SUMMARY:

• Over 6 years of experience as System Administrator incorporating DevOps, Build and Release implementation, administration, Maintenance and Application - product support with expertise in Solaris 8/9/10, Linux (RHEL 4/5/6), AIX 6.1/7.1, SUSE 9/10, CentOs5/6/7 and Windows (NT/2000/2003).
• Experience in installation and setup Kick start servers for RHEL 3/4/5/6 and Jump start Servers for Solaris 8/9/10 servers
• Strong experience working with various Development & Test teams in an Enterprise level environment.
• Hands on experience in maintaining integrity of Linux, Solaris servers by performing Packaging and Patching operations.
• Experience of creating and maintaining and monitoring user accounts, profiles, security, disk space and processes.
• Expertise in resolving file system errors, system crashes and errors.
• Expertise in configuring and administering NIS, NIS+, DNS, LDAP, DHCP, Mail Servers and web servers like Apache HTTP and Tomcat.
• Experience in installation, configuration and Volume/Disk Management using VERITAS volume manager (VxVM), Solaris volume manager (SVM) and VERITAS file system (VxFS) in Solaris and logical volume manager (LVM) in Linux.
• Extensive Experience in implementing and monitoring High Availability environment using VERITAS Cluster Server (VCS) and Microsoft Windows HPC pack2008R2
• Experience in installing and configuring of Web hosting administration HTTP, FTP, SSH, and RSH.
• Expertise in installing, configuring and managing Solaris Cluster and Solaris Cluster Suite in Solaris Server and Red Hat Cluster Suite in Linux Servers
• Experience on Solaris 10 container technology, installed configured and maintained local and global zones.
• Experience with the installation and configuration of puppet.
• Experience on to configure Red Hat Network Satellite Server for automated installation of Linux boxes and also created image of Linux system with automates Linux installs.
• Experience in configuring and administering Net Backup clients, SAN Devices, EMC storage.
• Expertise in creating and enhancing UNIX shell scripts using Korn, Shell, Bash and Perl Scripting.
• Experience in planning and implementing Migrations on Solaris and Linux servers.
• Extensive experienced in IPMP (IP multipathing) in Solaris and Bonding in Linux.
• Expertise in UNIX Performance monitoring and kernel tuning and Load balancing.
• Good experience in reviewing system logs files for errorsSettings up CRON jobs for backups and monitoring process.
• Experience in Monitoring servers to identify and troubleshoot issues using tools like Nagios, splunk and net-snmp.
• Expertise in DR (Disaster Recovery) planning and testing activities.
• Experienced in installing, configuring and providing support for Apache, samba, Web Sphere and Web Logic Application Servers.
• Experience in working with virtualization technologies like VMware in building and configuring Linux, Solaris servers as a part of cost effective solutions.
• Experience in documenting maintenance activities and changes in the network architecture.
• Ability to assess a situation, identify problems and devise corrective action
• Self motivated team player with good management, analytical, communication and interpersonal skills.

TECHNICAL SKILLS:

Operating systems: Solaris 8/9/10, Red Hat Linux (RHEL 3/4/5/6), Centos 5/6/7, IBM AIX (5.1, 5.3,6.1), Windows NT /2003/vista.

Server Hardware: Excellent Hardware skills on Sun Fire V100/V120/ V240/ V440/ V480/ V490/ V1280/ V880/ V890, Sun Enterprise 250/220R/420R/2900, HP Proliant DL 585/360/385/585 G2, rx8640, rp7420, rp8420, N-Class, L-Class, D-Class, K-Class, T-Series, M-Series, IBM e-Server Regatta P690, P570, IBM/HP/DELL Blade Servers.

Storage Hardware: Symmetrix DMX 800/1000 / DMX-2 / DMX-3 & EMC CLARiiON FC, FC JBOD, Brocade FC Switches, Net App Filers, Qlogic and Emulex FC HBAs, iSCSI/ FC Storage arrays, RAID Storage arrays, DLT and LTO Tape Libraries

Cluster: VERITAS Cluster 4.x, 5.x, HP cluster Sun Cluster 3.x, Microsoft Windows HPC pack2008R2 , Red hat cluster, HC, VMware ESX Technologies.

Monitoring Tools: Nagios, splunk, net-snmp, Tivoli, netcool

Web/Application server: Tomcat, Apache, Amazon web service, Websphere, Weblogic, Jboss

Languages: C, C++, HTML, SQL, Shell scripting Ksh & Bourn Shell

Networking Services: NIS, NFS, AutoFS, DNS, and Dhcp.

Virtualization Products: VMware, VSphere, VCenter Server, Xen, Solaris Zones.

CI/Version Control Tools: Hudson, Maven, Jenkins, GIT, SVN

PROFESSIONAL EXPERIENCE:

Confidential, Jersey City, NJ

DevOps/Build and Release/Unix Administrator

Responsibilities:

• Performed Dev, QA, and Prod UNIX system troubleshooting, performance and security analysis
• Validated servers listed on the patch schedule against servers needing vulnerability remediation.
• Performed Development, QA, and Prod UNIX system LAN ID requests, troubleshooting for system alerts and incidents.
• Performed Dev, QA, PSE and Prod requests for Operating System Support of Distributed Systems Project Portfolio Automation of general system admin security tasks and deployments
• Updated Operations/KPI/Verification Reports and documentation as required Storage.
• Configured and maintained volume groups, logical volumes and extended logical volumes using Logical Volume Manager, VERITAS Volume Manager and Solaris Volume Manager.
• Responsible for capacity planning, including allocating storage, providing hardware and software redundancy, and planning future expansion requirements.
• Wrote Shell scripts to automate system administration tasks.
• Created files systems on LUNs obtained from SAN including EMC symmetric series.
• Creating System Disk Partition, mirroring root disk drive, configuring device groups in UNIX and Linux environment.
• Performed OS Patch management, service delivery tasks and requests from management approved customer requests using HPSA
• Experienced various Network protocols like routing, HTTP, UDP, FTP, and TCP/IP.
• Troubleshooting various hardware related issues in co-ordination with vendors.
• Performed monitoring with Sar, Vmstat, iostat, Top and other tools.
• Users, Group administration using Centrify and file system as per the Business requirements.
• Used Crontab and Autosys to schedule repetitive task.
• Provided support for Database and application production releases.
• Worked with Puppet Enterprise and Chef by creating custom manifests and recipes for automation.
• Responsible install/configuration of Puppet and Nagios.
• Monitoring system health, performance and connectivity using Nagios.
• Documentation project: compile and standardize documentation and provided Knowledge transfer session for offshore UNIX teams.
• Participated on on-call support for Production Servers running critical applications and database on rotation basis.

Environment: AIX 5.x 6.x, Solaris 9, 10, Red Hat EL 5.x, 6.x, VERITAS Volume Manager, NFS, NIS, HTTP, FTP, TCP/IP, Nagios, Jenkins, Maven. Puppet Enterprise, Clearcase, HPSA

Confidential, Silver Spring, MD

DevOps/Linux Administrator

Responsibilities:

• Worked on installing, configuring and maintenance of Solaris 8/9/10, Red Hat Linux 4/5/6 AIX 7.1.
• Installing and configuring VERITAS volume manager (VxVM) 5.x, Disk and File system management through VERITAS volume manager, Solaris Volume Manager .
• Worked on to creating and maintaining of ZFS file systems.
• Created of whole root and sparse root zones on Solaris 10 and creation of VMs for windows 2003 and Linux on VMware ESX 4.0 and administering them with VI Client .
• Responsible for troubleshooting and maintenance of VERITAS cluster under Solaris 10 with numerous local zones.
• Worked on configuration of mpxio on Solaris and Powerpath for the LUNs on Linux and IPMP on Solaris, and NIC Bonding on Linux for redundancy of network interfaces.
• Performed on Mirroring of root disks using Sun Volume Manager; hardware raid for Linux systems.
• Expertise on configuration of SAN storage, containers, and resource pools.
• Performed user administration via NIS / LDAP; and maintained home directories with automount in NAS.
• Installed, configured and supported Jboss app server 4.x
• Startup and shutdown scripts, crontabs, file system maintenance and backup scripting and automation using shell scripting (BASH, KSH) and Perl.
• Worked on configuring NFS, and DNS environment mounting and unmounting the file systems.
• Involved on configuration and troubleshooting of services like NFS, NIS+, DHCP, FTP, LDAP, Web Servers, Samba Servers, and Apache Servers.
• Implement and manage continuous build, integrated build, automated unit testing and deployment processes. Leverages tools such as Maven and Jenkins.
• Own all customized Build Automation and Continuous Integration scripts, templates and processes through Puppet.
• Deploy the release of software components into pre-production environments.
• Create and maintain the continuous integration process documentation.
• Performed on monitoring and tuning using top, prstat, sar, vmstat, ps, iostat, ganglia etc .
• Extensively worked in SAN environment configuring multipathing using EMC Powerpath and Linux native multipathing using device mapper.
• Worked on package and patching management and debugging in all flavors.
• Performed on Data Backup and Recovery using VERITAS Net Backup; also was involved in multiple disaster recovery tests using SAN tier 1 R1/R2 devices .
• Updated the systems using Red Hat Enterprise Network (RHN), managing and monitoring through RHN.
• Involved in large data center migration-planning, designing, moving, servers to new data cente r coordinating and troubleshooting issues with various data center, network, application, and storage teams.
• Involved in planning, documenting, and supporting high availability, data replication , business persistence failover, fail-back using VERITAS Cluster in Solaris, Red Hat Cluster in Linux.
• Involved in mass migration of data from old EMC Storage sub systems to new sub systems.
• Performed on quality reviews and standards and provided 24x7 on - call / Remote Support for UNIX Production Problems of weekly rotation basis.
• Worked on configuring and maintaining Network Multipathing in Solaris and Linux.

Environment: Solaris 8/9/10, Red Hat Linux 4/5/6, VMware ESX4.0Veritas Volume Manager (VxVM), ZFS, VERITAS cluster server and zones, VERITAS net backup, and SAN, IPMP, NIC bonding, IBM P series Servers, VERITAS Net Backup 6.x.

Confidential, Bloomington, MN

Solaris / Linux system Administrator

Responsibilities:

• Involved in installing, administrating and supporting more than300 servers including but not limited to Solaris 8/9/10, RHEL 4/5/6, CentOs 6/7 and windows.
• Automated installation of Linux servers using Kickstart and Installation of Solaris using Flash, live upgrades and Jumpstart Servers.
• Worked with snmp/spectrum Monitoring Tool for monitoring Servers and Alerts.
• Worked on resolving trouble tickets issues, and handling day-to-day user administration tasks like adding deleting and modifying user data and documenting user data in centralized location
• Worked on projects like OS Build, assist OS Patching and configuring the VERITAS Storage Foundation Suite, etc.
• Responsible for configuring, upgrading, patching, packaging and maintenance of OS.
• Worked with Dev team to create a highly-scalable, distributed system for running web services.
• Involved in Migrating VERITAS Disk Groups using Deport and Import Techniques.
• Usage of Service Management Facility for enabling, disabling and also troubleshooting services in maintenance mode.
• Created metadb, soft partitions and RAID levels using Sun Solaris Volume Manager.
• Installed and configured send mail on Solaris, Linux and AIX servers.
• Worked on regular disk management like adding / replacing hot swappable drives on existing servers, portioning according to the requirement,
• Created new file systems, disk groups and managed existing file system using VERITAS/SVM in Solaris8/9/10 and RHEL4/5/6.
• Created and expanded luns to existing/new file systems using VXVM.
• Installed, configured and maintained NFS, NIS, FTP, DHCP, LDAP, Samba, SENDMAIL, Apache server in Solaris /Linux servers
• Upgrade and configured VxVM / VCS from version 4.1 to 5.1 version / and documented the process.

Environment: Solaris 8/910, Red Hat Linux 4/5/6, CentOs 6/7 VERITAS volume manager (VxVM), SVM, Amazon Web services, VERITAS Cluster, SUN, ZFS, NFS, NIS, DHCP, FTP, DNS, LDAP, Samba, SENDMAIL, Apache, VM Ware.

Confidential, Reston, VA

Linux/Solaris Administrator

Responsibilities:

• Installed Red Hat 4/5, Solaris 8/9/10, configured, and performed periodic updates
• Worked with VMware ESX Server 3.5 and configured VMs for Red Hat Enterprise Linux servers.
• Worked on LDOMs on T2000 servers.
• Upgraded server memory on RHEL5 & 6 servers
• Installed and updated system firmware, ILO/ILO2 Firmware and installed patches for the various OS
• Installed and maintain puppet-based configuration management system
• Managed Linux system security, utilizing TCP Wrappers, PAMs, and Iptables firewall.
• Configured SELinux layer of security on Red Hat server 5
• Used ISS System Scanner to detect and remove system security vulnerabilities
• Troubleshoot application issues on Red Hat Linux servers
• Resolved TCP/IP issues on RHEL 5 & 6 servers.
• Worked on FTP servers for sending and receiving files between local and remote servers
• Administered NFS on Sun Solaris & Red Hat Linux servers
• Involved with the SSL certificate missing issues and installed certificates from backups.
• Worked on installing, integrating, tuning, and troubleshooting Apache Tomcat, JBOSS, WebSphere and Weblogic application server
• Performed user account and group administration,
• Created Storage Group, Zones, Volume groups, and different RAID's using EMC Utility and responsible for backup and recovery using NetApps snapshot
• Configure and managing LVM on Linux using tools like lvextend, lvcreate and resize2fs
• Configure the RAID 1 and RAID 5 Storage Systems using VFS and VXVM
• Performed Systems log management, Data backup and restoration.
• Monitored server performance using Teamquest
• Scheduled Cron jobs to automate system task
• Administered Sudo and Redhat Linux package using RPM and YUM.

Environment: s: Sun Solaris 8, 9, 10, Red Hat Enterprise Linux (RHEL) 4.x, 5.x,, Teamquest, VMWare, Veritas Volume Manager, Veritas Cluster Server 4.0, SVM/LVM, VMware ESX Server 3.5.

Confidential, Fairfax, VA

Solaris / Linux System Administrator

Responsibilities:

• Staged and Maintained UNIX (Solaris 8,9 &10, SUSE 9/10, Red Hat Enterprise Linux4, 5,CentOS4, 5, VMware) on Sun Enterprise servers & Dell Servers.
• Implemented the Jumpstart servers and Kickstart Servers to automate the server builds for multiple profiles.
• Implementation and administration of virtualization on Solaris 10 with zones and created containers using FSS.
• Installation of MySQL Server
• Implementing file sharing on the network by configuring NFS on the system to share essential resources
• Set up mount points on Solaris servers for Oracle database
• Monitored client disk quotas & disk space usage
• System performance monitoring and tuning and system logs monitoring
• Performed data management using native Solaris utilities for archiving and compression
• Performed storage management with SAN/NAS.
• Migrated the manual jobs to self-executing cron jobs on Physical/Virtual Servers
• Involved in Configuring Automation & Centralized Management with Puppet
• Configured and managed Apache Web Server on Linux for web based applications using REST/SOAP, Apache and Weblogic
• Configured Postfix for red hat server.
• Controlled versions in repositories using version control tools like SVN etc.
• Managing file systems and disk management using Solstice Disksuite
• User account management, managing passwords setting up quotas and troubleshooting user logins using various remote login utilities
• Responsible for configuring real time backup of web servers
• Configured and administered security layers like SSL, SSH, HTTPS, SFTP.
• Experience with backup technologies like Veritas Netbackup 5.0, 6.x
• Worked with other IT teams, and other managers in helping build and implement systems and standards.
• Worked with Red Hat Package Manager RPM, YUM and YAST.
• Installed software and patches, Disk installation and maintenance and modified vfstab file for automatic mounting while booting, format disk and restoration of UNIX files and file systems

Environment: s: Redhat 4/5, Solaris 8/9/10, CentOs 4/5, SUSE linux 10.1/10.3, Apache 2.2, JBOSS 4.2, Veritas Netbackup5.x 6.x,, MySQL, VMware, Solaris Volume Management, Websphere 6.1

Confidential, Richmond, VA

Junior system Administrator

Responsibilities:

• Installed, Configured and upgraded Solaris8, 9, Redhat Linux 4,5 and Windows O.S Used Jumpstart with FLAR and Kickstart with PXE to install various profiles of the Operating Systems.
• Created, managed and troubleshoot LVM in Linux.
• Executed administrative tasks such as System Startup/shutdown, Backup strategy, Printing, Documentation, User Management, Security, Network management, dumb terminals and devices carried out
• Worked with SAN/NAS in EMC symmetric DMX 3 configurations and installation/ configuration of power path.
• Installed and configured SAMBA server for windows and Linux connectivity
• Provided support for Linux & Solaris based Apache and Tomcat Web servers.
• Performed Network management and configuration with DNS and NIS.
• Network infrastructure trouble-shooting and problem correction.
• Worked on User management, created and managed user accounts, groups and access levels
• Monitored System Performance of Virtual memory, Managed Swap Space, Disk utilization and CPU utilization
• Installed, configured, and maintained personal computers, network cabling, and other related equipment, devices, and systems; adds or upgrades.
• Automated daily routine jobs like server status check, taking backup by writing shell scripting in Ksh, Csh, and Perl.
• Provided Report analysis for resource utilization and 24x7 on call support.

Environment: s: Sun Solaris 8/9, Red Hat Linux 4,5, SAN, NAS, Samba, Apache, TomcatEducation: Bachelor in Science