PROFESSIONAL SUMMARY:

• IT professional with over 8 years of experience on different flavors of Linux environment such as Red Hat, Oracle Linux, Ubuntu, AIX, HP - UX with supporting Development environments.
• Experience in virtualization technologies like, VMware infrastructure, including hosts ESX/ESXi 5.x, 6.x, and vCenter, vSphere 5.x and associated VMware products. Creation of VMs, cloning and migrations of the VM’s on VMware vSphere.
• Understanding of networking concepts, (IE. Configuration of networks, router configuration and wireless security, TCP/IP, VPN, Content Filtering, VLANs, and routing in LAN/WLAN, Ethernet Port, Patch Panel and wireless networks.)
• Experience with AWS Cloud Administration which includes: EC2, ELB, S3, EBS, VPC, Auto Scaling, Route 53, Redshift, and CloudFormation.
• Experience in configure and maintaining JBoss, WebSphere, and WebLogic application servers.
• Experience in Installation of security feature to MySQL, Mongo DB and Cassandra database on Red Hat Linux Servers.
• Experience in Infrastructure monitoring, application monitoring with the help of Tivoli, Nagios.
• Experience in writing Chef cookbooks to automate our build/deployment process to improve the infrastructure scalability performance.
• Experience on Performance tuning of Linux machines in the environment by kernel parameter tuning, identifying process that hog the system resources and containing them.
• Responsible for Backup and Recovery operations of various servers using VERITAS Net Backup.
• Experience in customizing the Kickstart and Jumpstart scripts to automate server builds various internal projects.
• Experience in writing Puppet modules for installation and configuration of various deployments on third party applications and knowledge on Vagrant.
• Strong experience in developing Shell, Perl and python scripts to automate the day-to-day tasks.
• Experience in writing infrastructure code using terraform on multiple cloud providers like AWS, Google, DigitalOcean.
• Build and configured Red Hat Satellite server to be used for patch and upgrade management for datacenter Red Hat servers.
• Working experience in container based deployments using Docker, working with Docker images, Dockerhub and Docker registries.
• Experienced in maintenance of source code repositories management systems, such as GIT, SVN, Bitbucket, and IBM ClearCase applications.
• Extensively worked on build tool such as ANT and Maven for the building of deployable artifacts (war & ear) from source code.
• Experienced in configured and maintain web application servers like Apache, Tomcat, WebLogic.
• Have tested various Linux environments in the Development/Test Stages, help to creating a better standardized environment and resolutions of any problems if any occurred

TECHNICAL SKILLS:

Operating Systems: Red hat Linux, Centos, Suse Linux, Solaris 10/9/8, HP-UX, IBM AIX Windows NT /2000/2003, MAC OS X.

Cloud infrastructure: AWS, Rackspace, soft layer, Terraform.

Version Control tools: GIT, CVS, Subversion (SVN), Clear case.

Virtualization Technologies: VMware Workstation, Citrix Xen Server.

Configuration Management Tools: Puppet, Chef, ansible

Build Tools: ANT, Maven, Griddle. Rundeck.

CI/CD Tools: Jenkins, Bamboo, Travis.

Monitoring tools: Nagios, Zabbix, Tivoli, Cacti, New Relic.

Bug Tracking: Jira, Rally, IBM ClearQuest.

Databases: MySQL, Mango DB, Cassandra DB, Oracle 9i/10g, SQL SERVER, PostgreSQL.

Networking: TCP/IP, NIS, NFS, FTP, DNS, DHCP, SMTP, SSH.

WEB Technologies: Tomcat, Apache, JBoss, Web Logic, Web Sphere, Java Script, Servlets, JDBC, JSP.

Programming & Scripting: C#, ASP.Net, XML, HTML, Bash & Shell Scripting, Perl Scripting, Python, Ruby, VB.

Backup Management: VERITAS Netbackup, Ufsdump, Symantec Netbackup.

Third-party Software: VERITAS Volume Manager, VERITAS Cluster Service (VCS), HP, Sun Cluster, EMC Storage, RAID Technologies, SSL.

Protocols: TCP/IP, UDP RIP, OSPF, EIGRP, IGRP, SNMP, SMTP, TELNET.

PROFESSIONAL EXPERIENCE:

Confidential, Palo Alto, CA

Devops/Linux System Engineer

Responsibilities:

• Worked on install and configure of Red Hat, Oracle Linux and server builds during the upgrade.
• Experience in vSphere ESXi 5.x, 6.x host and creating and managing VM’s on VMware VCenter.
• Strong experience in writing Puppet modules for automated deployments on application. Install of packages and services.
• Strong experience on AWS infrastructure, EC2, S3 , Elastic Load Balancing and other services.
• Installing and configuring SSL certs through secure https port on Red hat Linux servers.
• Worked on solving performance related issues of application such as deployed patches for Red Hat, CentOS, Oracle Linux, Debian Linux and web application servers.
• Worked on Installation and configure VMware and monitored Virtual environments with VMware ESXi servers and VCenter.
• Worked on Continuous Integration and Continuous deployment process implementation using Jenkins along with Shell scripts to automate routine jobs.
• Experienced in installing and configured open source tools like Nagios, OSSEC, Splunk for server monitoring and infrastructure monitoring.
• Worked on kickstart- provisioning and lifecycle management for Linux using custom Bash scripts.
• Troubleshooting of day-to-day system and user problems on different platforms of various servers.
• Experience in migration of bulk amount production RedHat, Ubuntu servers to AWS environment.
• Strong experience in building Puppet modules, and configured Apache, Tomcat webserver in the Linux AWS Cloud environment using Puppet automation
• Performed application installation and management on Linux servers for applications like JBoss 4.2.x, 5.x, Oracle.
• Worked on implementing automated builds on Jenkins , and deployed across the different regions.
• Implemented virtual machine clones and templates, plan and implement VMware Fault Tolerance.
• Experience in Configuration, Administration and maintenance of NFS, DNS, NIS on Linux Servers.
• Supported AWS Cloud environment with EC2 instances and configured Elastic IP, VPC, Elastic storage and also experience in implemented security groups.
• Experience in Managing system installation, troubleshooting, maintenance, and performance tuning, storage resources, network configuration to fit application and database requirements.
• Worked on branching, tagging, and maintaining the version across the environments using SCM tools like Git, SVN and Bitbucket on Linux and windows platforms
• Experience in Installation, configuration and administration of Red Hat Enterprise and CentOS.
• Installing RPM packages on Red hat Linux Servers and applying patching on RHEL 6 & 7 versions.
• Experienced in Python, and shell scripts used to automate and monitor the build deployment tasks.
• Worked on installation and configure F5 load balancer and firewalls with LAN/WAN configuration.
• Experience in creating LVM (Logical Volume Manger) and performed system Backup and Recovery.
• Responsible for Backup and Recovery operations of various servers using VERITAS Net Backup.
• Strong experience on Infrastructure & Configuration Management tools like Puppet and experience on Puppet modules development.
• Maintained and monitoring System Activities like CPU, Memory, Disk and Swap space usage to avoid any performance issues.
• Experience in installation and configuration of Docker including Docker registry hub for managing different Docker images and deployment of applications inside the containers.
• Worked on Factor to define custom facts using Ruby and shell scripts. Configured and maintained Puppet DB , and integrating it with Postgres DB as the backend server to export resources.
• Strong experience in AWS Cloud in various services such as Redshift Cluster, Route 53 domain configuration.
• Experience in configuration of PostgreSQL, and Cassandra database on Debian Linux Servers.
• Experienced in tasks like managing User Accounts and Groups, managing Disks and File systems.
• Experience on configuring DNS, DHCP server and Managed LVM on Red hat Servers.
• Worked on OS patching on Red Hat servers using Red Hat Satellite Server 5 and 6 infrastructures.

Environment: RedHat enterprise 6.x, 7.x, CentOS, Ubuntu 13.04, 16.04, VMware 5.x, 6.x, GIT, kickstart, Apache, Tomcat, Jboss, Python, Puppet, Shell, F5 Load balancer, SVN, DHCP, DNS, Terraform, ANT, Maven, Jenkins, AWS, EBS, ELB, VPC, IAM, S3, Route53, Redshift, Bash, PostgreSQL, Cassandra, Docker, Nagios, Splunk, OSSEC, LVM.

Confidential, Charlotte, NC

Devops/ Linux Engineer

Responsibilities:

• Worked for configuration of Red Hat Linux, oracle Linux and Maintenance of new server builds during the upgrade.
• Experience in GIT for version control to manage Puppet source code and revisions in a repository.
• Worked on AWS Cloud Formation templates to create custom sized VPC, EC2 instances, ELB, Security Groups.
• Worked on Continuous Integration and Continuous deployment process implementation using Jenkins along with Shell scripts to automate routine jobs.
• Actively involved in configuration of Puppet open source with several third parties’ applications.
• Experienced building infrastructure using Puppet automation, and install SSL certs through secure https port on Red hat Linux servers.
• Worked on configuration and maintenance of puppet management system.
• Strong experience on scripting skills in Python, Perl and Shell for automating AWS infrastructure.
• Experience on deploying hosted Puppet-Server on AWS for managing AWS EC2 instances.
• Experienced in tasks like managing User Accounts and Groups, managing Disks and File systems.
• Worked with Dockers and Vagrant for different infrastructure setup and testing of code.
• Experience in Managing system installation, troubleshooting, maintenance, and performance tuning, storage resources, network configuration to fit application and database requirements.
• Developed a Perl script for provisioning Apache and Tomcat web app servers.
• Created JDBC connections between Data base and JBoss console, and deployed applications war file through JBoss console.
• Worked on Supported and maintained Red Hat Satellite Server 5 and 6.
• Experience in using Amazon AWS API tools like: Command line Puppet integrated API tools.
• Strong experience in writing Puppet modules to automate configuration of a various services.
• Experienced in using build tool such as Maven for the building of deployable artifacts (war & ear) from source code.
• Worked on configuring DHCP server and Managed LVM on Red hat Servers.
• Experience in installing, configuring, and troubleshooting Apache and Tomcat application server.
• Worked on EMC storage for the virtual machine.
• Monitoring Disk space, adjust VXVM Configuration& add space as and when needed.
• Familiarity with install and configuring and using a for Red hat Linux and HP-UX servers.
• Experience in fix bugs and changes into a production environment using the JIRA tracking tool.
• Created Jenkins pipeline and troubleshoot the build issue during the Jenkins build process.
• Actively involved in deployments on Docker using Kubernetes
• Experience in design micro services deployment using Docker.
• Experience in configure YUM REPO and Performed installation of patches using RPM and YUM.
• Performed application installation and management on Linux servers for applications like JBoss 4.2.x, 5.x, Oracle.

Environment: OEL 5.x/6.x, RHEL 5.x/6.x, Cent OS 5.x/6.x, Windows Servers 2k8r2/2012, ESXI 5.1/5.5, VMware VCenter & Vsphere, Jenkins. Puppet, AWS, ANT, MAVEN, GIT, SVN, LVM, Samba, Winbind 3.x, Centrify, NFS, NIS, JDK 5.x/6.x/7.x, DIG, netstat, Docker, SSH, nslookup, tcpdump, puppet, Python, Perl, Bash, Shell, Tomcat and Apache.

Confidential, San Diego, CA

Linux Admin/ Build Release Engineer

Responsibilities:

• Primary support to all kind of issues on IBM AIX Unix and Red Hat Linux, Debain environments.
• Experience in installing and configuring server in vSphere 4.1, 5.0, 5.1, ESXi 4.1, 5.1 on VCenter.
• Experience in created Continuous Integration and Continuous Deployment pipeline using shell scripts on Jenkins.
• Worked on Launching Amazon EC2 Cloud Instances using Amazon Images (Linux/ Ubuntu) and Configuring launched instances with respect to specific applications.
• Experienced on writing Chef Cookbooks for deploy web applications on production environment.
• Worked on Installed and configure Chef on production environment automated deployments using Chef Hiera, and Ruby scripting.
• Experience in the automation of AWS infrastructure via Terraform software and micro services configuration via chef cookbooks.
• Responsible in building and startup shell scripts, managing the automation of CRON jobs.
• Developed Chef Cookbooks for deploy web applications on production environment.
• Extensive usage of cloud server instances and storage from Amazon web services (AWS) to enable client web applications.
• Worked with Red hat, Oracle Linux for finding root cause on kernel panic issues on infrastructure.
• Experienced writing Chef Cookbooks for installation and configuration of third party applications.
• Responsible production support of LDAP, Domain users, Users and groups and given appropriate permissions, shares and privilege to access LAN and Domain environment.
• Designed and Implemented Cloud Orchestration solution using AWS infrastructure on Docker.
• Working experience in Install and configuration of Web Application Server Tomcat and Apache.
• Chef configuration management to automate the applications across the AWS infrastructure.
• Extensive experience in using build tool such as ANT for the building of deployable artifacts.
• Experience in of Remedy ticketing system and applying patching using Red Hat Satellite servers.
• Current project used Subversion as version Controller for maintaining the versions of source code.
• Wrote various Chef Cookbooks for deployment, automation.
• Experience in automated data loading, extraction using Shell, Perl and Python automated scripting.
• Supported for AWS cloud instances running Ubuntu, Red Hat Linux and Windows environments.
• Worked on Apache application server for deploying the artifacts and using Chef automation.
• Configuration, Administration and maintenance of NFS, DNS, NIS, on Linux Servers.
• Developed chef recipes for various applications and deployments on AWS EC2 using Terraform.
• Create managed user's accounts and configured Sudo and enable SSH for secure access for servers
• Configured the Network Standard Switches, vSS Policies, and Shared storage for vSphere.
• Experienced on working with JIRA for change management system and bug tracking infrastructure.
• Manage Virtual Machine Clones and Templates, plan and implement VMware Fault Tolerance.

Environment: RHEL 4/5, IBM AIX 5, AIX 4.x, HP-UX, Chef, Git, AWS, M4000/M500E 4500/, E35000, Hitachi 9980v, ESX 4.x, SVN, kickstart, usfdump, NFS< VERITAS Volume Manager, WebSphere, Cassandra DB, WebLogic, JBoss, Tomcat, DNS, netstat, Perl, Docker, Jenkins, Jboss, PostgreSQL, nslookup, DIG, SMTP, MYSQL, RDBMS, samba Winbind, Python, LAMP, Kron, Bash.

Confidential, Lansing, MI

System Engineer

Responsibilities:

• Administration and maintenance of Red hat Linux, Suse Linux servers and Windows 2000 servers.
• Working experience in virtualization technologies like Citrix XEN Desktop and VMware VCenter.
• Experience in configuration, maintenance of Oracle and PostgreSQL Databases and performance tuning and troubleshooting.
• Worked on User administration setup, maintaining account, Monitor system performance.
• Writing chef recipes for various applications and deploying them in AWS infrastructure.
• Expertise in enterprise Active Directory Domain Controller design.
• Experience in windows administration, Active directory, exchange server 2000/2003/2007.
• Support over Perl, bash and Python Scripts for web based applications.
• Experience in participating NAS to NAS migrations, and P2V, V2V in using VMware converter.
• Worked on Install and configuration of DHCP, DNS, BIND, web mail SMTP, IMAP, POP3 on AIX and, Debain Linux servers.
• Configured RAID mirroring on various Linux flavors Debain, SUSE Enterprise Linux platforms.
• Maintained and monitoring System Activities like CPU, Memory, Disk and Swap space usage to avoid any performance issues.
• Configuration and Administration of Load balancers and F5's, taking servers in out of rotation.
• Experienced install, integrating, tuning and troubleshooting Apache and Tomcat application server.
• Performed installation on Suse Linux servers for applications like JBoss 4.2.x, 5.x, Oracle.
• Managing IT department's LAMP stack and configuration management.
• Provided documentation, development and management of web products and interfaces for retail processing. Programmed user interfaces that combined System platform with LAMP.
• Configuring, administering and troubleshooting of NFS, autoFS (Direct and Indirect Maps), NIS (master, slave and client) and DNS in multi-platform networks.
• Enabled SSH, SFTP and SUEXEC access for functional accounts on Linux and IBM AIX Servers.
• Implemented virtualization using VMware in Linux on HP-DL585 and IBM-z/VM series.
• Modified the Linux kernel parameters to add tracing probes for configuration access tool.
• Experience in provided 24x7 production support for Apache and JBoss web applications servers.
• Data warehousing and System Backup using tar, cpio for local systems and Veritas Netbackup for enterprise wide backup and recovery.
• Implemented day-to-day tasks in Red Hat Linux that include upgrading rpms, kernel, HBA driver, configuring SAN Disks, multipathing and LVM file system.
• Manage systems using remote consoles like ILO for HP Hardware and HMC for IBM P-Series
• Working experience on the configuration of mail servers using Send mail 8.10.x, 8.11.x protocols.
• Worked on Install and configure SSH to enable secure access and worked on iptables to the servers.
• Modified the Linux kernel parameters to add tracing probes for configuration access tool.
• Experience in Shell scripting bash to automate system administration task and improved efficiency.

Environment: RHEL 4/5, Solaris 8/9, IBM AIX 4/5, AIX 4.x, Suse, SUN E10K, M4000/M500/5000, E35000, Hitachi 9980v, ESX 4.x, kickstart, usfdump, NFS, VERITAS, web sphere, WebLogic, JBoss, Cisco IOS, Tomcat, DNS, netstat, nslookup, DIG, SMTP, MYSQL, RDBMS, samba, LAMP, Kron, Bash.

Confidential

Linux Administrator

Responsibilities:

• Experienced on install and configuration of different flavors of Red Hat Enterprise, CentOS, and AIX Linux.
• Expertise in maintenance and monitoring of VMware ESX servers and VM’s using VSphere client.
• Installation and configuration of HP-UX server as a firewall and Internet proxy server.
• Experienced in writing security rules for firewalls and block unwanted traffic on infrastructure.
• Worked on scheduling of Daily, weekly, Monthly backups using Omni Backup, VERITAS Net backup 3.4 and TSM Backups.
• Implementation of Samba to help printing and file sharing in the mixed Environment.
• Experience in remotely managed Linux servers using ILO, IDRAC, and virtual console center.
• Design, implementation and regular maintenance of VXFS, VVM and VERITAS Cluster, Service guard Packages, load balancing.
• Configured subnets and managed networking between Linux and Windows infrastructure.
• Experience in provided 24x7 production support for Apache and JBoss web applications servers.
• Developed Korn and Bash shell-scripts to automate routine activities.
• Troubleshoot the automation of Installing and configuring applications in the test environments.
• Worked on Implementation of Samba to help printing and file sharing in the mixed Environment.
• Deployed latest patches performed kernel tuning on different flavors of Red Hat Linux, Ubuntu.
• Have experience in working with various HP-UX machines which hosts various messaging services like mailing lists, mass email systems, and IMAP services.
• Configuration and administration of FiberCard Adapter’s and handling of SAN arrays, HITACHI.
• Experience in Shell Scripting for automating the System Admin tasks.
• Installation & Maintenance like replacing bad disks including bootable disks, OS, patch installation, Configuration of DNS, auto mount, and NIS and NFS services.
• Created users, printers and assigned user profiles and responsibilities to users.
• Linux kernel, memory upgrades and swaps area and performed Red hat Linux Kickstart PXE boot installations.
• Troubleshooting VMware ESX server related issues, maintaining their virtual server environment, creating and deleting virtual servers.
• Manage systems using remote consoles like ILO for HP Hardware and HMC for IBM P-Series.
• Experience in maintenance of PostgreSQL database, and firewalls in both DEV and Production.
• Excellent working knowledge in implementing LDAP security models using Netscape LDAP and IBM secure way (LTPA).
• Network trouble-shooting using ‘ping’, 'traceroute', 'netstat', 'ifconfig' and 'snoop', ‘nslooku’ etc.
• Provided support by 24x7 shift rotation basis and pager support.

Environment: Red Hat Linux 5.1, CentOS 4.6/4.7, HP-UX, IBM X-series and IBM Blade JS 21 X series 3755, Red Hat Enterprise Linux 3/4/5, Samba, EMC, manager, Veritas Net backup, NFS, SANVMware, shell, IDRAC, NIS, IMAP, DNS, TSM.