SUMMARY:

• Over 7 years of experience specialized in System Administration working on Redhat Linux, CentOS and windows environment
• Well - versed in Installation, Configuration and Maintenance of Linux and Sun Solaris
• Experience in maintaining Vcenter and Exsi 5.0 in a VMware virtualized environment
• Upgrade and configure Redhat Linux 4.x, 5.x, 6.x using Kickstart Servers and Interactive Installation
• Work with Database Administrators to tune kernel for Oracle Installations
• Create and manage user accounts, security, rights, disk space and process monitoring in Redhat Linux
• Administration of NFS, DNS, LDAP, HTTP, DHCP, ftp, remote access management and security troubleshooting skills
• Windows administration, Installation, Configuration and maintenance of windows server 2003/2008
• Apache Server 1.x, 2.x, & Tomcat 3.x, 4.x experience
• Administration of VMware Infrastructure Client 3.5 VSphere 5..5
• Installation and creation of Oracle database
• Experienced in scheduling jobs and administrative tasks using Cron
• Skilled user of various tools like up scan, Nagios to check for security vulnerabilities, and alerts
• Utilize Bash and Perl scripts to automate system administration tasks
• Experienced monitoring, troubleshooting network related issues in Unix/Linux environments
• Tivoli Administration, Netcool Omnibus Monitoring, Tivoli Storage Management.

TECHNICAL SKILLS:

Operating Systems:: RHEL3/4/5/6/7, Solaris Release 2. 10/2.9/2.8 Ubuntu 14.04 TSM, TIVOLI NETCOOL

Network Protocols: DNS, NFS, DHCP, NTP

PROFESSIONAL EXPERIENCE:

Tivoli Net cool Engineer

Confidential, MD

• Accessing Net cool/Impact, Populating the event record with customer-specific data, Verifying the data model, Examining the policy, Examining the Event Reader, Generating synthetic events, Observing dashboards, observing the default event view, Creating Event view, Creating the Event Filters, Analyzing WebSphere Application Server log files, Verifying configuration objects, working with related events, Viewing grouped events, Starting the network simulator, Discovering devices with Network Manager, Configuring polling, modifying the default chassis ping policy, using the topology editor, working with configuration manager, Working with Compliance manager, modifying a router configuration, Detecting out of band changes.

TSM Administrator

Confidential

• Manage the backup and restoration of systems using Tivoli Storage Manager (TSM)
• Install, maintain, update and administer TSM.
• Daily corporate backups using TSM software and monitoring of schedules for failed and missed backups.
• Disaster Recovery (DR) preparation and testing
• System Administration of AIX operating system, IBM Storage, Data Domain Virtual Tape Libraries, and IBM LTO Libraries
• Fine - tune and troubleshoot TSM environment for optimal performance and resolve complex issues in a timely manner.
• Diagnose TSM platform issues (server and client side) and provide Support in complex, business-critical environment including physical and virtual infrastructure.
• Produce basic project plans, root cause analysis documents, change/risk assessments, and product management documentation.
• Create and update documentation including daily backup reports.
• Evaluates and applies software upgrades and support packs as required to solve production problems and/or ensure compliance and system integrity.
• Consults with senior engineers while working with infrastructure and applications teams to troubleshoot complex problems, providing root cause analysis and remediation to mitigate future

Linux/Software Administrator

Confidential, MD

• Provide administrative and technical support to critical application servers, including troubleshooting, performance tuning and monitoring production servers with tools like Nagios and Linux commands
• Responsible for the administration and maintenance of production software: Revolution R Enterprise 7.1(R version 3.0.2 "Frisbee Sailing") and Active Python 2.7.6.11 on Red Hat Enterprise 6.4
• Implementing new features, configures and customize new and existing software products, creates and maintains software/ file security (internal and external), develops automatic routines to enhance production tasks eliminating manual intervention tasks
• Modify, maintain, improve and troubleshoot existing software.
• Work with vendors (on-shore and off-shore) to customize new software, heavy customer interaction.
• Work with Data Science team to deploy codes on production servers
• Coordination of global support with Science IT
• Use essential tools for handling files, directories, command-line environments and documentation.
• Configure local storage file systems within partitions and logical volumes
• Deploy, configure and maintain systems, including software installation, updates, and core services, patch management support and application verification.
• Manage users, groups, including use of a centralized directory for authentication
• Writes bash scripts, to report file system utilization, and to back up essential files and directories
• Interface with model teams for level 2 support
• Manage Revolution R Packages Repositories and CRAN administration

Environment: Red Hat Enterprise Linux, Solaris, Windows, apache, VMware Exsi 5.0, nfs, Dns, environment is 75% virtualized

Linux/Unix system Administrator

Confidential, Md

• Created Linux Virtual machines, templates using VMware virtual client 3.5 and migrating servers between ESX hosts.
• Managed systems routine backup, scheduling jobs, enabling cron jobs, enabling system logging and network logging of servers for maintenance.
• RPM and YUM package installations, patch and other server management.
• Created physical volumes, volume groups and logical volume.
• Installed and configured and managed VMware ESXI 5.0 hypervisor
• Created and managed user and group accounts, security, rights, disk space and process monitoring in Solaris and Red Hat Linux.
• Installed and configured Apache and supporting them on Linux production servers.
• Troubleshoot the network issues and response problems.
• Installed and configured Logical volume manager-LVM and NetBackup.
• Worked with Nagios Network management and System monitoring tools.
• Documented all the setup procedures and System related Policies (SOP's).
• Configured DNS, NFS, NTP, ftp on Linux servers.
• Utilized Bash scripts to automate system administration tasks.
• Installed firmware upgrades, kernel patches, systems configuration, performance tuning on Linux/Centos systems.
• Created Linux virtual Machines using VMware virtual center, VSphere client...
• Provided 24/7 technical support to Production and development environments
• Backing up servers before applying patches
• Experience generating documentation on processes

Environmen t: Solaris, Red Hat Linux, Apache, VMWare, NetBackup, Nagios, RPM, Yum, DNS,NFS, NTP, FTP Drupal 7

Linux/Unix System Administrator

Confidential

• Installed Implemented and configure VMware ESXi server 4.0 on HP ProLiant DL 360G5 to promote virtualization.
• Installed Red Hat Linux 5 and CentOS using kick start on HP, dell and sun servers.
• Oversaw the tuning and performance monitoring of HP-UX/Linux servers and peripherals.
• Provided monthly maintenance on various Linux and UNIX flavors (Suse, Red Hat, Centos).
• Utilized puppet for system configuration
• Experience in writing shell scripts to automate the administrative tasks and management using cron.
• Installed firmware upgrades, kernel patches, systems configuration, performance tuning on Unix/Linux servers.
• Created and managed user and group accounts.
• Configured DNS, NFS, ftp, remote access, and security management.
• Participated in on call rotation to provide 24/7 technical support for Linux infrastructure.

ENVIRONMENT: Red Hat Linux, Apache, VMWare, Yum, RPM, DNS, NFS, NTP

Network Administrator

Confidential

• Installed and configured windows servers
• Worked with network engineers to automate the bank's workload provided technical support to assist in training employees to better understand working with hardware and software
• Actively involved in all decisions by the IT department to link all the 153 branches together through network
• Performed system configuration, patches, troubleshooting and backup and recovery
• Created and managed numerous user accounts and provided security to the systems