SUMMARY:

• 6+ years' Experience as a Unix/Linux, Aix, Solaris, Windows System Administrator.
• Experience in Red Hat Linux, Linux Server builds, which includes Installing, Upgrading, Patching, Configuring and Performance tuning on UNIX/Linux system software and hardware.
• Experience building Hadoop clusters infrastructure OS Builds on Dell, Hp Servers.
• Shadowed Hadoop Admins using cloudera manager, Horton Works Building Hadoop Clusters.
• Experience in designing, managing, and supporting HP Blade Servers, (Microsoft Windows Server, and Active Directory.
• Design, install, and configure VMware vSphere5.5, ESX 5.5, VMM, Hyper - V, and environments with Virtual Center management, Consolidated Backup, DRS, and HA.
• Design, implement, and create LUN's using EMC Navisphere on EMC CLARiiON hardware.
• Demonstrated ability to work well with a wide variety of people at various levels, faster Cooperation and Collaboration among individuals in the work unit, help team resolve conflicts constructively and ability and Willingness to communicate when help is needed.
• Experience in Networking configuration & Security Configuration on ESXi Host.
• Experience in Kick start installations using PXE with NFS, HTTP and FTP protocols to deploy.
• Expert in daily management and configuration of Nagios Monitoring Servers.
• Working Experience in Relational Databases (RDBMS) like MySQL, Oracle and DB2.
• Experienced in various Operating Systems: Windows NT, XP, 2000, 2003, Red Hat Linux5, 6, Suse Linux, CentOS and Ubuntu.
• Experience with working in Production, Development and QA environment.
• Experience in RAID configuration and redudancy.
• Expert in setting up SSH, SCP, Sftp connectivity between hosts.
• Trained in Confidential Linux, Suse Linux, VMware, AIX, Solaris, Database Administration.
• Experienced in DHCP, DNS, NIS, NFS, SMTP, IMAP, ODBC, FTP, TCP/IP, LAN, WAN, LDAP, KERBEROS remote access, security management, and system troubleshooting skills.
• Strong in LVM (Storage Methodology), Performance monitoring, Error logging, Diagnostics, Fine-tuning and Backup management
• Team player with excellent communication and inter-personal skills.
• Worked on Nutanix an Enterprise Virtualization and storage.
• Capable of quickly learning and delivering solutions as an individual and as part of a team.

TECHNICAL SKILLS:

Operating Systems: Linux(Redhat5,6/SUSE11),Centos, AIX, Solaris 10, Windows 5.5

Hardware: IBM Blade Server HS22, Dell Power Edge Series, Cisco UCS blade servers, HP BL460, C7000. ILO, Sunfire T2000, Nutanix

Application Server's: Apache, Python, DNS, NIS, NFS, MS Terminal Server, Windows r2,Active Directory, Jboss, Microsoft IIS Server4/5, Symantec Ghost, mail serverDatabases/ scripting Oracle 9 10g, 11 g, bash Shell scripting, Ksh Scripting, Perl Scripting, Html

Storage/ Networking: EMC ISCSI SAN, FC SAN, NAS, EMC Clarrion, Cisco Router, Cisco Catalyst Switch, Nutanix, Arista Switches.

Monitoring: Nagios Monitoring System, Nimsoft.

Backup: Symantic NetBackup, and Linux Backup Resync.

Languages: C, C++, Java, J2EE

WORK EXPERIENCE:

Sr. UNIX System Administrator

Confidential, Newark, NJ

Responsibilities:

• Project implementation through the full project life cycle, vendor management, budget meetings and contract negotiations, Interfacting with client and senior managers for large multi-team global projects.
• Worked in coordination with administrators, engineers and team leads for designing and implementing VMware High Availability (HA) cluster across several virtual machines and ESXi hosts.
• Ensured high efficiency and performance of virtual machines by implementing VMware Distributed Resource Allocation (DRS) in a cluster environment.
• Responsible for creating Virtual Templates and also Host Profiles and use them for deploying more virtual machines and bringing in more hosts respectively.
• Installed, configured and updated VMware Update Manager for patching ESX iand keeping the software levels up-to-date.
• Creating, Cloning Linux Virtual Machines, templates using VMware Virtual Client 5.5, VMM, and Hyper-V and migrating servers between hosts.
• Configured multi-server virtual environment using VMware's ESX product, handling many VM's. Uses consist of production servers, utility servers, and application servers interact with the SAN team to get the storage allocated for HP BL series and DL series of servers.
• Builds, installs and tests Windows, Linux, and VMware servers based on requirements from Design and Architecture or established standards.
• Work with engineering and application support for complex issues and worked closely with the Firewall and Network vendors.
• Experience in Monitoring and Administering Operating Systems such as RHEL 5, 6, and Red Hat Linux Cluster Services on HP DL385/380, BL460c and Solaris 10 SPARC Servers.
• Work with partners during change control activities to ensure smooth migrations and implementations, including performing change tasks.

UNIX System Administrator

Confidential, El Segundo, CA

Responsibilities:

• Manage and administer a large number of Red Hat linux servers and open source software packages.
• Manage open source patch management and status monitoring systems.
• Install and configure security sensors comprised of open-source centos linux platform as well as purpose-build Confidential flow collector appliances.
• Work with state entities to integrate new log sources into SOC monitoring as well as maintain and monitor existing log sources.
• Perform computer forensics investigations on Linux, OSX and Microsoft clients and servers following processes defined in the state's established incident response procedure.
• Installation of Linux OS, with software's Talon, Watchdog censor and Flow Collectors at State Agencies.
• Work with SOC team to identify and document improvements in incident response processes. Disseminate incident response process revisions to stakeholders within the Division of Technology (DT) and state agencies.
• Validate that security and privacy controls and reporting meet established standards.
• Working with incident response, industry standard forensics tools and processes, and SIEM log and flow correlation Of computer and network operating system fundamentals (e.g. operating systems, applications, storage, and networking.
• Travel to State Agencies, install new Hardware, Upgrades, maintenance, data flow diagrams, Label servers, network cables, Document, Tasks done at client Location
• Snort update on Staging, production, Development servers.
• Server monitoring using Nagios monitoring System.
• Packages Update through Confidential Spacewalk
• SEIM Monitoring log Sources.
• QRADAR IBM Servers Installations.
• Migration on Servers, Rack Mount, Stack, Networking, adding servers, Nagios Monitoring tool.

UNIX Administrator

Confidential, Atlanta, GA

Responsibilities:

• Linux, Solaris, AIX, VMware and Microsoft Windows 2012r2 Support Admin for a High Availability Environment.
• Implementation of UNIX-based (Solaris, SUSE, Confidential Linux and AIX) servers in medium to large enterprise environment.
• Worked on CA Layer 7 API installation and Configuration on Suse Linux 11 SP3.
• Worked on Building Infrastructure for Hadoop clusters on HP, Dell Servers and provided Support.
• Worked on Nutanix an Enterprise Virtualization and storage, Created Cloud environment and build Hadoop Clusters on Virtual Servers.
• Troubleshooting, diagnosing tuning and solving Hadoop related cases, Managing and reviewing the Hadoop log files.
• Hadoop cluster planning and maintenance
• Monitoring and managing Hadoop cluster using Cloudera manager.
• Delivery Management of infrastructure projects, worked on business needs, costs, solutions on reengineering and automation of business processes.
• Worked on Microsoft Cloud, TeraBytes of storage did Linux customization on VMM, Hyper-V VMs building RAID configurations and providing Storage to Clients.
• Shadowed Hadoop Admins using cloudera manager, Horton Works Building Hadoop Clusters.
• Maintained the HP Blade server Hardware virtualization, Installed and maintained the C7000 series of HP Blade enclosures.
• Installed and maintained the C7000 series of HP Blade enclosures, Automated Kickstart Scripts for Server Builds.
• Collaborated with the, Hitachi, NetApp teams for the storage requirements in Blade and Brick Hardware.
• Escalation point of contact for performance related issues on servers and applications for the operations and engineering team.
• Performing day-to-day monitoring tasks and administration implementations while monitoring HP Service Center, and performing RHEL LVM changes, adding Users in Active Directory and Exchange Server.
• System Network configuration, PAM, tcp wrappers implementation, SELinux policies, FTP server setup, OpenSSH configuration, Digital Certificates, Define Firewall and security requirements and policies, Coordinating with application developers and users.
• Experience of fiber SAN/iSCSI SAN/NAS (EMC (CX30), NetApp, Dell MD30001 Dell MD 1000,) storage technology and work with SANs in RHCE environments and troubleshooting SAN related issues and upgraded firmware of SANs.
• Create and Modify file systems, Logical Volume, Physical Volumes, Volume Group. Migration of Logical volumes across PVs in same VG, Copy LV's between VG's.
• Managing day-to-day operation by monitoring Enterprise Data Centers and applications.
• Shell scripting, job automation and performance monitoring and maintenance.
• Bash scripting for regular system automation tasks, resource monitoring and system performance monitoring.
• Experience on End to End process including ordering hardware, installation, configuration and decommissioning of the servers.
• Configured NTP, YUM Server, Net Console, Syslog Server, Clustering.
• Write the scripts for taking server H/W information
• Experience of working on high priority incident ticket (P2, P3) with high critical deadline, interacting directly with the client, continuously involved in meetings.
• Prepared Run books for OS builds, SAN, Hadoop Installations.

UNIX Administrator

Confidential, Winston-Salem, NC

Responsibilities:

• Confidential Enterprise Linux 5 Installation on HP Proliant servers using kickstart and configuration & support for various applications run on Linux environment.
• Installation of Quest software on 4000+ Aix, Linux, Solaris Servers, Tripwire Install on SOX Servers.
• Involved In Operating System upgrades of Aix, Solaris, Linux Servers.
• Worked on VMware Virtual Center Server for centralizing ESX and ESXi servers.
• Day to day duties for Unix/Linux server maintenance and support to developer's team for their issues with application, tuning, troubleshooting, software running on Unix/Linux Servers.
• Support and troubleshooting of Linux Apache, MySQL, Have knowledge on MySQL, Oracle Database Administration.
• Involved in 24x7 supports for both production and development databases with on-call pager.
• Support of multi flavor UNIX environment Linux and Windows with various responsibilities.
• Setup and configured network TCP/IP at all levels on Linux servers
• Implement the Windows Active Directory for the Domain Administer of Win 2003 Domains.
• Deployments, Drive Application Release Task Plans, Handle Application Outage if any Invite all team to bring the application up and running.
• Experience working with Akamai to load balance traffic and fail over traffic across different data centers and content caching for all web applications hosted through Akamai.
• Troubleshoot complex application and system performance problems across multiple tiers.
• Receive escalated support tickets from tier 1, operations and tier 2 to resolve these tickets and look for root cause.
• Lead technical conference calls in outage situations, drive the overall call, and resources to resolution.
• Deploy applications to production and confirm proper operations.
• Work with development teams to document and automate deployment procedures for handoff to tier 1 team.
• Applying operating system updates, patches, and configuration changes.
• Install and configure new java software such as Resin, Tomcat, WebLogic, and WebSphere.
• Work with Development teams to onboard new applications, configure monitoring, update and approve documentation and adhere to standards.
• Performed WebLogic Server and Portal administration tasks such as installing, configuring, monitoring and performance tuning in both the UNIX and Windows based platforms.
• Worked extensively on Solaris, Linux, and AIX and Windows platforms for different applications.
• Performed J2EE application deployment and administration including WAR, and EAR files.
• Developed and maintained Shell scripts that facilitate the Administration of BEA WebLogic Server 6.0/7.x/8.1/9.x/10.x and WebLogic Portal 10.3.0.
• Created Crontab scripts for timely running jobs.

UNIX System Administrator

Confidential, Denver, CO

Responsibilities:

• Confidential Enterprise Linux 5 Installation on HP Proliant servers using kickstart and configuration & support for various applications run on Linux environment.
• Installation windows AD server, Installed Weblogic.
• Supporting Solaris, Linux servers in production/stage/development environment.
• Unix/Linux user's creation, file/dir level permissions, Sudo permissions etc.
• Installation and creation of 9i and 10g databases for Testing, Development and Production.
• Installation of Oracle version 10g on Solaris 10 and HP-UX11.
• Installation of Clearcase Version Control system, Testing.
• Os Migration from Confidential 4,5 To Suse Linux 11 Sp2, Sp3 according to client requirements.
• Experience in Identifying performance bottlenecks on high volume transaction systems. Analyze SQL statements, reorganize database objects and design indexes to improve response of queries.
• Perform system trouble-shooting, performance tuning and capacity planning.
• Use VSphere vCenter Server to monitor virtual machine resource usage.
• Applying operating system updates, patches, and configuration changes.
• Install and configure new java software such as Resin, Tomcat, Weblogic, and Websphere.
• Perform tuning of java applications and JVM health.
• Work with Development teams to onboard new applications, configure monitoring, update and approve documentation and adhere to standards.
• Shadowed Confidential Cluster Build on oracle Linux, Installation of Zabbix, Splunk.
• Performed WebLogic Server and Portal administration tasks such as installing, configuring, monitoring and performance tuning in both the UNIX and Windows based platforms.
• Worked extensively on Solaris, Linux and Windows platforms for different applications.
• Worked closely with database administration staff to ensure optimal performance of databases, and maintain development applications and databases.
• Involved in management of 100 Server and 200 Virtual Machines.
• Shell (ksh, bash) scripting for various admin related jobs.
• EMC (LUN creation, assigning and mapping)
• Design and implement Backup Policies.
• Support to any issues coming on Linux servers and for applications, which run on them.
• MySQL and Oracle Database installation and Monitoring on Linux using Nagios.
• Troubleshooting all kind of apache, Tomcat and PHP issues.
• Managing volumes in Linux by LVM.
• Experience in setting Linux Confidential Cluster Suite (4 node cluster).
• Configuring and managing Cluster instances for MYSQL and Oracle database.
• Experience in configuring LUN on EMC storage, assigning them to proper storage group and making them visible to operating system.
• High Performance Cluster using the platform computing software using Red Hat operating system.
• Played role as a Vmware, Solaris, and Linux Admin to provide L2 support in a complex Environment.
• Performed connection diagnostics in order to access route specifics and diagnostics from the switching infrastructure.
• Also concerned with every day growth and Inspections to make sure quality and goals were being met.
• Provided operational Documents to make the Environment more convenient.