SUMMARY:

• Over 8 years of experience on various flavors of UNIX Red Hat Linux, SUSE, and VMWARE ESX System Administration, System Builds, Server builds, Installs, Upgrades, Patches, migration, Trouble Shooting, Security, Backup, Disaster Recovery, Performance Monitoring and Fine-tuning on UNIX Systems.
• Installation and configuration ESX 3.5 4,4.1 , ESXI 5,5.1 AND vCenter4 ,4.1,5and5.1
• Extensive Knowledge of VMware HA DRS ,vMotion SVMotion and Fault taulrance.
• Experience on VMware Networking Standard Switch ,Distributed Switch, Portgroups, VLAN Trunking and VLAN Tagging,
• Experience on Cloning and Snapshots Deploying VMs Windows Unix .Using Templates
• Experience in Security Hardening in Unix, Linux and Windows servers.
• Experience in using various network protocols like HTTP, UDP, POP, FTP, TCP/IP, and SMTP.
• Sound knowledge on VERITAS Cluster Server, Veritas File System, VERITAS Volume manager and Service Guard Clustering.
• Helped to establish standards, policies and procedures for all aspects of UNIX server environment e.g., configuration, administration, documentation, etc.
• Experienced in implementing the operation and maintenance of the system design and architecture.
• Experience in installation and configuration of Web Sphere, Apache, JBoss, and IPlanet, BEA WebLogic, LDAP and mail servers.
• Installed, configured and implemented the RAID 0/1/5 ,1 0 and 6 .
• Proficient in shell scripting Ksh/Csh/bash/Sed/Awk , PERL, Java Scripts for Oracle and Java Applications and XML.
• Experience using diagnostic and debugging tools such as Dtrace, Strace, truss, Top, OS tools, Bladelogic, BMC Patrol, BMC best1, Legato networker client side , Solaris Management Console and HP Insight Manager.
• Experience in installing, configuring, supporting and troubleshooting Unix/Linux Networking services and protocols like NIS, NIS ,OSPF, LDAP, DNS, NFS, DHCP, NAS, FTP, SSH and SAMBA.
• Experience in updating O/S maintenance and modification levels by applying software patches and fixes APAR's and PTF's that are downloaded from IBM.
• Proficient in System Backup and Recovery from tapes using ufsdump, ufsrestore, tar and cpio.
• Well versed in configuring Volume Groups and Logical Volumes, extended logical volumes for the system growth needs using Logical Volume Manager LVM .
• Expertise in middleware applications related to SLSE and Linux.
• Installation, Configuration and troubleshooting of system security applications like SUDO, SSH, Power Broker and eTrust.
• Independent problem solving and a good team player with strong interpersonal and communication skills.
• Experience in installing, configuring and maintaining WebSphere Application Server.
• Experience supporting 24x7 production computing environments. Experience providing on-call and weekend support.

TECHNICAL SKILLS:

WORK EXPERIENCE:

Confidential

System Administrator

Responsibilities:

• Install, configure, and administer virtual servers WWW/DB/Solr search, load-balancing, misc in Vmware, NASA Nebula EC2 , Terremark, and Rackspace
• Install, configure, and administer physical servers WWW/DB/Solr search, load-balancing, misc as needed
• Install, configure, and maintain software Operating systems, application software, etc. Primarily components consist of CentOS/RedHat Linux, MySQL, Apache, Apache-Tomcat, Pentaho Kettle
• Administer system services. Mail, DNS, cron services, etc.
• Administer user accounts and access control on the systems
• Trouble-shoot hardware, software and network related problems
• Get system and software requirements from various project teams and ensure their timely availability
• Provide assistance in selection of hardware, software and network components
• Document system related problems and their solutions. Utilize Operations Jira ticket system for daily task management, and REI Wiki for documentation. Provide weekly task summaries in Wiki.
• Perform Backups and recovery system, database, etc.
• Monitor resources on the systems disk space, memory, I/O, etc.
• Monitor, manage and update system monitoring, including Nagios, SmokePing, and Munin, both on server and clients.
• Ensure available for communication on a 24/7 in the event of a significant system issue, and available for maintenance during off-hours when designated monitoring lead.
• Assist in developing and implementing Federal security policies, including:
• FIPS-199, Risk Assessment, PIA/PTA, Configuration Management Plan
• SSP, Contingency Plan, Disaster Recovery Plan, etc.
• Monitor network, system, and web server logs to find any deviations from the security policy
• Take lead in corrective actions on finding any deviations from security policy
• Take lead in investigating security related incidents
• Keep track of the latest security vulnerabilities by browsing through security related websites and the security emails
• Perform hardening of the operating system as per the best security practices, including NIST policies and CIS Benchmarks.
• Ensuring installation of latest operating system and application security related updates and patches
• Ensure proper deployment of IPtables firewall rules and SELinux on all systems.
• Provide information for any system/security data call from the customer
• Perform vulnerabilities scanning and vulnerability mitigation every quarter and provide vulnerability reports as required by the customer. Tools include HP WebInspect, Netsparker and Nessus Professional Feed.
• Install, configure and maintain webservers and application servers such as Apache, and Tomcat.
• Install, configure and administer load balancers or similar tools, such as Varnish, Pound and Nginix.
• Deploy web and application builds as required
• Monitor availability of web and application servers using various monitoring tools including Nagios and Munin and automated scripts
• Troubleshoot webserver and application server related problems.
• Analyzing webserver logs and generating usage reports. Utilize Google Analytics and AWStats where applicable.
• Provide webserver and application server related activity reports as required
• Worked on STIGS, ISSO and DISA guides for AWS Amazon

Confidential

Senior System Engineer

Responsibilities:

• Involved In ESX Migration Project from 4.1 to 5.1 and Upgrading VMware tools and Virtual Hardware .
• Primary responsibility includes building and supporting ESX Servers/Redhat Linux 4,5 ,6 Windows servers for Enterprise Preference Management System project.
• Installing ESX ESXi Server , Network Configuration and Storage Configuration and Applying Hostprofiles .
• Installing vCenter Server ,Creating Cluster Configuring HA DRS .
• Deploying VMs FROM Template ,Post Configuration and Supporting Existing Env .
• Installing, upgrading and configuring Redhat Enterprise Linux 5.x, 6.x , CentOS 4.x on HP servers using kickstart installation, also performed manual upgrade through YUM installation
• File System Management on Linux environments
• Kernel OS patching ,installation and trouble shooting third party tools like Net backup client ,EMC power path ,Scom tool ,NetIQ software
• Performed Zone installation, configuration , migrations in Solaris 10 environment
• Involved in Planning, building and Administration of various High Availability clusters and heart beat checking s
• Experience with installation and configuration of Sun Cluster Server 3.2 in SAN Environment
• Experience in LDOM's server virtualization with Solaris zones and ZFS file systems.
• Implementation of OS level virtualization and running Solaris 9 and 10 applications in Solaris Containers
• Evaluated ZFS on Solaris for Test and Development servers
• EMC disk configuration for Web, Application and Database servers
• Performance Tuning and Troubleshooting Web/Application/Database Servers
• Planned, scheduled and Implemented OS patches on both SWindows Linux boxes as a part of proactive maintenance
• Installation, configuration and maintenance DNS servers, Mail servers, FTP servers, NFS, NIS, NIS , RPM and Samba Web servers on Redhat Linux and CentOS
• Worked with Oracle and CA identity management products. Developed custom integrations and frameworks for Oracle Identity Manager, Oracle Role Manager, CA Identity Manager, and CA SiteMinder. Provided technical advice and development support to engineers in the field working around the globe.
• Providing technical support to the customers on all Unix server related issues within the SLA
• Assisted in configuring the application servers with other components such as database, web servers, LDAP directory, Active Directory, BEA Web logic, EAI, Business Objects etc.
• Veritas Net Backup5.1 on Sun Severs Installation and configuration and.
• Monitoring Disk Activity Checking for free space Removing temporary Core files
• Unix User individual Application accounts, Groups creation setting passwords,homedirectories and assigning permissions to them with Manager and resource owner approvals
• Worked on STIGS, ISSO and DISA guides for AWS Amazon
• User account Management in a Complete NIS environment,pushing maps to NIS slave servers with all the user home directories in auto mounted production systems
• Automated server backups on a monthly, weekly and daily basis using Shell Scripts
• Writing Perl, shell scripts for automation of log activity of application process and CRON jobs

Environment: HP, Dell servers Redhat Enterprise Linux CentOS Servers , Solaris 2.9,10. Linux 2.6, ServersESX 4,4.1 AND vSphere5.1 HP dl380 G5,G6,G7 G8, Hpdl580G5 and G8 .

Confidential System Engineer

Responsibilities:

• Provide daily support/administration to multiple hosted clients, which comprises of 50 ESX3.5/ESXi 4.1hosts in various cluster virtual farms with total 1500 Windows, Linux guests.
• Perform periodical Vmware hosts and guests patche updates , as well as perform parallel upgrade from ESX3.5 to ESXi 4.1
• Plan and coordinate new datacenter forklift move due to new acquisition
• Monitor/tune performance and capacity planning via Capacity IQ and BMC, Nagios.
• Build and provision HP and Dell servers with Fiber HBA for SAN storage environment, as well as for ESX hosts.
• Implement availability features for ESX3.5/ESXi 4.1 including VMotion, HA, Virtual SMP, DRS, Vswitch design, DPM, FT, performance troubleshooting.
• Provide a secure environment, managing and mitigating risks. As well as generating/auditing periodic permission and capacity metric report.
• Create, review, maintain, and update documentation/runbooks.
• Undertake problem ownership. Investigate Troubleshoot root causes when escalated from Operations.
• Build, deploy, and maintain Windows 2003, 2008, and Linux guests.
• Work with Storage/Backup/Network teams to ensure the optimal health of current VMWare environment for each of the hosting clients.
• Plan, coordinate, and conduct Disaster Recovery for each client environment.
• Installed and configured WebSphere Portal Server 6.0/6.1
• Involved in customizing portal applications and administering users, pages, and portlets.
• Created the Clustering Topology in WebSphere Application Server ND V5.X/6.x/7.X/8.X to achieve Work Load Management WLM , High availability, Load Balancing and Hardware fail over.
• Installed, configured and Administered WebSphere Commerce Server 6.0 on Windows and Linux platform.
• Configured Web server plug-in to directing dynamic requests to application servers for load balance in clustered environment.
• Installed EARs, WARs and configured application specific JVM settings, Web container parameters using the Admin Console and WSADMIN.
• Updated EARs for both Portal and Commerce servers.
• Involved in Performance tuning such as tuning the web server by specifying the parameters for the maxclient, start servers and maxspareservers. Tuning the Servlet engine and database connection pools. Tuning the Java Virtual Machine JVM by specifying the minimum and maximum heap size.
• Used Tivoli Performance Viewer to monitor WebSphere Applications and tuned the environment accordingly like changing the JVM Heap, and Connection Pool sizes.
• Configured WebSphere resources like JVM heap settings, JDBC providers, JDBC data sources, connection pooling, Virtual Hosts, Global Security and SSL.
• Involved with the SSL Certificates missing issues and installed certificates from the backup.
• Involved in issues Stopping/Starting/Restarting Apache HTTP Server using wsadmin account.
• Involved in Stopping/Starting Monitoring the logs for Application Server Instances.
• Implemented Horizontal and Vertical Clustering, Performance tuning and trouble shooting of IBM WebSphere Application Server 5.x/6.0/6.1/7.x/8.x.
• Installed EARs, WARs and configured application specific JVM settings, Web container parameters using the Admin Console and WSCP/WSadmin scripts.
• Migrated existing applications from WebSphere V6.0 to V7.0.
• Server, Sun ONE Web Server, Oracle, DB2 and SQL servers.
• Highly proficient in automating environment builds, administration and deployment operations using standard scripting utilities like Shell scripting.
• Experienced in applying Refresh packs, Fix packs, Cumulative Created, updated and reviewed PMRs and worked closely with the IBM PMR team and application teams for the resolution of the issues.
• Updated Fixpack for Portal Server 6.0/6.1
• Provided 24x7 support for any issues or impact caused by the New Changes.
• Implemented the Work Load Management using clustering.
• Involved in tuning, security, backup, recovery and upgrades of WAS on IBM AIX, Linux RedHat SuSE and windows.
• Created Clusters and instances in WebSphere Network Deployment to support high availability, fail over and implemented horizontal clustering.
• Configured WebSphere Recourses like JDBC Providers, JMS providers.
• Worked with Global Security, SSL and LDAP.
• Experience in troubleshooting, applying patches and plug-in for WAS 5.0/6.0/7.0
• Involved in migrating WebSphere 6.0 to 7.0 on AIX, Linux and Windows.
• Setting up Virtual Hosts on the Web server, configuring aliases and re-write rules.
• Performance monitoring using tools like Tivoli Performance viewer and wily.
• Experience in integrating WebSphere Application Server and Deployment manager with IBM Http server, IBM Directory Fix packs for all versions of WebSphere application server and different flavours of Web Servers

Confidential System Engineer

Responsibilities:

• Developing database applications.
• Maintain MS SQL Server 2005 and 2008, including security, configuration and install service packs upgrades.
• Build ETL processes utilizing SSIS and DTS, including FTP data from remote location, transform it, mart it to data warehouse and provide proper error handling and alerting.
• MS SQL Server database administration, including configure Scheduled Tasks for regular Database Backup and Maintenance Activities, create and modify tables, stored procedures, various clustered and non-clustered indexes, triggers, check constraints and functions.
• Create triggers to keep track of changes to the fields of tables when changes are made.
• Develop and implement web applications using HTML, Javascript, ASP and SQL Server stored procedures.
• Physical design and implementation SQL Server databases.
• Perform regular reviews of the database to identify performance problems, inadequate programming, and data duplication problems.
• Build applications that use API to automatically upload and download data from online store.
• Develop reports using SQL Server Reporting Services and utilizing complex SQL queries and stored procedures. Configure and maintain Report Manager and Report Server for SSRS.
• Assist junior programmers with scripts, SSIS projects, troubleshoot complex stored procedures and query optimization.
• Maintenance of existing database applications.
• Feasibility study of applications.
• Reviewing and evaluating externally supplied applications.

• Troubleshoot simple problems concerning Network or PC Systems over the telephone utilizing prior work experience and knowledge.
• Resolve user permissions problems on multiple systems including Audix, VGS, Windows NT, and AS400.
• Perform data restoration from nightly tape back-ups for users that experience a loss
• Assist users experiencing network printer errors by troubleshooting the printer and delivering appropriate corrective action.
• Create, coordinate, update, and follow-up on trouble tickets using the Remedy tracking software and through communication with the PC Analysts and end users.
• Perform routine application processing by utilizing documented procedures.
• Understand and actively participate in Environmental, Health, and Safety responsibilities by following established policy, procedures, training, and team member involvement activities.