SUMMARY:

• 9+ years of Strong Experience in IT, over 7+ years of experience in LINUX/AIX Administration, Shell Scripting, expertise in Red - hat Linux 5, 6 and 7 Solaris 8, 9 and 10. AIX 5.1, 5.3 and 6.1, HP-UX 11.i Windows 2012, 2008, WebLogic, WebSphere JAVA, J2EE Applications and SQL.
• Around 4 years of experience as a DevOps Engineer and as a Build & Release Engineer in areas of Development, System Administration, Software Configuration Management (SCM) and Change/Incident Management.
• Experience in administration on environments Linux/Unix servers and cloud platform Amazon Web Services as well.
• Managing Large Scale Enterprise Datacenters with core Skills revolving around Linux (CentOS, RHEL, SUSE, Ubuntu) Amazon Web Services,Openstack, Windows Servers in an Agile environment and 2+ Years of engineering the automation of OS in all DevOps environments.
• Strong in troubleshooting, monitoring, training and 24/7 production support in mission critical environments Worked with systems support team to define, architect and maintain highly available production systems.
• Expertise in Installation, Configuration, Integration, Tuning, Backup, Crash recovery, Upgrades, Patching, Monitoring System Performance, System and Network Security and Troubleshooting of Linux Servers.
• Experience in Provisioning, Configuration & Maintenance Linux infrastructure through Redhat Satellite.
• Experience in configuration and automation using Puppet, Ansible.
• Expert in Installation, configuration of Patches and Packages.
• Experience in creating physical volume, logical volume, volume groups using LVM’s in Linux/AIX, HP-UX and SVM, GFS(global file system) and ZFS in Solaris.
• Proficient in Networking, configuring TCP/IP, DNS, NFS, NIS, NIS+, SAMBA, LDAP, SSH, SSL, SFTP, SMTP, SNMP.
• Experience in VMware Installed and monitored Virtual environments with ESX 5.x servers.
• Proficient in Installation, Configuration, Support & Maintenance of Red-hat/Linux 6, 7 Servers located at Remote Locations.
• Experience on AWS services like EC2, S3, RDS, ELB, EBS, VPC, Route53, Auto scaling groups, Cloud watch, Cloud Front and IAM for instantiating, configuring and managing various Amazon images for server migration from physical servers into cloud.
• Managed SAN Datastores with technologies like iSCSI, NFS & FC
• Experience in implementing and monitoring High Availability environment using Veritas Cluster Server, Sun Cluster, Redhat Cluster, HP Service Guard, HP Insight Manager, Smart Start and HACMP.
• Configured and used Kickstart, Jumpstart and Ignite to install OS.
• Efficiency in installing, configuring, and implementing of RAID 0, RAID 1 levels on hardware level, Logical Volume Manager, VERITAS Volume Manager.
• Worked on Solaris 10 Container Technology. Created and maintained local zones.
• Experience with migration of large number of user data in any LDAP servers to Active Directory
• Expert in Chef/Puppet as Configuration management tool, to automate the repetitive tasks, quickly deploy critical applications, and enthusiastically managed the changes.
• Experience writing Chef Cookbooks and recipes to automate the deployment process and to integrating Chef Cookbooks into Jenkins jobs for a continuous delivery framework.
• Experienced in working with Storage Area Network (SAN), EMC CLARiiON CX, EMC Symmetrix DMX, EMC MirrorView, HP storage and Hitachi data storage.
• Hands on Experience in configuring LDAP, SSL, SSO (CA Siteminder) and Digital Signatures.

TECHNICAL SKILLS:

Hardware: IBM/HP/DELL Blade Servers, HP-9000, rx8640, rp7420, rp8420, N-Class, L-Class, D-Class, K-Class, IBM e-Server Regatta P690, P570, RS6000, IBM/HP/DELL Blade Servers, SAN(EMC, Hitachi), NAS (Netapp), SUN Enterprise- E 5000/5500/6500 , SUNFIRE 3800/4800/6800 , E10K/15K Series Servers and Super Micros Hardware.

O / S: Red Hat Linux (RHEL 5/6/7), Windows NT /2003/2012, Solaris 10/9/8, HP-UX (11.00, 11.11, 11.23, 11.31), IBM AIX (5.1, 5.3)

Networks: DNS, NIS, NIS+, DHCP, Telnet, FTP, Rlogin

Backup Management: Veritas Netbackup 4.x/5.x/6.x, Ufsdump, ufsrestore, tar, dd, cpio

Script Languages: Shell scripts, Python

Web Technologies: Apache 2.x, Tomcat 7, WEBLOGIC 10,11, Websphere, JBoss, IPLANET 4.x/5.x.

Storage: SAN, EMC Symmetrix / Clarion, iSCSI, SNAP, NAS, DAS

ThirdParty Software: LVM, VERITAS Volume Manager, LDAP, SSH

Cluster: Veritas Cluster Server (VCS), Sun Cluster, HP Service Guard, AIX HACMP

RDBMS: Oracle (10g/11g), MYSQL, SQL Server.

Protocols: SMTP, SNMP, ICMP, TCP/IP, FTP, TELNET, UDP & RIP, DNS, WINS, DHCP NetBIOS, NetBUI.

Antivirus: Trend Deep Security, Symantec Antivirus Corporate Edition, Trend Micro Messaging Suite for Exchange, MacAfee Virus Scan Engine 7.1 / 8i, AVG (Grisoft) Terminal Services, Net Meeting, Web Ex, PC Anywhere & VNC for Windows Servers.

Cloud Computing: Amazon Web Services(AWS)

Automation: Ansible, Puppet.Chef

PROFESSIONAL EXPERIENCE:

Confidential, Dallas, TX

AWS Devops Engineer/ Linux Admin

Responsibilities:

• Worked on Design architecture, deployment, and maintenance of clients’ on-premise infrastructure comprised of several multiple nodes on AWS platform.
• Setting up AWS infrastructure by creating public, private subnets, Route Tables, NAT devices, VPC- Peering
• Creating required Security Groups, IAM Roles for specified EC-2 Instances
• Configured ELB to route traffic to instances sitting on different availability zones and added them to Auto-Scaling group to achieve high availability.
• Used VS Code to access the application code and worked on implementing the code to achieve required functionalities.
• Worked on Installing Mongo DB and Nodejs applications on an EC2 instance for development.
• Installed MongoDB Enterprise edition to use it for client data storage on a EC2 instance.
• Enabled Mongo dB Authentication and attached User Role to the required database to Securely authenticate mongo shell from command line.
• Successfully migrated the collections stored in on-premise Database to MongoDB running on EC2 in aws cloud.
• Migrated the On-premise application codes to aws cloud.
• Worked on backing up S3 bucket data to Ec2 Instance by running the backup script using cron job.
• Built Jenkins jobs to create AWS infrastructure from GitHub repos containing Terraform code.
• Configured and maintained SVN as version control tool to use it as a code repository.
• Used AWS ELASTIC Beanstalk to deploy Nodejs application code.
• Worked in creating Cloud formation templates to enable deployment of an entire stacks.
• Currently working on setting up Cloud Watch Alarms monitor the load on the instances and to trigger if the load is too high or low.
• Created customized AMIs based on already existing AWS EC2 instances by using create image functionality, hence using this snapshot for disaster recovery.
• Installation, Configuration, Maintenance and Administration of Linux 5.x, 6.x, 7.x.
• Experience in monitoring and troubleshooting (Network issues, Server performance issues, Kernel Tuning parameters and CPU/Memory/IO issues).
• Involved in building RedHat Identity Management Server (IDM) and configuring all newly built servers as appropriate clients for centralized authentication.
• Implemented host based authentication for IDM client by creating different roles and profiles on IDM server
• Worked on Provisioning, Configuration & Maintenance Linux infrastructure through Redhat Satellite.
• Worked on Ansible to automate the server build process, configuration management, writing playbooks and pushing changes on Linux servers using Ansible.
• Raid configuration on Physical hardware and software level.
• Worked on Redhat satellite 5 and 6, updating/applying patches to the servers using Redhat Satellite server.

Environment: RHEL 6 and 7, Redhat Satellite 5, 6, Veritas Volume Manager, Jboss 5,6, Tomcat, OVM Manager 3, VMware Vsphere 5, Ansible, Cloudera, Hortonworks, SCOM.

Confidential, Sacramento, Ca

Sr Linux/Unix Administrator

Responsibilities:

• Senior UNIX administrator responsible for maintaining over 2,500 Linux (Redhat, Suse, OEL) and Sun Solaris systems, and provide support for over 2000 servers globally.
• Involved in Installation, Configuration, Integration, Performance Tuning, Backup, Crash recovery, Upgrades, Patching, Monitoring System Performance, System and Network Security of the servers.
• Performed Virtual server builds on VMware and physical server builds on various HP platforms such DL380, DL580, BL460c and BL680c blades.
• Creating volume groups, logical volumes, extending logical volumes based on the requirements using Logical Volume Management (LVM), SVM, ZFS & VERITAS commands.
• Involved in Amazon Web Services (AWS) provisioning and AWS administrations like EC2, Elastic Load-balancers, Elastic Container Service (Docker Containers), S3, Cloud Front, Elastic File system, RDS, Dynamo DB, VPC, Route53, Cloud Watch, Cloud Trail, Cloud Formation, IAM, Elastic Search.
• Implemented a Continuous Delivery pipeline with Jenkins, GIT and Docker to build a new Docker container from it.
• Worked on Continuous Integration/Continuous Deployment tool like Jenkins and GIT as version control system for continuous smooth code release process.
• Installed, Managed and Configured monitoring tools such as Splunk, Nagios and Cloud Watch for monitoring the log files, Network Monitoring, log trace monitoring and the hard drives status.
• Worked on Nagios setup, configuration, check scripts, monitoring servers, troubleshooting.
• Build servers (Linux/Windows) using AWS which includes importing necessary volumes, launching the EC2 instance, creating security groups, auto-scaling, load balancers, Route 53 and SNS as per the architecture.
• Developed Chef Recipes to configure, deploy and maintain software components of the existing infrastructure.
• Worked on Designing and implementing fully automated server build management, monitoring and deployment By Using Chef.
• Developed the chef recipes, cookbooks using Ruby syntax and uploaded them to the master chef server using chef client tool like chef-repo
• Responsible for making sure that the Chef client periodically runs a node's recipes so that the node incorporates the latest configuration information from Chef server.
• Designed and implemented Chef, including the internal best practices, cookbooks, automated cookbook CI and CD system. Made use of Jenkins for Chef CI, Rake for style and linting, Thor for versioning, Berkshelf for dependency management, and Test-Kitchen for testing and development.
• Install, upgrade patches, deployment, monitor, tuning and configuration of JBoss application server.
• Configured kickstart server and updating/applying patches to the servers using Spacewalk.
• Installation, configuration and administration of Vmware, Solaris Zones, Containers and Ldoms..

Environment: RHEL servers, Solaris 10, AIX 6.1, SAN(Netapp), AWS, Cloudwatch, Splunk, Jenkins, Docker, Puppet, GIT, Jboss, Tomcat 6.0,7.0, Nagios 4, VMware Insfrastructure 3.5.

Confidential, Memphis, TN

Sr Linux/Unix Administrator

Responsibilities:

• Installation, Maintenance, Administration and troubleshooting of Redhat, Solaris, Aix and HP-UX systems.
• Involved in Installation, Configuration, Integration, Performance Tuning, Backup, Crash recovery, Upgrades, Patching, Monitoring System Performance, System and Network Security of the servers.
• Involved in Server sizing and identifying, recommending optimal server hardware based on User requirements.
• Installed and configured Logical Volume Manager - LVM and RAID
• Involved in Storage management, LVM, File system management, User account management, data backups and user's logon support.
• Built servers according to standards specified as per individual applications.
• Creating volume groups, logical volumes, extending logical volumes based on the requirements using Logical Volume Management (LVM), SVM, ZFS & VERITAS commands.
• Installation and configuration of Veritas Storage Foundation Suite::Veritas Volume Manager, Veritas File System, Veritas Cluster Server and Oracle SF RAC.
• Installation and configured Solaris 10 with Zones, Containers and Ldoms.
• Installations of Operating System using kickstart for Linux.
• Installed the Operating System on Solaris and Linux servers and Blades over the network.
• Built virtualized Linux servers on ESX and Blade servers to host multiple applications on same chassis across different server hosts
• Worked on HP Virtual Connect, creating profiles, adding, installing servers.
• Set up Linux servers for iSCSI LUN boot instead of using local hard disks
• Set up Sun servers for SAN-through-FCP boot as against booting from internal hard disks
• Configured Sun servers M4000 and M5000 for operational readiness upon OS installation
• Set up Linux servers for LAMP implementations and readiness
• Created File systems from local storage as well as NFS partitions for application portability
• Created Zetabyte file system (ZFS) in Solaris 10. Created zpools. Exported ZFS from local zones to local zones.
• Performed server builds on various HP platforms such DL380, DL580, BL460c and BL680c blades.
• Worked on Openstack (Havana), which includes installing configuring virtual machines, creating security groups, adding resources, creating tenants.
• Responsible for Installing, Configuring SunOne Directory Server 6.3 for the Enterprise
• Responsible for designing, administrating creating and documenting the new ACL policies enterprise LDAP.
• Responsible for LDAP LOAD testing on SunOne Directory with 50K users, analyzing the bottlenecks and debugging the logs and performance tuning.
• Installed, configured VMs on VMware 5, Vsphere 4.0, configured ESX hosts, adding datastores to ESX hosts, creating vswitches, templates, migrating VMs across ESX hosts.
• Configured HACMP 4.5 to monitor, detect and react to failure events, allowing the system to stay available during random, unexpected software problems and also configured to react to hundreds of system events.
• Installing, administering Redhat using Xen, KVM based hypervisors.
• Installed LPARs, VIOs on AIX p-series and x-series servers.
• Worked on puppet, creating profiles, manifests and pushing new profiles to servers.
• Installed, configured, and maintained WebLogic 10.x and Oracle 10g on Solaris & Redhat Linux.
• Troubleshooting Linux network, security related issues, capturing packets using tools such as IPtables, firewall, TCP wrappers, NMAP.
• Preparing servers for Oracle RAC installation which includes tuning the kernel, agent installation, adding NAS storage.
• Installing, configuring Nagios on Linux, Solaris clients.
• Worked on resolving production issues and documenting Root Cause Analysis and updating the tickets using BMC Remedy.
• Designing Firewall rules for new servers to enable communication with application, Oracle 10g servers.
• Coordinated with the Storage, Network and Hardware teams on server provisions (HP Proliant DL385/585 G5, G6 servers, and HP BL 465C G5 blade centers).

Environment: Red-Hat Linux Enterprise servers (HP Proliant DL 585, BL 465/485,ML Series), Solaris 8,9,10, AIX 5.3, 6.1, SAN(Netapp), BladeLogic, Veritas Cluster Server 5.0, Windows 2003 server, Shell programming, Jboss 4.2, JDK 1.5,1.6,, VMware Virtual Client 3.5.

Confidential, Dearborn, MI

Sr Linux/Unix Administrator

Responsibilities:

• Installation and administration of RHEL 5, 6 and SUSE 10.x.
• Configured kickstart server and updating/applying patches to the servers using Redhat Satellite server.
• Remote system administration using tools like SSH, Telnet, and Rlogin.
• Planning and implementing system upgrades including hardware, operating system and periodical patch upgrades.
• Installation, configuration and administration of VMware, Solaris Zones, Containers and Ldoms.
• Installation of packages, patch management, volume managment on Suse servers using YaST.
• Applied appropriate support packages/patches to maintain system integrity.
• Performed capacity analysis, monitored and controlled disk space usage on systems.
• Monitored system activities and fine tuned system parameters and configurations to optimize performance and ensure security of systems.
• Adding servers to domain and managing the groups and user in AD, installing and configuring sendmail.
• Custom build of Windows 2003 and Windows 2008 servers which includes adding users, SAN, network configuration, installing application related packages, managing services.
• Responsible for maintenance of development tools and utilities and to maintain shell, Perl automation Scripts.
• Worked on HP Smart Start, Insight Manager, SIM, Opsware.
• Expertise in VMware vSphere 3/4/5 version ESXi and vCenter operations Management.
• Worked with project manager and auditing teams to implement PCI compliance.
• Creating volumes on SAN LUNS connected to RH servers through Fiber Channel.
• Build LPAR and DLPAR system and Installed AIX 5.2, 5.3 on LPAR using NIM.
• Installed and configured Virtual I/O Server V1.3.01 with fixpack8.1.
• Integrating Weblogic 10.x and Apache 2.x and deploying EAR, WAR files in Weblogic Application servers.
• Installed, configured, cloned VMs on VMware 5, Vsphere 4.0, configured ESX hosts, adding datastores to ESX hosts, creating vswitches, templates, migrating VMs across ESX hosts.
• Designing Firewall rules for new servers to enable communication with application, Oracle 10g servers.
• Working on Volume management, Disk Management, software RAID solutions using VERITAS Volume manager & Solaris Volume Manager. File system Tuning and growing using VERITAS File System (VxFS), coordinated with SAN Team for storage allocation and Disk Dynamic Multi path.
• Fine tuning of Servers and configuring networks for optimum performance.
• Organized various meetings with teams as mentioned above for tracking their requirements as inputs to get this done and designed the plan/steps involved and took user approvals.
• Installing, configuring Nagios on Linux, Solaris clients.
• Setting up network environments using TCP/IP, NIS, NFS, DNS, SNMP agents, DHCP and Proxy.

Environment: Solaris 8,9,10, Red Hat Linux AS/EL 4.0, AIX 5.2, 5.3, Sun E10k, E25K, E4500, SunFire V440/880, DMX 3 & DMX4, Siteminder, SonicMQ 7.0, VxFS 4.1, VxVM 4.1, SVM.

Confidential

Systems Administrator

Responsibilities:

• Installation and configuring of AIX and Linux servers.
• Involved in Building and configuring Solaris 8/9/10 using Jump start server and Red Hat Linux Servers using KickStart server as required for the project. Maintained maximum uptime and maximum performance capacity for Enterprise Production, QA, and UAT/Staging.
• Incident management for Unix Servers (Solaris, Linux).
• Installed and configured Solaris 10 servers with Zones and containers with Sun ZFS.
• Primary responsibility includes building and supporting Solaris/ Redhat Linux 3,4 servers.
• Monitoring CPU, memory, iSCSI disks, disk controllers, physical disk, HW and SW RAID, multipath, file systems, network using the tools NAGIOS and BMC Tools.
• Implemented SUDO, SSH and other security tools and implemented SOX (Sarbanes Oxley) security compliance.
• Created Zetabyte file system (ZFS) in Solaris 10. Created zpools. Exported ZFS from local zones to local zones.
• Installation and configuration Veritas NetBackup on Sun Severs and performing Backup using Veritas Net Backup.
• Extensive use of Korn shell, Bash for scripting.
• Expertise in Linux backup/restore with tar including disk partitioning and formatting.
• Worked with other IT teams, customers (users), and other managers in helping build and implement systems and standards.
• Involved in migration of projects from one flavor to another one.
• Involved in development, user acceptance, and performance testing, production & disaster recovery server.

Environment: Solaris 8/9/10, Red Hat Linux 4/5, BMC Tools, NAGIOS, Veritas NetBackup, Korn Shell, Bash Scripting, Veritas Volume Manager, web servers, LDAP directory, Active Directory, BEA Web logic servers,SAN Switches, Apache, Tomcat WebSphere, Weblogic application server.

Confidential, NY,NY

Systems Engineer

Responsibilities:

• Installed RHEL 3.0/4.0 using kickstart and custom building the servers per SOW.
• Installed/configured EMC Storage with 0, 1& 5 RAID configurations.
• Installed and maintained Security issues.
• Installed Veritas Volume Manager, VCS Cluster Server for failover and for mirroring and raid level configurations on EMC storage frames.
• Performed all System Administration tasks like cron jobs, installing packages, and patches.
• Configured Mail relaying, virtual host, POP3 and IMAP4 services and enforced security policies.
• Configured and installed Automount and Jumpstart.
• Oracle Installation 8.1.5 on Solaris 2.6 & Red Hat Linux Enterprise 3.
• Diagnosing hardware/software problems and provide solutions.
• Configured and maintained Samba Server, NFS Server, NIS Server and clients, DNS clients and AutoFs File systems.
• Performing tape backups, archiving and checking data integrity through Shell Scripts and job automation.
• Testing and upgrading production, development and test Linux and Solaris servers.
• Creation & Maintenance of user accounts & passwords & profiles, home directories, initialization of files, groups’ creation and management, setting file permissions, customizing shell environment setup for users.
• Writing Shell Scripts for managing day-to-day transactions & for automation of routine tasks.

Environment: SUN Servers (6500, 4500, 420, Ultra 2 Servers), Solaris 2.6/2.7/8, Veritas NetBackup, Veritas Volume Manager, Samba, NFS, NIS, LVM, Linux, Shell Programming.