SUMMARY

• 11+ years of professional IT experiences in Application engineering/operations as UNIX Solaris, Linux, and admin support.
• In - depth experience in Unix/Linux Systems Installation, Configuration, Implementation, performance Tuning, Maintenance, Security Setup, Support & Trouble-shooting.
• Worked in Networking and possess knowledge of TCP/IP Protocols,FIX,NFS and SMTP (Sendmail)
• Experience in Shell Scripts, hands-on solving of day to day operational issues, Resolution of technical issues on system integration and support.
• Strong analytical skills to solve complex and technical issues.
• Everyday UNIX and Linux Server administration, deployment, configuration, troubleshooting and server builds.
• Continuously be on top of the issues and keep Infrastructure and environment at peak performance with effective server and infrastructure management practices
• Constantly strive to keep server environment updated, secure, stable, meet SLA’s and keep server uptime of 99.99%.
• Communicate with management and cross-functional peers on projects requiring technical solutions.
• Drive delivery of solutions to meet the business requirement timeframe while still adhering to a high quality standard.
• Create solutions to maximize the performance, uptime, and supportability.
• Implement technology migration strategies (P2V, V2V, P2P, etc.) for applications or architectures.
• IT Project Management for Infrastructure Support Initiative projects.
• Sound understanding of IT Infrastructure Administration with project management skills.
• Experience of working in Data centers with 24X7 Production and On-Call Environments.
• Experience in providing day-to-day user administration like adding/deleting users and managing users queries.
• Team Management and Vendor Management skills.
• Create Operations run books for Linux, Solaris and Storage operations.
• Capability of installation, set up and maintenance of backup environment, backup software and work along with team to keep SAN environment.
• Understanding routing principles, design of consistent network-wide file system layouts and client/server programming, a capability to program in an administrative language.
• Hands-on experience with different types of storage structures (SAN/NAS/DAS).
• Experience in Configuring Jumpstart Server, Kickstart Installation for Network Installation on various UNIX Base Operating System.
• Strong in Package Administration, RPM, User administration (creating user ids, password management, permissions).
• Strong working experience on Disk Administration using VERITAS Volume Manager /4.x/5.5,Solaris Volume Manager, RHEL LVM.
• Administered and supported high availability, data replication, business persistence, fail-over, fail-back using VERITAS Cluster Server 4.x/5.x.
• Respond to all UNIX systems problems resolving them on a timely basis. Ensuring high availability and stable operations of the UNIX infrastructure adhering to problem resolution, escalation procedures and notify management of problem areas.
• Good communication and documentation skills, proven ability to work on multiple tasks concurrently completing them with in time according to SLA (Service Level Agreement) and provided on call 24/7 support.

TECHNICAL SKILLS

Operating Systems: Solaris8, Solaris10, AIX, Redhat 5.0, Redhat 6.0, Linux, OELWindows 2003, Cent OS, Windows 2008.

Content Mgmt: Vignette, Collage, Serena.

CDN: Akamai and AWS.

Languages: COBOL, C, SQL, and PL/SQL, Java and Perl.

Shell scripting: Korn shell, Bash and C.

Tools: Office 2010, Office 2013 suite, HPSM, Remedy, Perforce, MavenSubversion

Web Servers: Apache, SunOne, IHS, IIS.

Application Servers: Websphere, Apache tomcat, Weblogic, Jboss, Resin.

Architectures: SOA, ESB, AIA, J2EE.

Databases: Oracle 10g, Oracle 11g, Oracle RAC, OEM.

Security: Checkpoint, Symantec firewalls, OpenSSL.

Monitoring: Nagios, MRTG, Tivoli, MRTG, and Big Brother, NetIQ.

Virtualization: Vmware, OVM.

Practices: ITIL, ITSM.

Others: COTS products

Workload Mgmt: F5 load balancers

Hardware: Intel, HP, IBM, Oracle and Fujitsu, Google Search Appliances.

Protocols: TCP/IP, SNMP, IPX / SPX, POP3, SMTP, SSL, OpenSSH, SunSSH.

New Technologies: AWS Cloud.

PROFESSIONAL EXPERIENCE

Confidential, Tulsa, OK

Solaris/Linux Engineer

Responsibilities:

• Building the servers for new applications in development, QA, UTA, production and DR environment.
• Responsible for Software and application package administration and troubleshooting at user level and deployment management.
• Wrote scripts to automatic daily checks
• Managed shared NFS files system, mounting and unmounting NFS server, NFS client on remote machine, sharing remote file folder, starting and stopping the NFS services.
• Responsible for daily tasks such as user setup, group setup, install and upgrading new machines on Solaris, RHEL.
• Patch Management, Package management, RPM, User administration
• Supported development groups, application support and various external groups to resolve the production issues.
• Worked with legato networker tool to backup/retrieve the logs and transfer to FTP server at the request of the development to further investigate the incident.
• Tuning the kernel parameters based on the application/database requirement. Also regularly monitored system performance with the help of system utilities like vmstat, iostst, prstat etc. and other utilities like sar, top etc
• Responsible for conducting post incident review (PIR) meetings and to make sure to have a permanent solution for incident.
• Worked on data center migration projects and was involved from planning to implementation, worked closely with the application team with applying upgrades and also coordinated the deployment with the datacenter support, network engineering and with external vendor support .
• Followed ITIL Processes for Incident management, Change management and problem management.
• Responsible for preparing weekend work order and participating in weekend testing.
• Providing the notes /reports and documentation of the repetitive work done in incident management, change management and written/build standard operating procedures for GMS operations.
• Generate incident reports, change reports, turnovers, and executive summary.
• Simultaneously worked on different projects and problem tasks.
• Represented GMS operations in defect, problem task, system status meetings.
• Responsible for managing of Linux and Solaris Operating System.
• Experience on patch management and firmware up gradation using tools.
• Administration of Solaris Zones and LODMS.
• Experience on physical servers migrates to virtualization using Branded Zones.
• Administration and configuring of DNS and DHCP on Linux and Solaris systems.
• Administration and configuring of centralized authentication using LDAP, NIS and NIS+
• Administering of Linux Virtualization using VMWare ESXi.
• Working Linux build/packaging/release related projects.
• Experience on monitor JBoss and detect the bottleneck of an application
• Working on installation and configuration of JBoss.
• Experience on troubleshoot the JBoss
• Managing on calls with 24X7 and fix the issues within SLA.
• Experience on YUM Configuration and management.
• Administration and Configuring Logical Domain on Sun T-Series machine.
• Working exposure in RIS & PXE Installation.
• Experience on scripting using Perl, shell and bash.
• Managing administrating and troubleshooting RedHat Satellite.
• Administration and configuring LVM1 and LVM2 on Linux and SVM on Solaris.
• Having experience in production support of public cloud.
• Administration of Data center and replacing faulty hardware parts.
• Work experience on open stack.
• Configuring kickstart in Linux and Jumstart in Solaris for OS installing systems.
• Hands on exposure managing system configurations with tools like Puppet, Chef or Cfengine
• Knowledge on Python (programming language).
• Knowledge on Cisco Unified Computing System (UCS).
• Participates in a team responsible for the design, implementation, and automate deployments of systems, network, and storage hardware and software.
• Working experiences of application build and release engineering in a large environment.
• Work experience in automating Java application builds using tools such as Ant and Maven.
• Experience in developing Puppet modules to automate application installation and configuration management.

Environment: Linux 5.3, HP-UX 11.x, Solaris 10,VERITAS Volume Manager 4.x/5.x,Veritas Clustering 4.3, Shell scripting (Perl, Bash), FIX(protocol)4.2, C++, Legato networker, Net back up Tidal, Hp-open view, Service now, HP remedy.

Confidential, Houston, TX

Solaris/Linux Engineer

Responsibilities:

• Systems administration, maintenance and monitoring various day-to-day operations.
• Multipath and I/O errors on SAN disks working accordingly with SAN Team and fixing the issues as per SLA.
• Resolved system errors and crashes, disk space problems, huge file sizes, file system full errors.
• Administration and troubleshoot skills on Disks & File Systems for Linux and Solaris systems.
• Configured soft and hard links, NFS soft and hard mounts on Linux and Solaris servers.
• Troubleshoot and configure addtitional swap for Linux and Solaris servers.
• Identify the RISC on project and provide the solutions on priority.
• Work on single point of failover (SPOF) servers and arrang the standby server as project required.
• Documentation of all activities and preparing run books for Linux and Solarissystems.
• Having public Cloud Experience Amazon/Rackspace/Google Cloud
• Work expertise Cloud computing and virtualization.
• Remote management of Production, development & DR servers primarily built on Solaris.
• Red hat and UNIX latest OS installation on different architectures of the servers.
• Convert the File systems ext3 to ext4 and understand the uses of Ext4 file system in Linux with kernel version 2.6.28.functionally.
• Rotate logs using logrotate without performing any operation on Linux servers.
• Increase the size of LVM partition on Linux.
• Configuring Network bonding (NIC Teaming) on Linux and UNIX servers.
• Worked on incidents using Remedy, Service now and Maximo ticketing tools.
• Having good experience in web architecture.
• Having experience in deploying business applications by designing, automating.
• Experience on installing, configuring and tuning the SolarWinds platform.
• Work experience in Bash/Python/Perl scripting and automation
• Worked with development teams to provide a consistent platform for software development.
• Experienced at managing the escalation of cross-functional problems with multiple vendors
• Having ability to quickly identify a problem and find multiple creative solutions.
• Having ability to work under pressure with many assigned tasks and hard deadlines.
• Experienced with automation and configuration tools (Puppet, CFEngine)
• Experienced with maintenance of web applications running on Apache, Tomcat, and Nginx
• Excellent working experience in excel, vbscript and Power Shell.

Environment: Solaris 9/10, Sun Enterprise Servers SUN FIRE 6800/E6500/E4500 and E3500, Sun Sparc1000, Red hat Linux 4.3 /5, HP-UX 11.x,AIX 5.3,Suse Linux 10.x,Windows 2003,web sphere 6.1,,VERITAS Volume Manager 4.x/5.x,Veritas Clustering 4.3, C, C++, Tivoli, SENDMAIL Protocol, LVM,Tidal.

Confidential, Thousand Oaks, CA

Solaris/Linux Engineer

Responsibilities:

• Installed, configured, Maintained, monitored and supported Linux and Solaris servers.
• Set up jumpstart server & configured different servers/clients.
• Performed benchmarks for new software and hardware upgrades. Involved in Preparation of Disaster Recovery Plan for the systems
• Performed daily housekeeping functions, such as establishing new accounts, creating and resetting passwords, developing scripts, performing system backups and recovery, and installing software patches and updates.
• Managed Windows account maintenance, including additions, changes and remove
• Managed Windows security features to protect confidential information while allowing appropriate access
• Properly securing and monitoring the root user account for all Windows systems.
• Written UNIX Shell scripts for monitoring, log rotations & clean up old files.
• Writing and Implementing test cases and test scripts with shell, Perl and SQL script.
• Provided the support to production and various Lab environments on a Solaris2.x, SUN OS, and Network.
• Performing backups/restores using VERITAS Netback up Software.
• Administration/Configuration of Print Servers/Clients in the Network (Solaris/RHEL).

Environment: Solaris8/9/10,RHEL4.0,HP-UX-10.x,Aix5.3,SUNOS,Windows2000,E-10K,WebLogic 9,SUNFIRE 3800/4800/6800 , E 6500/4500/450/250 and Ultra machines,NFS,NIS,DNS,Shell Scripts,VxVm VxFs 3.x,VCS 3.5,NetBackup 4.5,Autosys .Tivoli backup management .

Confidential, Whitehouse Station, NJ

Solaris/Linux Engineer

Responsibilities:

• Worked with File System includes UNIX file System, and Network file system.
• Worked with Patches and Packages.
• Responsible for configuring NFS & AutoSys.
• Performed and maintained the corrupted file system.
• Performed Windows server system implementation and the transfer of systems into production
• Identifying and resolving Windows server system production support problems
• Worked with Web Logic Application on Solaris server.
• Patch administration on Solaris and Linux
• Handled Installation and configuration of Solaris on Sun Servers.
• Implemented the file sharing on the network by configuring NFS on the system to share essential resources.
• Provided customer support, help/troubleshoot users to resolve server, network, and other system wide problems. (Solaris /Linux)
• Responsible for Monitoring network statistics of various network related data structures.
• Involved in Documentation of UNIX environment and configuration details.
• Installation VERITAS Net backup server and client directly and as well as SSH procedure.
• Stopping/starting the net-backup services.
• Creating backup policies for client.
• Taking backup/Restoration of data as per user request.
• Increasing retention period of tape.
• Basic troubleshooting on backup issue.
• Data Center Operations of Netapp Filers.
• Storage Allocation - Aggregates/Volumes/ creation resizing and deletion.
• Migrating volumes from one aggregate to another aggregate.
• Configured the snapmirror between the filer and between the volumes on filer as schedule SnapMirror backup.
• Deduplication of flex volumes to avoid he duplicate data on volumes.
• Implementation of online backup and restore using with Snapshot technology in NetApp filers.
• Creating volumes, qtrees and exports as NFS and creating CIFS share directories for windows on Filer.
• LUN mapping/creation on Netapp devices,
• Creating LUNs of target host and initiator using iSCSI protocol and mapping to the igroups.
• Checking the File system and resizing the file systems as per client request.
• Moving data between the volumes and filers using vol copy.
• Checking the Log files using Filer View.
• Performed disaster recovery for production NetApp filers,
• NetApp daily health checks, hardware calls
• Aggregate creation, volume creation, Lun creation, Snap mirror creation

Environment: Sun E 2/450/4500, Sun Sparc 5/10/20, Ultra 5/10/60, Sun Storage D1000, Tape Library L3500, Solaris 7/8, HP-UX 10.x,RHEL 4.3, AIX 4.x/5.x, Window NT 4.0, DLT Tape, SAM, Solstice Disk suite, Raid Manager 6, VERITAS volume manager 2.6/3.0, VERITAS NetBackup 3.1/3.2/3.4

Confidential, Mountain View, CA

System Administrator

Responsibilities:

• Administration of Linux, Solaris and Windows servers.
• Installed windows 2003 and managed Active directory.
• Installed project specific applications for users.
• Installed Legato networker backup and managed backup clients.
• Installed and managed licensed applications for project.
• Troubleshoot and replace the hardware parts in data center.
• Handling technical support calls and resolving the queries in the allocated time frame.
• Managed on-call for 24X7 and resolve the issues within SLA.
• Patch and Package administration.
• Automating System Task, Managing Back-Up / Restore and Securities.
• Informing and updating clients about new products and services of the organization.
• Operating System installation and up gradation on Linux and UNIX flavors.
• Monitoring System Performance, Health and tuning.
• Installation, Configuration and Administration of Web Servers (Apache and Tomcat).
• Installation, Configuration and Administration of Mail Servers.
• Installation, Configuration and Administration of Database servers which includes creation of database, granting of privileges to the user, backup and restores management.
• Configuration and Administration of DNS Server on UNIX and Linux.
• Installation of the software’s including OS (UNIX and Linux) on remote as well as on local systems.
• Resolving file system inconsistency and disk summary.
• Linux System Administrator responsible for the operation, maintenance, and support of the high-availability server/database/storage platforms located in remote Data Centers across multiple time zones.

Environment: Solaris 8,7, RHEL 4,AIX 4.3.2,3, Sun Enterprise Servers E5500/E4500 and E3500, Sun Sprac 1000, IBM RS/6000 (S70/M80), Oracle 8i, C++, JAVA, Shell Scripting, Apache 2.x/3.x.

Confidential

System Administrator

Responsibilities:

• Installed and administration of windows and Linux (Centos, Ubuntu, Mandrake, and Red hat) servers.
• Administration of DHCP, FTP, NFS, Apache-Tomcat, Samba, Squid proxy on Linux.
• Monitoring the server’s health status using with different tools.
• Creating the local users and managing the passwords with using script.
• Preparing’s SOPs and managing central repository.
• Installed and troubleshoot the sendmail
• Configured and troubleshoot the local and remote printers.
• Configured and troubleshoot the NFS and SAMBA shares.
• Providing Application Support on RedHat Servers which included Apache configuration
• RPM package installation & upgrade released by RedHat from repository.
• Administration of client computer using SSH and FTP.
• Troubleshoot the network and firewall issues.
• Migrated windows and Linux servers in data center.
• Configured and troubleshoot the IP Address (class A, Class B and Class C) and VLAN.
• Worked on client's HPSM ticketing system for change management tasks on servers.
• Support for application upgrade & rollback, services start/stop on Linux Servers.
• Handled hardware issues like Memory, hard disk, Motherboard and Processor..etc
• Solving server problem with rescue mode recover filsystem corrupt form console.
• Worked helpdesk for incidents, CR and problem management and resolve the issue within SLA.

Environment: Redhat,CentOS,Mandrake Linux, hpnetserverE45/E50/Lpr/LH, hpproliant DL560/BL20pG3,Dell Enterprise Server, Redhat AS 4, Redhat 5.x, X86 Hardware.