SUMMARY:

• Experience of 6 years working on DevOps/Build and Release, Red Hat Enterprise Linux 4.x/5.x/6.x, Sun Solaris 8/9/10, SUSE Linux Enterprise 10/11, Ubuntu Linux 8.x, Fedora Linux 7/8/9/10 and AIX 6.1/7.1.
• Experienced and Familiar with Virtualization technologies VMware vSphere ESXi 5.x/6, vSphere Client. Created and managed Virtual hosts in ESXi server.
• Extensive experience in installing and configuring Jumpstart servers for provisioning of Solaris 8/9/10 servers and Kickstart servers for provisioning of RHEL 4.x, 5.x and 6.x.
• Experience in configuring Red Hat Network Satellite Server for upgrading RHEL servers and also configured cobbler for automated installation of OS in servers.
• Worked on Release schedules, planned for Release status, created Rollout Plans, tracked the Project Milestones, prepared the reports and acted as a Implementer for the Release calls and worked for a successful Release.
• Created SCM Process, policies and procedures to follow Development and QA teams to Release or Deploy highest quality product for the enterprise.
• Experienced on Build Automation and Continuous Integration concepts by using tools like ANT, Maven, Hudson, GIT, and CruiseControl.
• Experience in SAN, NAS, NFS storage and RAID setup.
• Experiences in installation, maintenance and troubleshooting various services NIS, DNS, LDAP, NTP, FTP, DHCP, SAMBA, Mail, HTTPD (Apache) and so on.
• Experience managing various filesystem using Veritas Volume Manager (VxVM), Logical Volume Manager (LVM) and Solaris Volume Manager (SVM).
• Experience in Server monitoring, capacity planning and application monitoring with the help of Tivoli and Nagios.
• Worked with Puppet Enterprise and Chef by creating custom manifests and recipes for automation.
• Experience in implementation of Intrusion Detection System: Tripwire, Snort
• Handling day - to-day User Administration tasks like adding, deleting and modifying user data and documenting all user data in a centralized location.
• Performance tuning of Linux hosts identifying process that hog the system resources and Kernel Parameter tuning for various application installation.
• Extensive experience in IP multipathing and NIC Bonding in Linux servers.
• Responsible for Backup and Recovery operations of various servers using Symantac NetBackup.
• Advance Scripting skills in Bash.
• Working Knowledge on using and developing Perl and python scripts used to automate day to day administrative tasks.
• Responsible for system maintenance activities like upgrading the OS, updating the services and installation of third party software’s.
• Experience in installation, upgrades, configuration of Package and Patches Management.
• Good Experience in reviewing system log files for errors. Setting up Cron jobs for backups and cleaning temp files.
• Installation and configuration of application servers Tomcat and Websphere.
• Have tested various Linux Environments in the Development/Test Stages to help create a better standardized environment and resolutions of any problems if any occurred.
• Experience in different components of Amazon Web Services (AWS).
• Worked in Veritas Cluster Server (VCS) to create High Availability (HA) environment.
• Proficient on cloud based operation and automation.
• Involved in DR (Disaster Recovery) planning and testing activities

TECHNICAL SKILLS:

Programming Languages: C/C++, C#, UNIX shell scripting (Bourne, Bash & Korn), HTML, Perl 5, Python, VI editor, Awk & Sed, SQL

Software: FoxT Keon, SVM, Apache, Tomcat, Veritas Volume Manager 4.1/5.0/5.1, SQL (Oracle 8/9 & DB2), Symantac Netbackup, Veritas Cluster Server, Symantac PCAnywhere, HP-iLO, Puppet Enterprises, Chef, vSphere ESXi 5.x/6, vSphere Client, Putty, WinSCP, FileZilla, SecureCRT, Microsoft Office Word, Excel, Outlook, PowerPoint, Open Office, Visio

Operating System: Red hat 4.x, 5.x, 6.x, SuSE Linux 11/12/13, Ubuntu 8.x, Sun Solaris (8, 9 & 10), Windows 2000/XP/7/8, Fedora Linux 7/8/9/10 and AIX 6.1/7.1

Hardware: 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, RS6000, IBM/HP/DELL Blade Servers

PROFESSIONAL EXPERIENCE:

Confidential, Newport, NJ

DevOps/System Administrator

Responsibilities:

• Provided user access and security management by using FoXT Keon (Boks).
• Installation and configuration of Keon client in Linux, Solaris and AIX servers in development, QA, production and DMZ environment hosts.
• Worked in a ticket queue to solve user access issues in server and making various changes in user accounts.
• Played a major role as a support in server migrations where it demands the instant solution for various access related issues by analyzing the logs.
• Creating Human and Functional users and provide required SSH, SCP, SFTP, su, sudo access.
• Updating LDAP database with various groups and GID associated in user accounts.
• Various maintenance in local servers like creating home directories, adding secondary group for users, setup SSH keys for passwordless SSH, Changing file permission, ownership and so on.
• Teleconference with various teams about their requirement and inform them the standards required to follow for user's access to servers.
• Writing various scripts (Bash, Perl, and Python) to automate the daily tasks.
• Monitoring unusual activities in logs and reporting it to respective security team.
• Built virtual machines (VMs) in VMware ESXi 5.x Server using vSphere client and installation of RHEL on virtual machines.
• Part of initial install/configuration of Puppet and Nagios.
• Automate deployment and release distribution process with Shell, Perl and Hudson
• Maintenance of continuous integration based on Maven and Hudson
• Installation and configuration of cobbler for automated installation of RHEL in server.
• Installed, Configured and maintenance of DNS servers, DHCP Servers, FTP servers, LDAP, Samba and Apache web servers.
• Disk and file system management through Veritas Volume Manager (VxVM), Solaris Volume Manager (SVM), and using Logical Volume Manager (LVM).
• 24x7 on-call support for server migrations.

Environment: RHEL 6.x, Solaris 10, AIX 7.1, KEON (Boks), ESXi 5.x, DNS, DHCP, NFS, SAMBA, Apache, Puppet, Nagios, Maven, Hudson, VxVM, SVM, LVM

DevOps/System Administrator

Responsibilities:

• Responsible for installation and configuration of Red hat Enterprise Linux (RHEL6.x) and SUSE Linux Enterprise 10/11 on physical servers as well as Virtual Machines in development and test environment.
• Installation and configuration of VMware ESXi 4.1/5.0/5.1.
• Worked with package management tools RPM and YUM to install packages and patches for Red hat Linux Server.
• Added new Users and groups and gave sudo access in test and development servers and central file synchronization via maintenance of file sudoers, authorized keys, passwd, and group.
• Installed and configured Redhat Satellite Server to deploy upgrade packages in Linux Servers.
• Worked with DBA team in installing and configuring Oracle 10 g/11g, Sybase, Db2 client v 8.1/9.x and performed Kernel Parameter Tuning to support the application install.
• Used Veritas Volume manager (VxVM) and Logical Volume Manager (LVM) to create disk groups, volumes, volume groups, and RAID.
• Responsible for automation by writing manifest in Puppet Enterprise.
• Setup and Configure the continuous build system using Hudson/Jenkins and running automation smoke / nightly test suites.
• Worked with Chef and configured them.
• Worked in Installation, Migration, Integration, Implementation, Release and building of products.
• Maintained and executed build scripts using Maven by coordinating with development and quality assurance teams.
• Used shell scripting (Including Bash, Python and Perl) for system/application in automating server task, installing and monitoring applications and scheduled Cron jobs for deleting temp and old files.
• Configured Kickstart for RHEL (Various versions) to perform image installation through network.
• Co-ordinated with Middleware team in installation, configuration and troubleshooting issues with WebSphere on Linux hosts.
• Worked extensively on application server Apache Tomcat to deploy java server pages.
• Setup LAN/WAN, firewalls and routing for Internet and Intranet connectivity using different protocols and services like TCP/IP, DHCP, DNS, FTP, SSH, Telnet.
• Involved in DMZ firewall rules, configure iptables and iptables init script.
• Modified user’s password policies, group policy, UID and GID assignment policies as needed.
• Performance tuning and monitoring system using top, sar, ps, prstat, vmstat, netstat, iostat and cpuinfo to check the CPU utilization, bottlenecks of I/O devices, memory usage and network traffic.
• Troubleshoot network connectivity used ping, netstat, ipconfig, and traceroute commands. Transferring files across the systems on the network used sftp and scp commands.
• Monitoring system health and connectivity using Nagios.
• Regularly backed up critical data and restored backed up data using Symantec NetBackup.
• Worked in solving tickets issued on day to day activities and problems related to development and test servers

Environment: vSphere ESXi 4.1/5.0/5.1, Red Hat Linux (RHEL 6.x), SUSE 10/11, Oracle 10g/11g, TCP/IP, DNS, DHCP, NFS, Apache Tomcat, Puppet, SMTP, NetBackup, Websphere

Linux System Administrator

Responsibilities:

• Installation, configuration and administration of RHEL 5.x/6.x and Solaris 8/9/10 operating systems using custom Kickstart and Jumpstart.
• Managed account, user and group administration, Permissions policy management and quota implementation.
• Created Amazon EC2 instances and used Elastic Load Balancing to distribute high incoming application traffic.
• Worked on TCP/IP Networking troubleshooting and Linux Network Administration.
• Worked on Installation, configuration, support and security implementation on services such as DHCP, SSH,NFS, SAMBA, NIS, DNS, TTPD, and E-mail
• Extensive experience in Management of Firewall, iptables.
• Installation and configuration of Chef and deployed recipes for automation purpose.
• Implemented and maintained server virtualization using Vmware vSphere client.
• Worked on installation and configuration of MySQL and Oracle 10g and also performed Kernel Parameter Tuning before installation of MySQL and Oracle 10g.
• Written and implemented perl script to modify LDAP database with ease.
• Experience in Veritas Cluster Server (VCS) configuration and administration to create a HA environment.
• Worked on regular disk management like adding / replacing hot swappable drives on existing servers, portioning according to the requirement, creating new file systems or growing existing one over the hard drives and managing file systems.
• Experience in setup Storage area Network (SAN) and NAS and file system backup and restore.
• 24x7 on-call rotation for support of production systems

Environment: Red Hat Linux (RHEL 5.x/6.x), Solaris 8/9/10, TCP/IP, AWS, DNS, DHCP, NFS, SAMBA, Apache, POSTFIX, SMTP, MySQL, Oracle, Vmware vSphere, VCS

System Administrator

Responsibilities:

• Installation and configuration of RHEL 5.x/6.x, Solaris 9/10 and AIX 6.1 in servers for production and test environments.
• Installed and configured Redhat Satellite Server for upgrading and patching Linux Servers.
• Setup, maintenance, and operation of company-wide services such as DNS (BINDv8), mail (sendmail), HTTPD (Apache), Samba, and DHCP.
• RPM Package administration using RPM build, installing packages.
• Configured storage using LVM (Logical Volume Manager) to configure volume group, logical and physical partitions and importing new physical volumes.
• Implemented RAID configuration for data redundancy.
• Implementing file sharing on the network by configuring NFS on the server to share files between different teams.
• Installation and configuration of Nagios and Tivoli for monitoring servers, applications and services.
• Deploy, configure and maintain Fiber channel based SAN/NAS storage.
• Performed reconciliation of checks and data migration from one tier to another.
• Disaster Recovery - took part in design, built and maintained disaster recovery data center.
• Troubleshooting and analysis of hardware and failures for various Solaris servers (Core dump and log file analysis).
• Created, configured and maintained the HA across servers using VERITAS cluster server (VCS)
• Installed and configured Cobbler to deploy various OS in many servers easily.
• Scripting and task automation using Corn job and Bash/ Perl scripting.
• Experienced in IP Multipathing to create HA environment and NIC Bonding to increase NIC bandwidth in Linux.
• Developed and implemented a network monitoring solution to monitor disparate networks.

Environment: s: Red Hat Enterprise Linux, Sun Solaris, AIX, Bash & Perl, DHCP, BIND, SAMBA, Apache, Sendmail, LVM, NFS, Nagios, Tivoli, VCS