SUMMARY

• DevOps engineer/Linux administrator wif Over 8 years of experience in solving complex problems wif creative solutions, supporting development and operations environments.
• Extensively worked wif Version Control Systems like Perforce, SVN (Subversion) and CVS, GIT, IBM Clear Case.
• Strong experience in System Administration, Installation, Upgrading, Patches, Migration, Configuration, Packaging, Troubleshooting, Security, Backup, Disaster Recovery, Performance Monitoring and Fine - tuning on Unix, Linux and Windows Systems.
• Experience in configuration of NIS, NIS+, DNS, DHCP, NFS, LDAP, SAMBA, SQUID, postfix, sendmail, FTP, remote access, security management and Security trouble shooting skills.
• Expert in deploying teh code through web application servers like Web Sphere, Web Logic, Apache Tomcat and JBOSS.
• Good knowledge in using RPMs to effectively package teh applications for product deployments.
• Experience wif Veritas Volume Manager (VxVM), Veritas File System (VxFS), Veritas Net Backup, Veritas Clustering wif SAN, NAS environment.
• Knowledge in every phase of SDLC and QALC.
• In-depth understanding of teh principles and best practices of Software Configuration Management (SCM) processes, which include compiling, packaging, deploying and Application configurations.
• Ability in execution of XML, Ant Scripts, Shell Scripts, Perl Scripts, Power Shell scripts and python, Ruby scripts.
• Extensively worked on Jenkins for continuous integration and for End-to-End automation for all build and deployments.
• Experience in installing, configuring and implementing teh RAID technologies.
• Setting up NIS/NFS on Redhat servers, setting up JBOSS cluster and oracle 10g cluster, configuring load-balancing on Apache, Redhat Linux 4.x/5.x/6.x.
• Setup, Implementation, Configuration of Backup/Restore solutions for Disaster/Business Recovery of clients using OMNIBACK on Unix and Linux platform.
• Used VMware VSphere, VCenter to create VMs managed these VMs on various ESX hosts.
• Good knowledge in working wif Amazon Web Services (AWS) for application migration from hard structure to amazon cloud.
• Application Deployments & Environment configuration using Ansible, Chef and Puppet.
• Closely worked wif Developers and Analysts to address project requirements. Able to effectively manage time and prioritize multiple projects.
• Strong ability to troubleshoot any issues generated while building, deploying and in production support.
• Self-motivated, quick learner takes independent responsibility to contribute and teamwork skills.
• Provided 24x7 production supports.

TECHNICAL SKILLS

Operating Systems: Unix/Linux:Sun Solaris, HP-UX, AIX, CentOS, RHEL, Ubuntu,SUSE. Windows:Win NT/98/XP/Vista/7/Server 2003/2008/2012. Virtualization:VMware ESX 3.x/4.x/5.x, VCenter, KVM Hypervisor, Virtual box.

Hardware: Sun Enterprise, Sun Fire, DELL PowerEdge, IBM RS/6000, pSeries, IBM Blade Servers, Cisco Blade servers

Server Management: SUN Solstice Disk & Admin Suites, VxVM, SMC, HP Open View, Network Node Manager, Compaq Insight Server Manager & Intel LAN Desk Manager, Nagios and Predict Amazon EC2 and S3.

Version Control Tools: CVS, SVN, GIT, Code commit, Bit bucket.

Languages: C, C++, Java script, SHELL, Python script, Ruby, Perl, MATLAB, HTML, XML, PHP.

Databases: Oracle, MySQL, Dynamo DB, PostgreSQL, MongoDB

Web & Application Servers: WebSphere, Apache and Apache Tomcat, WebLogic, JBoss, Nginx

DevOps/Build Other tools: AWS, Open stack, Microsoft Azure, Ansible, Puppet, Chef, Jenkins, Bamboo, TeamCity, Docker, BuildForge, Apache ANT, Apache MAVEN.

Network Services: TCP/IP, IPv4, IPv6, SSH, DHCP, FTP, LDAP, DNS, NFS, tcpdump, Wireshark, Cisco Routers, Switches, VLAN, IPtables.

Project Management Tools: JIRA, Confluence.

PROFESSIONAL EXPERIENCE

Confidential, Newark, NJ

DevOps Engineer / Sr. Linux System Administrator

Responsibilities:

• Managed Linux and Windows virtual servers on AWS EC2 using Open-Source Chef Server.
• Working for DevOps Platform team responsible for specialization areas related to Chef for Cloud Automation.
• Collaborated wif Development and Support teams to setup a CD (Continuous Delivery) environment wif teh use of Docker and Wercker, continuous build and delivery tools.
• Developed automation framework for Application Deployments to teh cloud environments.
• Worked on migration from Datacenter to AWS.
• Designed & deployed AWS solutions wif E2C, S3, RDS, EBS, Elastic Load Balancer, Auto scaling & Opsworks; deployed cloud stack using AWS OpWorks.
• Optimized volumes and EC2 instances and created multi AZ VPC instances.
• Used IAM to create new accounts, roles and groups.
• Configured S3 to host static web content, Elastic Load Balancers wif EC2 Auto scaling group.
• Configured and monitored distributed and multi-platform servers using chef.
• Development of Chef Cookbooks to manage systems configuration.
• Supported AWS Cloud instances and familiar wif Amazon Cloud command line management.
• Worked on User admin setup, maintaining account, Monitor system performance using Nagios & Tivoli.
• Familiar working wif monitoring tools like splunk, AppDynamics to monitor teh logs.
• Configured and maintained Lamp stack on production and staging servers.
• Worked on Multiple AWS instances, set teh security groups, Elastic Load Balancer and AMIs, Auto scaling to design cost effective, fault tolerant and highly available systems.
• Implemented Chef Recipes for Deployment on build on internal Data Centre Servers.
• Used Chef, Knife, Ohai to create cookbooks and recipes to install packages that automate wif Linux.
• Branching, Tagging, Release Activities on Version Control Tools: SVN, GIT.
• Develop Custom Scripts to monitor repositories, Server storage.
• Built and deployed J2EE application in WebSphere 6.1and 7.1 using python scripts.
• Worked on Administration, maintenance and support of Red Hat Enterprise Linux (RHEL) servers.
• Upgrading Production Environment servers for Stability and Security.
• Experienced network based services including DNS, Syslog, NTP, SSH. Utilized Netstat, Dig, TraceRoute, Nmap, iPerf, Rsync.
• Knowledge on SaaS, PaaS and IaaS concepts of cloud computing architecture. Implementation of AWS (IaaS) and Openstack.
• Continuously updating documentation for internal knowledge base of support team and IT team.
• Provided 24x7 production supports.
• Created analytical matrices reports, dash boards for release services based on JIRA tickets, reach continuous delivery and built clouds wif AWS.

Environment: DevOps, Redhat (5.x), ElasticSearch, EC2, ELB, CloudWatch, Cloud Formation, Chef, AWS, Jenkins, Maven, Ant, GIT, Docker, Apache, Nagios, MySQL, Python.

Confidential, Boston, MA

Sr. Linux System Administrator/ DevOps Engineer

Responsibilities:

• Responsible for Unix/Linux System and Network administration in VMware ESX 4.1 & 5.1, Sun Solaris (10/11), Linux (RedHat 5/6) servers running different Database, Middleware Applications and on Amazon AWS cloud services.
• Build new VMwareESX Server 4.x/5.x on HP HW running Red Hat Enterprise Linux & Created different virtual machine like Debian, windows 2003 & 2008 server, SUSE enterprise Linux using VMware Virtual Infrastructure Client tool and configured wif EMC storage box.
• Storage Provisioning, Volume and Filesystem Management using LVM, Veritas Volume Manager and Veritas Filesystem (Veritas Storage Foundation), Configuring ZFS filesystems.
• Experience in cloud migrations of Development and Production servers running on Linux.
• Created Redhat and SUSE VM Templates and performed VM cloning activities on ESX Clusters.
• Responsible for Deployment, automation and installation of servers via Puppet and Chef.
• AWS Import/Export accelerates moving large amounts of data into and out of AWS using portable storage devices for transport.
• Worked wif LAMP (Linux, Apache, MySQL (database), Perl and Python).
• Worked on Amazon Web Services - AWS (Cloud Computing).
• Migrated applications to teh AWS cloud.
• Creating virtual machines using Xen, KVM hypervisor on Xen servers, installing Red-hat using kick-start and Cobbler.
• Supported profiles on Veritas Netbackup.
• Experience in monitoring infrastructure consisting of Nagios server wif Centreon as web interface for configuration and display of performance data.
• Supported around 300+ Linux and Windows VM’s running on ESX Cluster environment and performed vMotion activities for load balancing of resources.
• Involved in Storage migrations using multipathing tools and Mirroring options at file level and block both at host level and SAN Array level and proficient in configuring Native and EMC multipathing on servers.
• Involved and set up migration for Unix/Linux server and SAN storage between data centers and also application migration and testing.
• Experience working wif Linux and Solaris servers connected to EMC and IBM SAN Arrays like VNX, VMAX, XIV and performed host level tasks like multipathing using EMC Powerpath, IBM Tools and Redhat Native Multipathing.
• Clustering solutions for High Availability using tools such as Veritas Cluster Server (VCS), MSCS, RHCS
• Configuring and maintaining virtual server environment using VMWARE ESX, VCenter VSphere.
• Installation, Configuration and support for Redhat Satellite Server and for upgrading and patching Linux Servers.
• Expert in setting up JBoss cluster and configuring apache wif JBoss on RetHat Linux. Proxy serving wif Apache. Troubleshooting Apache wif JBoss and Mod jk trouble shooting for teh clients.
• Provided 24x7 production supports.
• Expert in setting up teh lab environment wif Tomcat/Apache, configuring teh setup wif F5 virtual load balancer for customer application.

Environment: VMWare, AWS, LAMP (Linux, Apache, MySQL, Perl & Python), Nagios, SAN, Mod jk, Puppet, VMWare ESX, Vcenter, Vsphere, Apache Web Server on Windows, Linux and Solaris, IIS 4.0, 5.0, 6.0, iPlanet 6.x, WebLogic, JBoss.

Confidential, Portland, Oregon

Linux System Administrator

Responsibilities:

• Performed system administration activities like installing, upgrading, updating teh maintenance page, restarting and stopping teh services during teh maintenance period; Responsible for Administrative support for 1500+ Linux/Solaris running WebLogic Suite applications.
• Installed and configured JBOSS application server, puppet.
• Involved in server automation using Puppet for Linux and Solaris servers.
• Managing projects for various Puppet system integration projects.
• Storage Provisioning, Volume and File system Management using LVM/Veritas on Linux in a SAN environment.
• Experience in troubleshooting system and user issues.
• Responsible for VMware Infrastructure administration.
• Responsible for creating templates and deploying VM’s in VMware environment.
• Create Opsware implementation records to populate server specs to kickstart file process.
• Automated server provision to modify server parameters and enable bulk server provisioning.
• Configured Red Hat Linux 6 machine as an LDAP client.
• Controlled disk operations, disk group operations, volume operations and volume configurations using vxdisk, vxdg, vxassist, vxmake and vxvol in Veritas Volume Manager.
• File system Tuning and growing using Veritas File System (VxFS), coordinated wif SAN Team for storage allocation and Disk Dynamic Multi path.
• Involved in maintenance of systems including patching, setting up Print servers, Configuring File systems, using LVM/Veritas on HPUX/Linux/Sun Solaris OS, involving SAN environment.
• Post provision servers to modify system parameters for appropriate purposes and validate them.
• Perform validation tests/QA to ensure consistency prior server delivery to teh appropriate teams.
• Build VMs via Red Hat Cloud Forms as per teh requirement and troubleshoot them for any errors.
• Tested Puppet Enterprise in lab environment and successfully set up node communication.
• Provided problem resolution for system hardware, software, and/or Operating Systems and developed specialized automation tools, scripts, and processes for performance monitoring of system hardware and/or software.
• Developed Korn and Bash shell-scripts to automate routine activities and involved in running some SystemTap scripts.
• Automated system management tasks like user account creation, file system size monitoring, monitor system resources and system maintenance using Shell, and Perl scripts.
• Deployed latest patches for Linux and Application servers, performed tuning.
• Perform performance monitoring and report activity log to senior management.
• Monitored trouble ticket queue to attend user and system calls, attended team meetings, change control meetings to update installation progress, and for upcoming changes in environment.
• Configured Linux Kickstart on multiple servers for network installation.
• Configured Multipath, Powerpath, added SAN, created physical volumes, volume groups, and logical volumes.
• Setting up network environments using TCP/IP, NIS, NFS, DNS, SNMP agents, DHCP and Proxy.
• Responsible for setting up and managing Kickstart and Jumpstart environments.
• Modifying/ Writing scripts in Bash and Korn shell for optimizing day to day administration.
• Troubleshoot and work wif appropriate teams for HP / DELL hardware for network/storage issues.
• Design, build, and integrate scripts to support teh DevOps platform.
• Document all changes to improve process for future use using Media Wiki and Confluence.
• Annual Participation in Disaster Recovery (DR) and power down Activities.
• Maintaining production critical servers running Red Hat Linux supporting Oracle database and Web services. Providing 24x7 supports.

Environment: Red Hat 5.x/6.x, AIX 5.3, 6.1, Windows Server, XP, 07,08, IBM RS/6000, pSeries, IBM Blade Servers, DNS, NFS, SMTP, Veritas File System (VxFS), Web server Apache 1.3x, Application server Jboss, SAN Storage, Sun Solaris 10, SunFire V480/V490/V240/F4800/E2900, M3000, M4000, VMware, vSphere 4.1/5.1, Configuration management tools Puppet.

Confidential, St. Louis, MO

Linux System Administrator

Responsibilities:

• Responsible for day-to-day System Administration tasks system monitoring, verifying teh integrity and availability of all hardware, Troubleshooting, server resources, systems and key processes, reviewing system and application logs, and verifying completion of scheduled jobs such as backups.
• Responsible for writing/modifying scripts using bash, ksh, and python for day-to-day administration.
• Responsible for Process administration me.e. monitoring processes using PS utility, signaling a running process, system load, scheduling processes using CRON utility and ZENA.
• Built new servers using Custom jumpstart installation and Kick start.
• Installation, Configuration & Upgrade of Linux, Solaris and HP-UX Operating System.
• Excellent knowledge in Installation, Configuration and file system and RAID volume management through VXVM and Solaris Volume Manager (SVM) in Solaris and LVM in Linux and HP-UX.
• Setup and configuration ofHP rp7410 server along wif HP Storage Works SAN.
• Experience in installing, configuring and maintaining WebLogic Application Server and WebSphere Server wif java Application tools on Linux and Unix servers’ environment.
• Configured and deployed JBoss application server.
• Installed and configured VERITAS Volume Manager and VERITAS File System as needed.
• Supported, Installed and Upgraded VERITAS NetBackup software on multiple Unix servers (Solaris).
• Installed and configured system network monitoring tool used Nagios and troubleshooted virtual machine issues.
• Compiled, Build & Installed PostgreSQL database 8.3.1 and written shell script for startup in SUSE Enterprise Linux 10sp1 Supermicro dedicated server 6015B-3R for Fortress platform development Lab, app and QA team.
• Used IPMI (Intelligent Platform Management Interface) tool for accessing Supermicro server and managed F5 system.
• Worked closely wif database administration staff to ensure optimal performance of databases, and maintain development applications and databases.
• Configure all Linux systems to autanticate to Windows Active Directory using Kerberos and LDAP.
• Excellent knowledge of Linux/Unix kernel tuning using SAM, building customized kernels.
• Install/Configure VMware ESX 3.5 environment wif a NetApp Backend.
• Configure and manage implementation of Samba, PHP projects, Apache Web Server, DNS, LDAP, IPTables Firewall, NFS, NIS, MYSQL\PostgreSQL, Open Source Apps, and User Administration.
• Implemented an instant messaging solution using Openfire and Psi.
• Responsible for securing all Solaris/Linux servers using iptables, SSH, Syslog, and Log watch and Securing services using TCP wrapper and SE Linux.
• Creation/Configuration of Additional swap/ tmp dynamically as and when required.
• NFS Management - Take care of user accounts/groups, setting up of NFS Environment.
• Management of system back up and data archiving procedures for all business hosted on ourproduction and development servers using Legato Backup tool.
• Installed and Managed Nexus Private repository manager for handling dependency management.

Environment: Linux, Solaris and HP-UX, WebLogic, WebSphere, Solaris 10, DNS & NTP, MySQL, Nagios, PostgreSQL database 8.3.1, IPMI, JBoss, VERITAS Volume Manager.

Confidential

Unix/Linux System Administrator

Responsibilities:

• Installation and configuration of RedHat Linux, Solaris and Windows NT servers.
• Administered and configured RHEL 4/5, Solaris 9 Operating systems environment.
• Extensively worked on virtualization (Creating hypervisors and building up new virtual machines).
• Configured and installed Apache Tomcat and WebSphere.
• Configured and maintained DNS, NFS, DHCP and automounter.
• Worked wif various types of file systems and volume management solutions: ZFS, LVM, VXVM and SVM.
• Monitored system performance of Virtual memory, Managing Swap space, Disk utilization and CPU utilization.
• Installed, configured and maintained PCs network cabling and other related equipment, devices and systems.
• Installation and configuration of Oracle 7.x/8.x.
• Responsible for setting up cron jobs scripts on production servers.
• Installed and configured SAMBA server for Windows and Linux connectivity.
• Involved in user account Administration and user account management and support.
• Installed and configured Patches and Packages and troubleshooting teh system and end user issues.
• Involved in managing local disk devices, creating LVM and involved in Monitoring & System tuning.
• Involved in design, configuration, installation, implementation, management, maintain and support for teh Corporate Linux servers RHEL 4x, 5.x, CENTOS 5.x.
• Log file was managed for troubleshooting and resolving errors.
• Provided 24x7 System Administration support for Red Hat Linux servers and resolved trouble tickets on shift rotation basis.

Environment: RedHat Linux, Windows NT, Windows, Sun Solaris, Red Hat Cluster Servers, Apache Tomcat, WebSphere, Oracle 7.x/8.x, DNS, NIS, NFS, ZFS, LVM, VxVM, SVM.