SUMMARY

• Over 7+ experience as system administrator on DevOps, RedHat EL 4.x, 5.x, 6.x, 7, Debian, Ubuntu, CentOS 4.x, 5x, FreeBSD, Solaris 8,9, 10, 11, HP - UX, AIX and Windows server 2000/03/08 environment.
• Highly experienced in configuring servers like DHCP, DNS, LDAP, FTP, SFTP, Web Server (Apache), App server (Tomcat, WAS), Mail server (Postfix, Sendmail), Proxy server, NFS, NIS and Samba.
• Extensive experience with RAID using Volume Management Software like Logical Volume Manager (LVM), Veritas Volume Manager (VVM), Solaris Volume Manager (SVM).
• Experience of Clustered environments (RHEL cluster suite, VCS, HACMP, GPFS)
• Experience with KVM, Oracle VM and VMware virtualization platforms.
• Experienced in implementing and administering VMs using VMware ESX 3.1 and vSphere 4.x and vCenter and building KVM Hypervisor. Also worked with Solaris 10, 11 LDOMs and zones to implement virtualized environments in the Solaris servers.
• Extensive experience with Kickstart in RedHat, Jumpstart in Solaris, Ignite in HP-UX.
• Experience with Identity and Access Management system across all the enterprise platforms on the user, services, applications and network levels with access control, digital certificates, password management, security tokens, network protocols and single sign-on, etc.
• Proficient in installing, and managing central Syslog server for managing server logs, used Logrotate for clearing old logs.
• Experience in Active Directory, GPOs, DNS, DHCP, File & Print Server, IIS (Web Server), FTP, Terminal Server, Microsoft Clustering and Exchange Mail Server in Windows based server environment.
• Experienced in Installation of Operating Systems, Packages and Patches, adding peripherals, maintaining user accounts, System Security maintenance, backup/recovery, performance tuning, troubleshooting at various levels etc.
• Administered Backup and Restore operations using Veritas NetBackup 5.1.
• Security management like performing security health checks as per policies/procedures, patching the servers based on the advisories for the applications and operating systems.
• Experience in deploying and managing Apache/Tomcat applications with automatic configuration management tool Puppet and Chef.
• Configured and managed Apache Web Server on Linux for web based applications using REST/SOAP and virtual machines on Cloud using OpenStack.
• Experienced in writing / modifying shell scripts using Bash, Perl, Python and buildautomationusingANT, NANT, MAKE, MAVENand otherUNIX, Windowssystem level programming.
• Extensive experience with Hudson/Jenkins and JetBrains TeamCity for Continuous Integration, Sonatype Nexus as Artifactory server and Atlassian Confluence and Jira.
• Extensive experience with Docker Engine, Docker Machine, Docker Client, Docker Images, Docker Swarm on different environment such as Windows, Mac and Linux.
• Practical experience in using IDE tools such as Netbeans, Eclipse, and application servers such WebSphere, WebLogic, JBoss and Tomcat.
• Extensive experience with Software Configuration Management, Build/Release Managementusing Source Depot, CVS, Subversion, Git, etc.
• Extensive experience in Amazon Web Services (AWS) and its services, maintaining and improving infrastructure, split between physical data centers and AWS.
• Experience in using AWS EC2, S3, AWS Route 53, AWS CloudTrail, AWS CloudWatch, AWS Glacier, AWS Identity and Access Management, AWS Elastic Load Balancers (ELB).
• Implemented AWS cloud deployment with Puppet and Ansible using web services.
• Designed and developed new back-end services, maintaining and expanding our AWS infrastructure. Ability to document strategies and designs and present to these ideas to management with cost-benefit analysis.
• Installation of IBM Websphere Messaging Queue(MQ) application and Qpasa monitoring tool and creating Queue managers and queues.
• Experience in installation, configuration and administration of Oracle 9g/10g/11g database.
• Experienced in installation, configuration, design and ongoing maintenance of Cisco router and switches.
• A quick learner with excellent problem-solving and interpersonal skills.
• Self-motivated, goal-oriented, good team player, and highly adaptive to changes.

TECHNICAL SKILLS:

Operating System: Linux (RHEL, Debian, CentOS, Suse, Ubuntu), FreeBSD, VMWARE ESX, Solaris, MS Windows server.

Hardware: Sun Enterprise E 5000/5500/6500 , Sun Fire 3800/4800/6800 , E10K/15 Series server, T Series, M Series Servers, HP-9000, rx8640, rp7420, rp8420, N-Class, L-Class, D-Class, K-Class, Oracle RAC/ASM, EMC Power path, DELL PowerEdge 6650, HP Proliant DL 385, 585, 580, Sun Fire v440, SUN BLADE X6250, X6270.

Third Party Tools: Veritas Volume Manager, Logical Volume Manager, RAID, Veritas Cluster, Redhat Cluster, VMware ESXi Technologies, AWS EC2, AWS Glacier, AWS Identity and Access Management, AWS CloudTrail and AWS CloudWatch, AWS LoadBalancer, HAProxy Load Balancer, Docker Engine, Docker Machine, Docker Swarm, Docker Compose, JetBrains TeamCity, Sonatype Nexus, Jenkins, Sonatype Nexus, Puppet, Chef, GIT Ansible, Atlassian Jira, Atlassian Confluence. vSphere 4.0, OpenStack, Fuel, Puppet, Chef, Websphere MQ, QPasa monitoring tool, Tumbleweed/Axway, DemonAgent.

Application/WebServers: IBM Websphere, WebLogic, Tomcat application server, Apache web server.

Protocols and Services: TCP/IP, TELNET, FTP, SSH, SCP, ARP, DHCP, SMTP, TFTP, NFS, DNS, LDAP, NIS, Network Essentials-OSI, LAN/WAN, Switches, Hubs, Fiber Channel and iSCSI.

Automation/Scripting: Kickstart (Linux), Jumpstart (Solaris), Bash / Korn / Bourne, Perl, Python

Databases & Languages: Oracle 8i, 9i,10g,11g, MySQL, SQL Server, PL/SQL, C, C++, JavaScript, PHP, Ruby

PROFESSIONAL EXPERIENCE:

Confidential, Nashville, TN

Cloud System Administrator

Responsibilities:

• Design and run the migration project of multiple batch applications platform from Solaris to Linux shared batch servers.
• Support application teams in the migration process and guide them throughout the whole process of getting NAS storage, mount them, create load balancer, create filesystems and user accounts.
• Support application teams with Autosys job changes and deployment tasks as well as assist in hardware evaluation, infrastructure builds, integration and deployment of new software and databases as requested by application teams.
• Configure file system protocols like SFTP and FTP as requested by application teams and monitor and maintain the NIS, DNS, NFS and mail servers (Postfix, Sendmail, IMAP, POP)
• Set up and maintenance of Linux based firewall and network distribution using Iptables and Squid.
• Design and involve in migration of Mainframe trigger jobs from Autosys servers to new batch servers.
• Write Bash scripts and Perl to automate the processes and perform Kickstart and Jumpstart automatic installation on Linux and Unix servers.
• Perform tasks related to managing Disk Storage using Logical Volume Manager, SVM and VVM commands to create, grow, and/or mirror new volumes and file systems.
• Monitor system processes, CPU loads, Memory usage, disk space and daily logs and resolve the issues in case.
• Administered AWS and Linux server automation and utilized Amazon Web Services (AWS) for cloud automation.
• Implemented AWS cloud deployment with puppet using web services.
• Experience in multi region replication, AWS Identity and Access management for user management, AWS Glacier for backing archive files, AWS CloudWatch for monitoring Resources and Applications and AWS CloudTrail to track user activity and API usage.
• Experience in Elastic Load Balancing (ELB) for region wide load balancer, ELB EC2 health checks and Autoscaling of EC2 instances on demand.
• Designed and developed new back-end services, maintaining and expanding our AWS infrastructure, and providing mentorship to others on my term.
• Installation and configuration of JetBrains TeamCity and Jenkins server for continuous integration.
• Installation and configuration of Sonatype Nexus server as an artifact server.
• Experience in Ansible for configuration management, playbooks for automatic deployment, Ansible playbooks for server provisioning.
• Experience in writing Ansible playbooks roles and configuring various services such as Apache webserver, apache tomcat server.
• Experience in automatic deployment on ClearData Infrastructure.
• Deploy applications with Automation and Configuration management tool Chef.
• Installation and configuration of remote log management using FileBeat, LogStash, ElasticSearch and Kibana etc.
• Experience with Subversion, VCS and GIT as version control for scripts.
• Deployed distributed Jenkins environment for continuous integration/builds.
• Worked with OpenStack tool Fuel for automation of deployment and management of virtual machines in large scale on datacenters.
• Configuration/management of Web Server for web based applications using REST/SOAP.
• Experience in using Atlassian Confluence for Team Collaboration and Atlassian Jira for Issue and Project Tracking software.
• Involve in migration of Websphere MQ applications from distributed to mainframe platform and also support shared infra MQ platform.
• Install Websphere MQ software, create Queue Managers and Queues and configure them.
• Install QPasa monitoring software on servers and DemonAgent to automate the process of compliance reporting for audit purpose.
• Manage SFTP file transfer application Tumbleweed/Axway and supported the messaging applications hosted on them and worked on remediation of POODLE vulnerability in SSLv3 connections.

Environment: Red Hat Enterprise Linux 6.x, Sun Solaris 10/11, Autosys, LVM, SVM, VVM, AWS, Fuel OpenStack, SOAP/REST, GIT, Subversion, IBM Websphere MQ, QPasa, Tumbleweed/Axway, Oracle 11g, Bash, Perl. Apache/Tomcat, Zabbix, Jenkins, JetBrains TeamCity, Sonatype Nexus, Chef, Puppet, Maven, GIT, Ansible, FileBeat, Logstash, ElasticSearch, Kibana, Confluence, JIRA

Confidential, Fort Worth, Texas

DevOps/Cloud System Administrator

Responsibilities:

• Building Physical as well as Virtual (VMware) Servers.
• Mass Build of Linux/Solaris OS servers using kickstart /jumpstart automation application.
• Installation of Oracle 11g and Sybase open-client, Apache 2.x on Linux environment.
• Creating and cloning virtual machines in VMware environment using Virtual Infrastructure client 3.5 and Vsphere 4.0.
• Creating logical volumes, extending the filesystems using LVM and SVM.
• Set up user and group login ID's, printing parameters, network configuration, password, resolving permissions issues, user and group quota.
• Patch Management, Package Installation/Upgrades and Kernel upgrades
• Monitored System Activities like CPU, Memory, Disk and Swap space usage to avoid any performance issues.
• Administered Microsoft’s cloud-based Azure Active Directory (AAD) as the identity and access management across the platforms.
• Deployed Puppet, Puppet Dashboard, and PuppetDB for configuration management to existing infrastructure.
• Wrote puppet manifests for deploying, configuring and managing collectd for metric collection and monitoring.
• Refactored puppet manifests to reflect best practices, wrote puppet modules for various services such as installing and managing java versions, upgrading kernel, managing persistent ssh tunnels and various other services.
• Administered AWS and Linux server automation and utilized Amazon Web Services(AWS) for cloud automation.
• Implemented AWS cloud deployment with puppet using web services.
• Experience in multi region replication, AWS Identity and Access management for user management, AWS Glacier for backing archive files, AWS CloudWatch for monitoring Resources and Applications and AWS CloudTrail to track user activity and API usage.
• Experience in Elastic Load Balancing(ELB) for region wide load balancer, ELB EC2 health checks and Autoscaling of EC2 instances on demand.
• Designed and developed new back-end services, maintaining and expanding our AWS infrastructure, and providing mentorship to others on my term.
• Designed and deployed OpenStack using redhat packstack tool on our internal physical data centers and troubleshooting issues related to openstack deployment for OpenStack Nova, Swift, Keystone, Neutron, Cinder and Glance services.
• Experience with openstack command line tools for troubleshooting issues and some knowledge with other openstack deployments tools such as devstack, mirantis fuel, and manual installation, manageiq for managing private and public cloud infrastructure etc
• Experience in bash, ruby and python scripting languages for administrative jobs.
• Experience in ruby which enables to write puppet and chef code, develop ruby on rails apps if needed and also to write advanced sysadmin type scripts using ruby.
• Designed and developed automated deployment and scaling processes based on vagrant and CHEF for a wide range of servers and application tiers.
• Implemented automatic application deployment using CHEF as configuration management tool.
• Designed and Implemented AWS cloud formation using CHEF for multi-tier application stack deployment.
• Redesigned and redeployed the Nagios implementation. Nodes automatically added/removed automatically via Puppet.
• Deployed distributed Jenkins environment for continuous integration/builds. All builds output rpm packages as artifacts.
• Used docker engine to create and run docker containers, docker registry for docker image distribution and to create docker images for application environments.
• Used docker machine to automate docker provisioning, docker swarm to host cluster and container scheduling, docker compose to define multiple contained applications.
• Used Maven build scripts to automate the build process and deployment process.

Environment: Red Hat Enterprise Linux 4.x,5.x, Sun Solaris 8,9,10, VERITAS Cluster Server, AAD, Puppet, PuppetDB, Chef, AWS EC2, ELB, AWS CloudTrail, AWS CloudWatch, AWS Glacier, Ruby, Maven, Docker, Veritas Volume Manager, JIRA, ZFS, Oracle 11g, HP UX, MS Windows Server, Exchange server, Bash scripting, Perl

Confidential, IA

Linux Administrator

Responsibilities:

• Patching of RHEL5, Ubuntu and Solaris 8, 9, 10 servers for EMC Powerpath Upgrade for VMAX migration.
• Configuration of LVM (Logical Volume Manager) to manage volume group, logical and physical partitions and importing new physical volumes.
• Responsible for Building of Linux/Solaris OS servers using kickstart /jumpstart automation application.
• Documented the standard procedure for installation and deployment of VMAX Migration and logical volume manager and Solaris Volume manager.
• Installation, configuration, support and security implementation on following services:DHCP, SSH, SCP.
• Configuration and administration of NFS and Samba in Linux and Solaris.
• Maintained and monitored all of company's servers’ operating system and application patch level, disk space and memory usage, user activities on day-to-day basis.
• User administration on Sun Solaris and RHEL systems, HP-UX machines, management & archiving.
• Installations of HP Open view, monitoring tool, in more than 300 servers.
• Worked with monitoring tools as Nagios and HP Openview.
• Creation of VMs, cloning and migrations of the VMs on VMware vSphere 4.0 and building KVM Hypervisors also Worked in clustering techniques to ensure high availability and GFS deployment.
• Worked with DBA team for database performance issues, network related issue on Linux / Unix Servers and with vendors for hardware related issues.
• Expanded file system using Solaris Volume Manager (SVM) in the fly in Solaris boxes.
• Managed and upgraded UNIX’s server services such as Bind DNS.
• Configuration and administration of Web (Apache), DHCP and FTP Servers in Linux and Solaris servers.
• Configured and maintained mail servers like Sendmail, Postifx and Dovecot.
• Supported the backup environments running VERITAS Net Backup 6.5.
• Responsible for setting cron jobs on the servers using Bash shell scripting as well as Perl
• Decommissioning of the old servers and keeping track or decommissioned and new servers using inventory list.
• Handling problems or requirements as per the ticket (Request Tracker) created.
• Participated in on-call rotation to provide 24X7 technical supports.

Environment: Red Hat Enterprise Linux 4.x, 5.x, 6.x, Ubuntu, Sun Solaris 8, 9, 10, VERITAS Volume Manager, SVM, ZFS, Oracle 11g, Samba, Oracle RAC/ASM,EMC Power path, DELL PowerEdge 6650, HP Proliant DL 385, 585, 580, Sun Fire v440, SUN BLADE X6250, X6270.

Confidential - Tampa, Florida

Unix/Linux Administrator

Responsibilities:

• Installation and Configuration of Redhat ES, CentOS, Solaris 8, 9, 10, SLES 9, 10 and Windows servers.
• Installation, configuration and management of Apache and Tomcat servers.
• Performing Nessus Scan on quarterly basis to scan for vulnerabilities in Web and Application servers.
• Applying patches to fix the holes that are found during the quarterly scan basis using Nessus scan.
• Upgraded and maintained servers, operating Systems and patches.
• Install/configure/maintain the Linux /Solaris servers, NIS, DNS, NFS, Mailing List, Sendmail, apache, ftp, sshd.
• Managed NetaPP FAS 920 Storage and implemented RAID.
• Configuring and managing Novell HA cluster in SLES 10.
• Configuring and optimizing open-iSCSI in RHES for SAN using iOmega technology.
• Install host firewall IPTables for Redhat Linux.
• Installation, configuration Active Directory, Group Policy, Migrations, Security GPOs, DNS, DHCP, File & Print Server, IIS (Web Server), FTP, Terminal Server, Microsoft Clustering and Exchange Mail Server in Windows based server environment.
• Installed and configured SAMBA server for Windows and Linux connectivity.
• Performed TCP/IP, DNS and DHCP administration.
• Setting up Oracle 10g server in Linux/Unix environment.
• Supported Oracle DBA in the implementation of Oracle 9i RAC.
• Installed and monitored administering and monitoring tools such as Webmin and Nagios.
• Maintained and monitored all of company's servers’ operating system and application patch level, disk space and memory usage, user activities on day-to-day basis.
• Performed routine LVM tasks like replacing failed drives, adding new volume groups, extending volume groups/LVM/file system, exporting and importing volume group for hardware migration.
• Administered Backup and Restore operations using Veritas NetBackup 5.1.
• Monitored and fine tuning system and network performance for server environments running Redhat Linux, Solaris.
• Troubleshoot various systems problems such as application related issues, network related issues, hardware related issues etc.

Environment: Red Hat Enterprise Linux 4.x,5.x, CentOS, Debian, Cisco, Veritas Cluster Server, Oracle 9i, MS Windows 98/2000/NT/XP, Oracle RAC/ASM, Porta-one soft switch, MS Windows Server 2003, 2008.