SUMMARY

• Over 10 Years of specialized IT experience in AIX/Linux/Solaris/Windows/Devops/cloud
• Experienced in installation, configuration, administration, troubleshooting, tuning, security, backup, recovery and upgrades ofIBMAIX 5x, 6x, 7x, Win NT/2000 Server &Linux(Red Hat 5.5/6.3/7) in a large environment.
• Experience in monitoring the availability &performance of AIX, Linux Serversthrough tools like vmstat, netstat, svmon, nmon, lparstat, vmstat and iostat.
• Knowledge on P2V and V2V migrations of Linux hosts.
• Working experience with cloud infrastructure of AWS (Amazon Web Services) and computing AMI virtual machines on Elastic Compute Cloud (EC2).
• Regularlyupdated all software and operating systems on the instances running in EC2, to eliminate security loopholes.
• Experienced with cloud formation Templates.
• Experience in Installation and configuration of VMware ESX server 3.5 on Dell and HP Proliant servers and configured VMs for Solaris x86 and Linux.
• Working knowledge of various SMTP Servers - Sendmail 8.12.11, 8.14.2, Postfix 2.x, and Exchange 2000/2003
• Expert in UNIX shell scripting - ksh, bash, sh and knowledge of PERL scripting.
• Experience with patch and package administration including building of packages and RPMs.
• Experience in diagnosing and resolving TCP/IP connection problems
• Experience in performance tuning, trouble shooting and resolving network issues, related to the servers.
• Experience with Solaris virtual technologies Zones and LDoms.
• Experience in administering Webserver Apache and Application server JBoss.
• Experience with switches and routers from various vendors like Cisco, Dell, and HP.
• Experience in making Disaster Recovery and Disaster Contingency Plans; DR with SunGard, SRDF devices.
• Excellent written and verbal communication skills.
• Ability to operate effectively on a 24x7 basis in crisis situations.
• Effective team player with excellent logical and analytical abilities.
• Well Versed in Installing, Configuring Application Servers like IBM Websphere 3.5/4.0/5.0, Tomcat, Apache and Web Servers like IBM HTTP Web Server, MQ, and Apache WebServer, Jboss on AIX and Linux.
• Configuration and maintenance ofNFS, Samba, Sendmail, LDAP, DNS, DHCP and Networking withTCP/IP on Linux and AIX.
• Distributed client requests or network load efficiently across multiple servers
• Experienced with Round Robin, Least Connections, IP Hash for Load balancing
• Configured Elastic load balancers for EC2
• Managed cloud network using Load balancing
• Redirected traffic to the online servers using Load balancing Techniques
• Received delivery excellence award
• Experience with Data Migrations, Replications, Performance and capacity reporting.
• Knowledge in VMware Infrastructure suite including ESXi, VCenter.
• Knowledge in taking care of Emulex and qlogic HBA’s.
• Administration of VERITAS volume manager.
• Disaster Recovery Planning.
• Experienced in using several strategies to control traffic flowing in and out of networks.
• Configured firewalls to filter by several variables: IP address, domain name, protocol, port
• Provided 24*7 Oncall production support based on Shift rotation.
• Enjoy working in a group environment and equally effective working independently.
• Detail oriented and able to balance priorities for tight deadlines
• Strong ability to learn, absorb and use new technologies quickly and work under minimal supervision.

PROFESSIONAL EXPERIENCE

Confidential, Boston, MA

Systems Admin/ DevOps Engineer

Responsibilities:

• Used Legato Networker for backup and recovery
• Wrote Policies for backing up servers worked with both physical and virtual servers
• Did troubleshooting incase of system failure
• Member of MailServer to O365 migration team
• Performed many Virtual to Virtual conversions
• Configured new servers instantly and assigned static IP and DNS after removing DHCP leash •
• Introduced configuration management tool puppet to the team • Experience in RAID levels • Built CI/CD pipeline using tools like Jenkins, GIT, Nexus
• Wrote shell scripts for making repeated tasks automated
• Managed JENKINS and Tomcat using Matrix based permissions for deployment
• Resolved tickets like creating new accounts, login issues, allocating resources, recovery
• Maintained and migrated POSTFIX MailServer, WebServer and databases • Configured LAMP on systems
• Took snapshots and did cloning of servers on VMware ESXi, AWS, Digital Ocean
• Scheduled cron jobs
• Worked with AIT3, LTO4 AND LTO6 Tapes
• Used Nagios and Splunk for monitoring
• Regulate firewall rules blocking IP’S from by manipulating firewall rules.
• Give permissions to users to access the specific directories/files
• Installed and configured LVM
• Did physical move of servers from one place to other
• Did disk partitioning and configured file system
• Involved in Migration of storage server
• Installed and maintained MySQL and Postgres databases
• Installed and maintained httpd WebServer
• Installed, Upgraded and migrated Confluence wiki
• Migrated Twiki, Mediawiki to Confluence wiki
• Performed SFqueries
• Created VPC, security groups, IAM, EC2, cloud formation, CLI, VPC, Lambda, ELB and S3 buckets on AWS
• Technical documentation for projects and daily tasks

Confidential, Parsippany, NJ

Senior Linux / DevOps Engineer

Responsibilities:

• Support for AIX, Windows, and Linux problems assigned by client operations.
• Providing 24X7 and on-call in production support.
• Administration of RHEL 5,6,7 which includes installation, testing, tuning, upgrading and loading patches, troubleshooting on both Pseries and vmware virtualization systems
• Creating, cloning Linux Virtual Machines, templates using VMware vsphere client 5 and migrating servers between ESXi hosts.
• Installing RedHat Linux using kickstart and applying security polices for hardening the server based on the company policies.
• Performed package administration on Linux using rpm and yum thru RHN Satellite and subscription manager.
• Worked on Azure on Microsoft.
• Managed permissions using sticky bit
• Build and configure a virtual data center in the Amazon Web Services cloud to support Enterprise Data Warehouse hosting including Virtual Private Cloud (VPC), Public and Private Subnets, Security Groups, Route Tables, Elastic Load Balancer, CloudWatch, CloudTrail, and Security Management VPC.
• Build application and database servers using AWS EC2 and create AMIs as well as use RDS for Oracle DB.
• Worked on Docker and created virtual instances with Docker.
• Worked on Creating API’s on nodejS and AngularJS
• Worked on AWS opswork, AWS Lambda, AWS code deploy, AWS cloudformation and cloud foundry.
• Install new / rebuild existing servers and configure hardware, peripherals, services, settings, directories, storage, etc. in accordance with standards and project/operational requirements.
• Install, configure and administer log analyzer tool CloudWatch.
• Worked with ANT, maven and JIRA.
• Used Visio to to draw network
• Configure and administer Apache and Application layers
• Configure HTTP caching properties for static caching.
• Automate site configuration using Puppet.
• Experience with shell scripting ( sh, bash, csh, ksh)
• Worked on SIEM for security and audit compliance configuration
• Worked on Docker and have done deployments on Ubuntu.
• Worked with puppet /Chef for configuration management.
• Worked on version control using Github.
• Worked on automating builds using Jenkins.
• Experience with AWS SDK and AWS API.
• Worked on automating tasks using puppet
• Worked on tomcat, jboss install and configuration.
• Worked on mongodb and mysql.
• Worked on migrating Solaris 10/ AIX 6.1 to redhat 6.
• Worked on creating new LPARS on AIX IBM frame
• Worked on ruby and python scripting.
• Automate infrastructure in AWS using amazon web services.
• Installing and configuring Tomcat and JBOSS.
• Deploy puppet to completely provision and manage AWS EC2 instances, volumes, DNS, and S3.
• Performed installation, configuration and tuning of Redhat, CentOS, Solaris servers and AIX.
• Installed and configured Windows 2003/2008 servers and splunk.
• Implemented administration, maintenance, upgrading and monitoring of IT System and networks.
• Installed PXE servers, KickStart configurations for automatic Linux Installation.
• Performed Installation, configuration and administration of Weblogic application servers and Oracle System Bus (OSB).
• Involved in RPM package building according to the requirement using fpm and deploying the package using puppet enterprises to puppet agent.
• Worked on creating queues for new data center and reporting on console for finalization.
• Worked on Amazon web services to create AWS instances with S3 storage and EBS storage.
• Performed Installation, configuration and Administration of VERITAS Volume Manager (VCS).
• Configured and deployed of DynaTrace Monitoring system for managing all the Linux warehouse systems.
• Worked on Siteminder WAM UI on configuration of policy and LDAP.
• Implemented migration from Redhat to CentOS environment. Also Worked on provisioning and optimizing infrastructure resources for Oracle EBS applications on Red Hat Linux
• Implemented virtualization using VMware in Redhat and CentOS on HP-DL585 and IBM-z/VM series.
• Provided support for break/fix incidents.
• Involved in corporate level auditing compliances like system security, network security and installation of recommended patches.
• Performed Data Center migration from AIX to Linux and 5.x to 6.4 Linux upgrade.
• Involved in troubleshooting any reported problems, analyzing heap/thread dumps and network packets taking tcpdump, snoop using wireshark.
• Deployed applications on Jboss (4.2.1, 4.3, 5.1) servers. Worked on creating and scheduling jobs using autosys.
• Used UNIX/Linux shell scripting to automate system administration tasks, system backup/restore management and user account management.
• Implemented and administered In-System Replication using Shadow Image.
• Creation of Oracle and MS-SQL server databases.
• Maintenance of tables paces in oracle.
• Backup and restore of databases in oracle and MSSQL Server DB’s.

Environment: AIX 5x, 6x, 7x, IBM Power7, Power6 and Power5, VIOs, NPIV, RedHat LINUX 5.5/6.3, Ubuntu, Windows, Oracle, DB2, Sun Solaris 9/10,SQLserver, Korn, Oracle RAC, C Shell, Yield Book, Razor, Vsphere, HMC, Tibco, HACMP, GPFS, VMware, CA Spectrum, CA EHealth, Netapp, TSM, Symantec Netbackup, Hitachi VSP, Hitachi Command Suite, Hitachi storage navigator, HUR, SI, TC, TSM, CSM, IBM XIV, SAN SVC, NAS, Autosys, TPM V7.1,CA Service Desk, Apache Webserver, MQ, Websphere Application Server & UNIX shell scripting.

Confidential, San Francisco, CA

Senior Linux /DevOps Administrator

Responsibilities:

• Worked closely with the development and operations organizations to implement the necessary tools and process to support the automation of builds, deployments, testing and infrastructure (infrastructure as code) using Chef.
• Developed Chef recipes to configure, deploy and maintain software components of the existing infrastructure
• Setting up & trouble shooting the nightly/on-demand builds for all Patches/Hot-fixes and for all releases
• Setting up Jenkins Continuous Integration builds for all releases on windows and Linux.
• Involved in meetings with Dev managers to Create, manage and maintain the SCM Plan, standards, and procedures
• Integrated Maven with Subversion to manage and deploy project related tags.
• Setup Maven Remote Internal Secure Repository with access restricted to team members
• Installed and administered Nexus repository to deploy the artifacts generated by Maven and to store the dependent jars which are used during the build.
• Installed and configured Jenkins tools on Linux and windows platforms, Manage slaves and installing Jenkins plugins.
• Streamlined Build process for Fortify scan of code from Manual to Automated mode by setting up Jenkins Automation environment, thus reducing manual error prone, Build time, No logging to machine is required.
• Following agile methodology using RTC as a supporting Tool.
• Administering Hudson/Jenkins CI servers, HP Quality Centre, HP Fortify, Build servers, Code collaborator.
• Had setup one of the build components as a Developer’s Self-service.
• Developed Shell script to list recent ‘n’ number of builds for all the components.
• Installed and configured Sonar server and client configured Jenkins jobs to run Sonar Analysis jobs.
• Worked on Red hatLinux 3, 4, 5 and 6 / Scientific Linux 5 and 6 and Centos 5, 6, Sun Solaris 8, 9, 10.
• ConfiguredBamboo Build jobs for pre deployment process (DB execution, Environment configuration changes etc.) on both QA and preproduction Environments
• Worked with GIT and Subversion to manage source code
• Focused on automation and continuous integration. Automated local development environment using chef
• Used Splunk and Sitescope monitoring tools for the automation process.
• Collaborated with development team to troubleshoot and resolve issues.
• Documented project's softwarereleasemanagement procedures with input decisions.
• Automation of daily tasks using Shell and Perl scripts.
• Deployed the static content to apache web servers and applications to Tomcat Application server.
• Used JIRA as a Change Management/ Work Management/ SCRUM Agile Tool.
• Build, configured and support Application team environments.
• Established processes and tools to maintain code base integrity, including check-in validation rules and branch/merge processes.
• Spearheaded unit testing of developer code; collaborated effectively with local / offshore teams and users to ensure code met client requirements and achieved targets for application functionality, stability, and availability.
• Resolved many Application Startup problems, PATH problems, and Name conflicts, TCP/IP, LAN /WAN, Sys logging and Networking Problems.
• Installed Patches/Packages on and Solaris Servers and RPM packages on Linux Servers.
• Monitored and fine tuning system and network performance for server environments running Solaris, Redhat Linux.
• Created and managed filesystems, disk partitioning and disk space related issues on Windows and Linux servers.
• Experienced in troubleshooting various log issues on TOMCAT, JBOSS and ZENDservers through log rotation and secure removal of older logs.
• Identified and worked with troubleshooting issues related to CPUs usage, bumping cores as well as decommissioning old servers.
• Ensured compliance to established procedures with regards to operational and application documentation.
• Supported Fortify scan and Code coverage activities.
• Developed server-side and client-side hooks/scripts as well as other glue software to customize Git and tie in with other tools such as code review tools(gerrit), defect tracking(JIRA), build management(Continuous integration server-Hudson), etc.
• Installed and configured Websphere application servers. Deployed Java based application in Websphere application servers.
• Automated the provisioning of Tomcat app instances, Apache web instances through puppet

Confidential, Miami, FL

Linux System Administrator

Responsibilities:

• Building, Installing, Configuring Sun/HP/Dell servers from scratch with OS of Solaris (10/8) and Linux (Red Hat 6.X, 5.X, 4.X).
• Installation and Configuration of Mail server of Sendmail, and Postfix.
• Installation, configuration and maintenance of Virtualization technologies such as VMware and zLinux.
• Design, development, and implementation of the package and patch management process.
• Troubleshooting the VM machines using Virtual center and VMware Infrastructure client.
• Cloning and troubleshooting VM ESX hosts and guest servers.
• Implementation of RAID techniques and the creation of Disk groups and volumes, plexes using VERITAS Volume Manager, Solstice Disc Suite and logical volume manager managing disks and file systems.
• Installation, Configuration and Administration of High Availability VERITAS Cluster Service for redundancy purpose.
• Designed, built and implemented a SystemImager for Linux.
• Installation, setup, configuration, security administration and maintenance for flavors of servers like Active Directory, NFS, FTP, Samba, NIS, NIS+, LDAP, DHCP, DNS, SMTP/Mail Server, Apache Servers, Proxy Servers in heterogeneous environment.
• Worked on solaris10 container technology, created non global and global zones, modified non global zone parameters.
• Writing Shell scripts for system maintenance and automation of server.
• Creation of Virtual machine in the vSphere client.
• Worked on large Data Center Migration Project. Migrated Linux/Unix Servers from one data center to other data center with minimal downtime. Involved in P2P, P2V and V2V migration.
• Monitor performance and resource utilization of key systems and provide ongoing trend analysis for forecasting future resource requirements
• Monitoring System performance and do kernel tuning to enhance the system Performance.
• Proactive maintenance on systems by timely scheduling of at jobs, batch jobs and cron jobs.
• Worked with Netbackup team to maintain backup on the servers through Veritas Netbackup/SAN.
• Verify successful completion of monthly Full backup, daily incremental backup and weekly cumulative backups, following developed procedures
• Worked with Storage Area Network (SAN) team to create LUN on EMC, Hitachi, HP, IBM Storage and Sun StorEdge.
• Worked with and Network Attached Storage (NAS) Team as well to allocate it different servers.
• Rescan the LUNS on Both RHEL and Solaris servers and expand the Filesystem by using LVM and VXVM
• A good team player with excellent customer interaction and Strong analytical, problem solving and troubleshooting skills.
• Supported 24/7 high availability production servers

Environment: RHEL 3,4,5,6, Sun Enterprise E 5000/5500/6500 server, Sunfire 280R/V 480/6800/4800/480 , GFS2,E10k/25K, TSeries, MSeries Servers, HP/DELL Blade Servers, HP PROLIANT DL servers, DELL PowerEdge servers

Confidential

Solaris/ Linux System Administrator

Responsibilities:

• Maintained UNIX (Solaris 8, 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.
• Worked extensively in using VI editor to edit necessary files writing shell script.
• Worked on adding new Users and groups and give sudo access in test and development servers and central file synchronization via sudoers, authorized keys, passwd, shadow, group.
• Coordinated with application team in installation, configuration and troubleshoot issues with Apache, Web logic on Linux servers.
• Used VERITAS Volume manager to create disk groups, volumes, volume groups, and RAID’s.
• Installed and configured Veritas Storage Foundation Suite, Volume Manager, Cluster Servers & Veritas File systems (Vxfs).
• Installation and Configuration of SSH, TELNET, FTP, DHCP, DNS.
• Local and Remote administering of servers, routers and networks using Telnet and SSH.
• Installed/Configured/Maintained/Administrated the network servers DNS, NFS and application servers Apache and Samba server.
• Worked on LAN/WAN, firewalls, and routing for Internet and Intranet connectivity using different protocols like TCP/IP, DHCP, HTTP/s, FTP, SMTP & SSH.
• Accomplished Disk Mirrors and RAID 0, 1 and 5 levels on several UNIX/LINUX servers.
• Involved in back up, firewall rules, LVM configuration, monitoring servers and on call support.
• Worked on Unix shell scripting for system/application in automating server task, installing and monitoring applications and data feeding file transfer and log files.
• Created BASH shell scripts to automate cron jobs and system maintenance. Scheduled cron jobs for job automation.
• Set up mount points on Solaris servers for Oracle database.
• Monitored client disk quotas &disk space usage.
• Performed data management using native Solaris utilities for archiving and compression.
• Worked on backup technologies like VeritasNetbackup4.x, 5.0, 6.x and Tivoli Storage Manager 5.5.
• Worked on and installed Blade Servers.
• Worked with Red Hat Package Manager RPM, YUM and YAST.
• Modified vfstab file for automatic mounting while booting, format disk and restoration of UNIX files and file systems.
• Provided Report analysis for resource utilization and 24x7 on call support.

Environment: Redhat 4/5, Solaris 8/9/10, CentOs 4/5, SUSE linux 10.1/10.3, SPARC Enterprise M3000, M5000, M8000, T5220, T5240, Sun Fire v880, v490, v440, v240, v210, Dell (T100, T105, T200, R300) Apache 2.2, JBOSS 4.2, Jumpstart, KickStart, likeVeritasNetbackup4.x, 5.0, 6.x, HP C Blade system, BL460c, BL420c, Tivoli Storage Manager 5.5, MySQL, VMware, Veritas Cluster Servers, Solaris Volume Management, Websphere 6.1.

Confidential

Member - IT Systems

Responsibilities:

• Installed and configuredRHEL, Solaris, Windows Servers.
• Installed and configured Zones and containers in Solaris 10 environment
• Installed and monitored VERITAS Volume Manager (VxVM) and Solaris Volume Manager on sun solaris environment
• Managed user account management, managing passwords setting up quotas.
• Worked on systemperformance monitoring, tuning andlog management.
• Experienced in using VERITAS Cluster Server 3.x & 4.x and Sun Cluster 2.5 & 3.1 in SAN environment.
• MaintainedPatches and Packages to keep the servers up to date with latest OS versions.
• Createdmeta db, soft partitions, and RAID levels using sun Solaris Volume Manager
• Worked on troubleshooting of Network and Firewall.
• Managed user accounts and groups with disks and Filesystems.
• Administered, monitored, and managed disk space and data security on servers.
• Documented the installation of third-party softwares.
• Administered and monitored DNS, NFS, NIS.
• Implemented and maintained server virtualization using VMware.
• Installed and configured database systems e.g. MySQL, Oracle.
• Worked on system monitoring and remote connection management using telnetandSSHconnections.
• Experienced in setting up Storage Area Network (SAN)andNAS and file systembackup and restore.
• 24x7 on-call rotation for support of production systems.