers.
• System storage issues including file systems, disk management and RAID
• Troubleshoot local area network (LAN) connectivity issues and re-establish remote access to customer
• Monitoring log files, backup, software upgrades, configuration changes and documentation
• Engaged different teams, in house and external, for prompt resolution to customer’s issues
• Configured SSH Password-less authentication between servers using RSA and DSA keys
• Installed RPM packages on Linux Servers using YUM.
• Adding, Extending and Shrinking of filesystems using Logical Volume Manager (LVM).
• Patch Management in RHEL 6. Using established guidance and processes.
• Helped in creating RHEL 7 builds using kickstart profiles.
• Involved in a Team to develop compliance audit scripts.
• Keep a very detailed documentation on issues for other team members to use.
• Creating and Fixing the Bash and Pythons scripts, as required on documentation provided by other team members or management.
• Management of UNIX/LINUX user accounts, groups, directories and file permissions

Systems Engineer

Confidential, Michigan

Responsibilities:

• Responsible for Installing, upgrading and administering the RHEL (5/6), SUSE (10/11/12) OS on Physical and Virtual Machines.
• Monitor and work on Incidents via Service Now.
• Some of the OS tasks include managing user accounts, permissions, file-system usage, storage allocations, patching, security hardening and compliance.
• Migrated the RHEL 5.x Server from old version to new RHEL 6.x.
• Manage and configure LVM.
• Installed RPM packages on Linux Servers.
• Working with the hardware vendors and application team for the faulty replacement and planning the outage accordingly.
• Plan and implement server upgrades, maintenance fixes, and vendor-supplied patches.
• Worked with ASM disk addition to Oracle DB in Linux physical server and Virtual Machines.
• Actively participated in Performance and Troubleshooting issues.
• Providing exceptional availability, scalability and security of services.
• Managing the configurations for more than 4000 servers using Chef.
• Addressing the vulnerabilities and compliance audit and remediate them via scripts.
• Worked with package management using yum and YAST on SUSE servers.
• Create utility scripts to perform automated and manual backup/restore processes. Automating with scripting tools like Shell Scripting, Red Hat Satellite, and Web design.
• Building and deploying VM Linux Using Templates.
• Participate in technical research development to enable continuing innovation within the infrastructure.
• Worked on Root Cause analysis for business-critical scenarios and issues.

IT Support Engineer

Confidential

Responsibilities:

• Install configure and patch the Unix/Linux operating systems on Physical and Virtual Machines. Support various flavors of Unix/Linux (Red Hat/Solaris).
• Monitoring the Nagios alerts and assign incidents to the right team.
• Working on the L1/L2 incident activities and changes.
• Looping the Senior admins to fix the issues.
• Perform daily administration tasks to ensure maximum system performance and continuous availability. Monitor and work on Incidents via Service Now.
• Worked with other teams in fixing the hardware firmware upgrades for lower environment servers.
• Some of the OS tasks include managing user accounts, permissions, file-system usage, storage allocations, patching, security hardening and compliance.
• Solving business requirements, including scope definition, requirement analysis, functional and technical design and application build, product configuration, UAT support and production deployment. Ensure delivered solutions are realized in time frame committed.
• Create utility scripts to perform automated and manual backup/restore processes. Automating with scripting tools like Shell Scripting, Red Hat Satellite.
• Building and deploying VM Linux Using Templates.