SUMMARY:

• A Certified Solaris/ Linux System Administrator with 10+ years of experience in Information Technology which includes 10+ years of focused experience in System Administration, System Builds, Server Provisioning on Linux ( Red Hat and SuSE) and played roles of Server and system architect, Installs, Upgrades, Patches, Configuration, Performance tuning on UNIX, system software and hardware.
• Involved in complete server administration and architect tasks on Linux (Redhat and SuSE) and documentation for the projects executed.
• Experience in understanding server requirements and design and d infrastructure for projects.
• Managed concurrent initiatives in fast paced and agile environments.
• Successfully managed and implemented enterprise - wide Infrastructure projects across multiple LOBs.
• Installed, monitored and supported Web and Application Servers on Solaris and Linux environments.
• Experience in using VERITAS Volume manager, SVM and LVM.
• Experience working with Storage Area Network (SAN), EMC CLARiiON, EMC Symmetrix DMX.
• Experience in Performance monitoring, usage and load of the system.
• Experience with VMware ESXi 3.5/4/5, and worked in environment containing Solaris zones/containers and AIX frames and LPARs.
• Experience in installing VMWare ESX, patching ESX and involved in upgrades on enterprise servers.
• Creating and maintaining users, profiles, security, rights, disk space and process monitoring.
• Experience in Networking, NFSand TCP/IP.
• Experience in using Veritas Net Backup and backup related policies and procedures.
• Experience working with Perl, shell scripting (ksh, bash) to automate administration tasks.
• Good working knowledge of network & UNIX security procedures.
• Excellent communication and strong interpersonal skills with ability to interact with end-users, managers and technical personnel.
• Working knowledge of Puppet and Splunk.
• Provided production support in an on-call rotation in a 24x7 environment.

TECHNICAL SKILLS:

Operating Systems: Red Hat Linux 4.x/5.x/6.x/7.x, Suse Linux 9.3/10/11, IBM AIX 5.x, VMware ESXi 3.5, VMware vSphere 4.0/5.0, Sun Solaris 10/9/8

Hardware: UCS Blades, HP- Servers, Dell Servers, IBM Blade Center, Sun Hardware, EMC CLARiiON, Symmetrix, NetApp

Web & Application Servers: Apache, IIS 3.0/4.0, Web Logic Server 8.1, WebSphere Application Server 5.0

Languages: Shell scripting, PERL, C, PL/SQL

Databases: Oracle 10g/9/8, Sybase 11.5.1, POSTGRESSQL, MYSQL

Networking: TCP/IP, DNS, NFS, NIS, SSH, DHCP, Cisco Routers / Switches and LAN

Tools: Chef, Ansible. Spacewalk, Red Hat Satellite, Suse Manager, ServiceNow, Zabbix, OSSEC, Graylog, IT Service management, nmon, netstat, Wireshark, syslog, FTP, F5, Tivoli, Nagios, Zabbix, auditd, SAR

PROFESSIONAL EXPERIENCE:

Confidential, Albany, NY

Senior Linux Administrator

Responsibilities:

• Followed processes and procedures for new server builds. Bootstrapped new VMware vSphere ESX hosted virtual machines created from clones. Installation and configuration of tools as needed.
• Provisioned new user and application accounts and application file system space on red hat enterprise Linux servers. Access permissions are delegated for users with sudo and ACL file permissions.
• Created shell scripts for repeatable tasks to achieve automation where possible. Performed yum installations and rpm installations for system and application related packages. Generated SSL certificates.
• Performed day to day complete system administration tasks on red hat enterprise Linux servers.
• Used various system tools for installation, configuration, monitor, administration and support of systems.
• Decommissioned Linux servers using standard operating procedures and updated ITSM CMDB.
• Requested virtual machine cloning for server builds. Took vm snapshots for quick restore purpose before every CHG control and/or before any changes to system configurations or installations.
• Reviewed VMware vMotions events on VM’s as part of system administration support and monitor tasks.
• Used chef tool for automation routines to centrally configure large data center Linux based servers.
• Created new chef cookbooks and new chef recipes for sudoers implementation.
• Updated roles, environment and other variables from chef knife workstation and chef web console.
• Installed Zabbix agent on redhat enterprise Linux servers. Reviewed Zabbix logs and Zabbix events on console in troubleshooting the system down false positive errors. Uninstallation of Zabbix agents.
• Used Zabbix console monitoring before and after stealth agent install to review and monitor the Linux management agent tools communications with the enterprise Linux servers.
• Reviewed Zabbix server properties with a goal to architect new automation routines to monitor and support all the enterprise Linux servers and to classify the servers according to agency or cluster.
• Reviewed OSSEC architecture, logs and Graylog architecture and logs for learning, support and monitor.
• Provided additional support to patching team as needed to centrally patch large Data Center Linux based infrastructures. Used Spacewalk and Redhat Satellite to patch servers. Manually installed patches using yum installations and to monitor when automation routines didn’t go through as part of exceptions.
• Performed problem resolution, debugging, troubleshooting and monitoring using various tools like nmon, netstat, syslog. Used Wireshark to capture tcp dumps for troubleshooting sessions.
• Configured virtual IP’s (VIPs) on Linux servers to be used by application and/or databases. Created NFS shares, updated exports configuration and exported the NFS shares. Mounted NFS shares from client side.
• Updated DNS and NTP configuration files on the Linux servers as needed. Opened x window sessions to Linux servers and monitored the x window session activities during any custom vendor installations.
• Worked with multiple agencies and clusters and interacted with customers and worked in project groups.
• On a daily basis, worked on incident management, change management, and service catalog management within ITSM and ServiceNow IT services. Provided on call support as part of rotation schedule.
• Installed apache, MySQL, PHP, and upgrades of apache and PHP on enterprise servers.

Environment: RHEL 5.x,6.x,7. Suse Enterprise Linux 9, 10, 11. Chef, Ansible. Spacewalk, Red Hat Satellite, Suse Manager, VMware vSphere ESX, ServiceNow, Zabbix, OSSEC, Graylog, IT Service management, Tivoli, nmon, netstat, WireShark, auditd, SAR, syslog, VLANs, VPNs, TCP, UDP, IP, DNS, NTP, NFS, X-window, Apache, MySQL, PHP, JBoss, WebSphere, MQ, Oracle, Drupal, Filenet, Siteminder, LDAP, Reverse Proxy, FTP, Forum Sentry, SOA, firewall, F5.

Confidential, Dallas, TX

Technical architect

Responsibilities:

• Installation, configuration and provisioned servers with Redhat 6/5.x
• Involved in the Bladelogic upgrade project from version 8.0 to 8.2
• Architect Bladelogic server version upgrades. Administered development, test and production Linux servers and worked on Service center incidents and Remedy tasks and Work orders.
• Build servers, installed tools, configured and provisioned servers as per application requirements.
• Experience using kickstart and modified kickstart based on server profiles and hardware specifications.
• Created volume groups, logical volumes, extend volumes etc with Linux LVM.
• Maintained user profiles and access permissions to systems and applications as well using sudoers.
• Performed daily health check, monitored servers and day-to-day system administration tasks.
• Created scripts to automate provisioning of servers and used/modified kickstart to build enterprise servers.
• Took part in document review process for the installation procedures, and Standard Operating Procedures (SOP) documents. Uploaded documents to internal wiki website.
• Supported, and performed primary Responsible and Accountable duties for core infrastructure hosting Bladelogic is hosted and performed core responsibilities.
• Imported thousands of servers into Bladelogic console and troubleshooting agent configuration errors.
• Created patch repositories and defined patching profiles based on customer policies and requirements.
• Troubleshooting patch analysis jobs through staging, remediation and deployment phases.
• Created compliance scripts to in corporate into bladelogic based on Custom compliance requirements.
• Generated daily / weekly reports on transition related tasks for new transition projects.
• Coordinated various day-to-day and project related tasks with DBA’s, web admins, and network and storage administrators. Troubleshooting network and storage components and connectivity.

Environment: RHEL 6/5/4.x, Suse Linux 11/10/9, vSphere 4.0/5.0, HA, Dell Poweredge R 410/610/710/905/910 , AIX p5, Cisco UCS, Netapp, Bladelogic, Graylog, Netbackup, OSSEC, SAR, auditd, Oracle 11g/10g, Web Logic, PHP, netstat, Wireshark, Tivoli, syslog, Apache.

Confidential, St Louis, MO

Technical Delivery Architect / Linux Engineer

Responsibilities:

• Responsible for Architect, assessment, design and construction of UNIX and LINUX servers.
• Installation and configuration of operating system on bare metal physical hardware installations.
• Installed ESX and participated in patching of ESX enterprise servers.
• Created Virtual Machines on VmWare ESX hosts, and maintenance activities at the VM level and host level. Created policies at host and VM level for compliance with license requirements.
• Successfully completed implementing, architect over 150 Infrastructure projects for various business organizations globally and managed Infrastructure projects using IPM process.
• Gathered server infrastructure requirements from project stakeholders and participated in design meetings to provide the optimal solution. Architect, acquired, built and implemented systems according to documented processes. And supported UNIX and Linux servers. Yum installations and rpm installations.
• To architect, build, configured and provisioned servers and installed operating system on about 900 servers involving Suse and Redhat Linux virtual machines, physical servers and AIX LPARs (Logical Partitions).
• Installed various tools/packages for security compliance, performance monitoring and automation etc.,
• Participated in Life Cycle Management of servers and coordinated with application teams in migrating applications to new servers and also in planning for LCM activities.
• Worked on oracle database migrations from HP-UX to IBM AIX and application migrations from Sun Solaris to Linux operating environments.
• Created shell scripts to automate daily tasks and reviews shell scripts for application and database teams.
• Architect new Netbackup environment in DMZ layer and upgraded backup infrastructure at remote site including master/media servers and tape library. Installed netbackup agents on UNIX/Linux servers.
• Built server infrastructure for various Proof of Concept (POC) and Production Pilot projects and coordinated with multiple teams and Vendor to build out a test plan and implementation.
• Worked with internal customers and application teams in bringing their applications to standard supportable hardware platforms.
• Participated in physical to virtual conversion (P to V) of Suse and Redhat Linux servers.
• Created necessary architecture diagrams, project plans, milestones, defined and documented proposed solutions.
• Worked with various GIS groups to evaluate equipment to purchase for enterprise-wide projects.
• Worked with vendors to get server and software quotes and created cost estimates for projects.
• Co-ordinated various IPM activities closely with procurement, facilities, and multiple infrastructure teams for projects from inception to completion.
• Worked with applications and DBA teams during project construction, readiness and production phases.
• Performed production readiness checklist review and troubleshoot issues on server builds prior to server going into production to proactively identify and eliminate production impact outages and issues.
• Periodically participated in on-call rotation.
• Researched new technologies and hardware and presented recommendation of new hardware.
• Assisted junior members with solution design and implementation.
• Implemented various server change control activities as needed for server maintenance and administration, following standard Change Management procedures.
• Took the responsibility of cleaning the assets in CMDB that went out of sync with their actual status.
• Learned and installed windows 2003 and 2008 server environments.
• Build out and implemented server infrastructure and solutions for various enterprise-wide projects including Compute farm and weblogic expansion projects.

Environment: Suse Linux 11/10/9, Redhat 5.3/4.6, AIX 5.3, vSphere 4.0/5.0, Dell Poweredge R 410/610/710/905/910 , AIX p5, Cisco UCS, Netapp, Bladelogic, Netbackup, Tiger, ITO, Zabbix, Oracle 11g/10g, Web Logic, PHP, nmon, Apache, VIP’s.

Confidential, Chicago, IL

Redhat Linux/Suse Linux System Administration

Responsibilities:

• Installed, configured and provisioned servers with Redhat 5.x and Suse Linux 9.3.
• Installation and configuration of operating system on bare metal physical hardware installations.
• Involved in R0 project migration of servers from Suse 9.3 to Redhat 5.3 and from Weblogic 8 to Weblogic 10, and build out of environment for JBOSS enterprise servers. Yum installations and rpm installations.
• Administered Linux development, staging and production middleware gateway servers, development and staging weblogic servers hosting mission critical and business critical applications.
• Created shell scripts to automate daily tasks and reviews shell scripts for application and database teams.
• Build servers for/at Disaster Recovery Site for weblogic and middleware PCI environments.
• Experience using kickstart and modified kickstart based on server profiles and hardware specifications.
• Veritas Cluster Server 5.0 installation and administration. Installed Maintenance Packs (MP) and Rolling Patches (RP) and configured veritas service groups, resources etc.
• Patched servers, connected to RHN, worked as a team to discuss the feasibility of satellite server installation on site to provide/help for patch updates. Used yum repositories for rpm install and updates.
• Installed Veritas Storage Foundation for Cluster File System and created disk groups, volumes using Vertitas Volume Manager, created file systems and set up environment for weblogic/ applications.
• Maintained user profiles and access permissions to systems and applications as well using sudoers.
• Upgraded BIOS, memory on HP proliant servers, ran HP diagnostics tool to identify any hardware issues.
• Installed VMware ESXi 3.5 servers and understanding of ESXi virtualization concepts, attended VMworld 2009, experience in installing and upgrading to VMware vSphere 4.0.
• Opened cases and worked with HP and Veritas vendors on hardware and software cases/issues.
• Created and maintained environment for Proof of Concept (POC) of Oracle MDM and tibco products. Supported Oracle on Red hat Linux as part of POC and worked with Oracle DBA's.
• Installed opsware agents, SIM (System Insight Management) agents and PSP (Proliant Service Pack).
• Took part in VMware ESX 3.5 installation, updates, patches, and gathered information for capacity and performance analysis to identify potential servers for virtualization.
• Wrote perl and shell scripts to automate certain system administration tasks.

Environment: Redhat Linux 5.3/5.4, Suse Linux 9.3, SAR, nmon, VMwareESXi 3.5, VMware vSphere, HA, MQ, VERITAS Volume Manager 5.0, VERITAS Cluster Server 5.0, Opsware, Openview, HP-DL585-G5/G2/G1, IBM Blade Center HS21/22, Weblogic 8/10, Tibco, MQM, Oracle, Perl, VI client, VEA, VCS Manager, VIP’s.

Confidential, Columbus, OH

Implementation Engineer

Responsibilities:

• Installed and configured of hardware and OS (Solaris 10 and RHEL 4.6) on enterprise servers.
• Build servers, configured, installed tools, applied patches and transitioned servers to production support.
• Responsible for server migrations from closing data center including forklift and technical refresh.
• Build, configuration and deployment of 14 jumpstart servers across various data centers.
• Installation and configuration of operating system on bare metal physical hardware installations.
• Build a two-node clustered master server using VCS and connected to existing Netbackup environment.
• Build servers for infrastructure support at two strategic data centers.
• Installed KEON on new installs and 300+ production servers during the change management window.
• Installed patches to latest patch level, applied patch cluster and installed software packages as needed.
• Created disk groups, volumes, volume groups and RAIDs using VERITASVolume Manager.
• Created shell scripts to automate daily tasks and reviews shell scripts for application and database teams.
• Experience working with Solaris Zones/Containers and new features of Solaris 10, zone reconfiguration and file system layout modification of the containers supporting the Sybase database.
• Build out the KEON infrastructure by adding the Tivoli, ESM, Opsware tools etc.,
• Disk mirroring and RAID implementation using VERITAS Volume Manager and Solaris Volume Mgr.
• Installed VERITAS Volume Manager and Powerpath on Red hat Linux servers.
• Installation and configuration of Apache Tomcat server. Yum installations and rpm installations.
• Troubleshooting and analysis of hardware and software failures for various UNIX servers.
• Worked with application team to load app to servers, created test environment for Oracle DBA team.
• Provided server remediation to ensure all vulnerabilities have been addressed.
• Engaged in the Build, Test, Implementation, Application and pre-production checklist.
• Verified the disk layout and packages against the supplied build sheet and took necessary actions.
• Provided support for Opsware Server Automation System (SAS), ESM agent installation and setup and scanned agents for compliance with OS Security Standards and necessary actions to scan green.
• Installed Sun MC 3.6 agent to facilitate quick and easy deployment of Net-SNMP.
• Created a functional account on servers to be used by Tideway system to automatically gather inventory information. Cron configuration and sendmail setup.
• Experience in configuration of Tivoli agent and verified and troubleshooting of consoles.
• Created new slices, mounted new file systems and unmounted file systems.
• Documented installation procedures, changes required in present environment.
• Took part in brainstorming sessions to improve and standardize the processes followed by the implementation team globally across the organization.
• Attended team meetings, change control meetings to update installation progress, and for upcoming changes in environment.

Environment: Sun Solaris 10/9/8, RHEL 4.6, VMware vCenter, VERITAS Volume Manager 5.0, VERITAS Net backup 6.5, VERITAS Cluster Server 5.0, Spacewalk, Enterprise Security Manager, Opsware, Info Vista, Tideway, Tivoli, OSSEC, Graylog, auditd, Sun Management Center 3.6.1, Sun SPARC Enterprise T5240/T2000, HP-DL585-G5, Sun Fire v210/v440/v480, SAR, nmon, netstat, Wireshark, Tivoli, syslog, Apache, Pentium PCs, Sybase, Oracle, Perl, KEON, HA.

Confidential, Newark, NJ

Sun Solaris / Linux System Administration

Responsibilities:

• Remedy Problem & Change management application for management of problem tickets and production change requests. Provided 24x7support on shift rotation basis.
• Administered servers in heterogeneous environments which include Solaris and Linux operating environments. Delivered services within the defined SLA.
• Experience in analyzing, monitor logs, support, problem determination, and recovery and restart.
• Performed problem determination and restored service using standard procedures.