PROFESSIONAL SUMMARY:

• Around 8 years of IT experience in OEL/RedHat Linux/Solaris/IBM AIX as a DevOps, Systems and Network Administrator
• Installing, upgrading and configuring SUN Solaris 8, 9,10 and 11 on Sun Servers Using Jumpstart Servers and OpsCenter.
• Installing, upgrading and configuring RHEL/OEL using kickstart server on VMWare.
• Experienced in upgrading Solaris system kernel Firmware (Emulex, QLI) upgrades from Low to High version
• Installation and configuration of Zones under Solaris10 using Puppet.
• Experience in Installing and Configuring Centrify (Integration of Active directory) on IBM AIX servers and also responsible for Administration tasks.
• Expert in Installing, configuring and maintaining apache/tomcat, samba, and Sendmail, WebSphere Application Servers in different Environments like Solaris, Linux and AIX.
• Expert in writing scripts using various scripting languages like Shell/Bash/Perl to ease administration tasks.
• Expertise in implementation and designing of disaster backup and recovery plan.
• Working Knowledge of networking (TCP/IP, Ethernet), FTP, NFS, NIS, DNS, DHCP, SNMP and RAID levels.
• Expertise in Configuration Management tools using Puppet & Ansible.
• Experienced in Test Automation and CI - CD to build code collaboratively, submit the master branch, checking for issues.
• Experienced in installing, configuring, monitoring and setting up management of Servers using SCCM, SCOM, Zabbix, SMS and Nagios.
• Experienced in containerization using Docker and Kubernetes.
• Expertise in Patch and Package Administration, Performance Tuning on UNIX and Migration.
• Using virtualization technology with VMware (ESX/ESXi, vCenter, vCenter Converter, vSphere, vMotion), Zones, KVM & Xen.
• Strong experience on DevOps essential tools like Puppet, Ansible, Docker, Kubernetes, Subversion (SVN), GIT, Jenkins, Ant, Maven.
• Migrated VMWARE VMs to AWS and Managed Services like EC2, S3, ELB, EBS.
• Experience in Troubleshooting Hardware, Storage, Application Bottlenecks, System Recovery, Crash dump analysis and performance tuning.
• Led to design, implement and operate the Centrify migration for Unix/Linux.
• Efficiency in installing, configuring and implementing the RAID Technologies using various tools like VERITAS volume manager, Solaris volume manager & Solstice disk suite.
• Hands on Experience in managing the Linux Infrastructure Environment with Puppet Configuration Management Tool.
• Experienced in the Integration of Application/Middleware servers in the UNIX environment.
• Experienced is using Python with Django for Server Security
• Experience in using Hardware (HP/Cisco UCS) Blades, Chassis, Monolithics and Supporting Devices.
• Experience in Configuring & Administration of SAN/EMC (Symmetrix/Clariion) Disk Storages devices, DNS and NAS storages on all UNIX and Linux servers.
• Expert in writing Shell scripting using Ksh/Csh/bash/Sed/Awk to ease administration tasks and experience with programming in Perl, Python.
• Excellent skills in analyzing, designing, implementing and system integration, Knowledge on Switches, Routers, & Firewalls.
• Experienced in working with different teams such as Network Engineering, Database, storage and application teams to resolve the issues and provide Customer Satisfaction.

TECHNICAL SKILLS:

Operating System: Solaris 11/10, Red Hat Linux(RHEL)7/6.x/5.x, OEL 7.x/6.x/5.x, AIX 5.3/6.1/7.1/7.2

CI/CD Tools: GoCD, Gitlab, GitHub, Jenkins, Nexus, Maven SonarQube

Virtualization: VM Ware ESX & ESXi, vCenter, vCenter Converter, vSphere, vMotion, Hyper-V, KVM, Qemu and Xen Hypervisor

Configuration Management Tools: Puppet and Ansible

Web /Application Server/Tools: Tomcat, Apache, IBM RSA/WAS, WebLogic, Oracle MTA, SMS, Splunk, Nagios, Zabbix, SYSLOG, SCCM, SCOM, SNMP

Cluster server: Veritas Cluster, Sun cluster

Scripting Languages/ Automation: Shell, Bash, KSH, Perl, Python & Ruby

Firewall: Symantic, Cisco Checkpoint

Databases: Oracle, DB2, Cassandra

Build Tools: Maven, ANT, MS Build and Gradle

Cloud services: AWS EC2, VPC, ELB, IAM, SNS, RDS, EDS, Cloud Watch and OpenStack

SCM Tools: Clear Case, GIT and BitBucket

PROFESSIONAL EXPERIENCE:

Confidential, Waukesha, WI

Linux Administrator

Responsibilities:

• Responsible for installation and configuration of Red Hat Scientific Linux systems on bare metal servers and VMs.
• Performed OS migration from RHEL6 to RHEL7, and Successfully Upgraded the VMs from RHEL-7.4 to RHEL-7.5.
• Successfully performed USB Installation of RHEL7 on bare metal servers.
• Responsible for Building and configuring the bare bone machines to become a fully functional member of Production, Development and Test environments.
• Upgraded Linux kernel, memory and performed RHEL Kickstart installations.
• Worked on installation and configuration of SCAP and OpenSCAP profiles to support automated configuration, vulnerability and patch checking, technical control compliance activities, and security measurement.
• Responsible for creating user, assigning roles and limiting the privileges as part of Security/Authorizations.
• Built RPM with customized DISA STIG for Enterprise Linux 7 profile in OpenSCAP.
• Involved in security testing in Virtualized platforms such as Virtual Machine for an end-to-end system, from ground up.
• As part of Performance Tuning, Monitored Linux server's CPU Utilization, Memory Utilization, and Disk Utilization.
• Worked on Installing the SSL certificates for different applications on RHEL6/7 servers.
• Responsible for Patch installation, upgrades and packages installation on RHEL6 by using RPM and YUM.
• To automate and maintain build and release tasks, customized the scripts using bash and perl scripts.
• Investigated on fixing the X11/GDM not starting on system startup.
• Performed ipV6 configuration using Datatek Transformer.
• Securing the systems by installing CyberPackage McAfee Antivirus.
• Checked the functionalities of Application on High Security Mode.
• Updated the DVMR Security Configuration guide based on the dry run findings.
• Performing change management as per company standards in accordance with the hardware provider.

Confidential, Tulsa, OK

Linux/Unix Administrator

Responsibilities:

• Installation, configuration and upgrade of RHEL, OEL Linux, CentOS, Solaris on HP and Sun/Sprac (T3-x, T4-x) Servers.
• Allocated resources to the Virtual Machines based on the requirements from the Users.
• Engineered, built Servers to include the installation and maintenance of multiple OS packages such as Linux (RHEL, OEL, CentOS), Solaris.
• Built Physical and Virtual machines (VMware ESX, ESXi & Xen Hypervisors) and configure a bare bones machine to become a fully functional member of production, development and test environments.
• Performed different tasks like Server/Storage virtualization, ESX, Ldom/zone, VIO(AIX), VMAX Virtual Provisioning - as part of project infrastructure support.
• Coordinated with other teams like Network, Storage and Windows for smooth operation of the projects.
• Storage Upgrade and Migration in the Production environment via Open Migrator/replicator.
• Implemented AWS solutions using EC2, S3, RDS, EBS, and Elastic Load Balancer, Auto-scaling groups, Optimized volumes and EC2 instances.
• Built the Software bundles by combining multiple rpm packages using Puppet modules.
• Worked with Ansible and Puppet to automate the process for system-wide configuration and management of Linux servers.
• Configured servers, services, service groups, monitors, VIP (virtual IP) on CITRIX. Worked on F5 for load balancing.
• Architected the Centrify Direct Audit solution to record Unix/Linux sessions at SSH login.
• Provided Implementation testing for Centrify and BCBS for Identity and Access Management team.
• Installation & Configuration of Webservers like Apache 2.2 and Application servers like Tomcat7 on the existing Linux servers to fulfill the needs of Development teams.
• Management of OS using SCOM and SCCM.
• Built Continuous Integration environment Jenkins and Continuous delivery environment.
• Proficient with container systems like Docker and container orchestration like EC2 Container Service, Kubernetes, worked with Terraform.
• Virtualized the servers using Docker for the test environments and dev-environments needs, also configuration automation using Docker containers.
• Building/Maintaining Docker container clusters managed by Kubernetes, Linux, Bash, GIT, Docker, on AWS.
• Used CI/CD tools Jenkins, Git/Gitlab, Jira and Docker registry/daemon for configuration management and automation using Ansible.
• Have developed Simple Network Management Protocol (SNMP) agent for Communication between Client and Server.
• Extensive use of Logical Volume Manager ( LVM ), creating Volume Groups, Logical volumes and disk mirroring in HP-UX, AIX and Linux .
• Written and maintained Puppet modules and manifests for various automation and configuration management efforts.
• Worked on Git Repository, SVN (Sub Version Control), used for Code check-in/checkouts and merging of branches in various scenarios.
• Administered and Engineered Jenkins for managing weekly Build, Test and Deploy chain, SVN/GIT with DEV/Test/Prod Branching Model for weekly releases.
• Experienced in writing server side hooks for custom Git repository requirements using Bash Scripting, Perl and Python.
• Integrated the Development team activities with Application requirements by writing the scripts using Bash, Perl and Python to automate specific set of jobs/tasks
• Designed, developed, coded, tested and implemented Python 2.7/Django, Splunk Security application to track customized frag-packet activities to detect intrusions and events at defined end-points
• Install, Configure and update VMware ESXi 4.1 to VMware ESXi 5.0/5.1/5.5/6.0, vCenter 5/6 Servers.
• Extensive security testing in multiple Virtualization platforms such as VMware and OpenStack on an end-end system from ground up.
• Provide level high support for ESXi servers running on HP ProLiant BL460’s/HP DL 580’s/380’s and Windows/Linux Virtual Servers.
• Used Terraform scripts to Automate Instances for Manual Instances that were launched before.
• Performance Tuning and Management of OEL & Solaris UNIX Kernel.
• Monitoring system resources, logs, disk usage, scheduling backups and restore.

Confidential, San Antonio, Texas

Linux/Solaris Administrator

Responsibilities:

• Developer to align process and tools, such as branching source control structure dependency management Linux/Windows hybrid build infrastructure, code review & check-in policies, that are developed and instrumented by DevOps teams.
• Managed Ubuntu, Linux and Windows virtual servers on AWS EC2 using Puppet Master.
• Designed and deployed virtualization solution with Solaris 10 zones/containers in production running on Sun/Solaris hardware.
• Installation, Configuration and Administration of Storage Foundation Cluster File System and Configured 2 node cluster with Cluster File System.
• Involved and set up migration for UNIX/Linux server and SAN storage between data centers and also application migration and testing.
• Configuring and supporting virtual servers by using Xen hypervisor.
• Used Configuration Management Software’s SCCM, SMS and SCOM to manage OS Linux/Unix and Windows NT
• Installation and Configuration of Centrify (Integration of Active directory) on IBM AIX servers and also responsible for Administration tasks.
• Implemented Centrify migration for Unix/Linux environment.
• Installation, Configuration & Upgrade of Linux, Solaris operating system.
• Installation, Configuration and Administration of High Availability Virtual Cluster Servers for failover and redundancy purpose.
• Responsible for Implementing and Managing Docker and Kubernetes infrastructure, and performed operations like Docker container snapshots, attaching to a running container, removing images, managing director structures and managing containers.
• Proficient with container systems like Docker and container orchestration like EC2 Container Service, Kubernetes, worked with Terraform.
• Used Kubernetes to deploy scale, load balance, scale and manage Docker containers with multiple name spaced versions.
• Worked on deployment automation of all the Microservices to pull image from the private Docker registry and deploy to docker swarm cluster using Ansible.
• Administration of IBM AIX, Sun Solaris application and database servers.
• Involved in configuring S3 versioning and lifecycle policies to back up files in Glacier and configured S3 to host static web content.
• Have Implemented Enterprise Management Software using Simple Network Management protocol
• Installation of WebSphere, upgraded to service pack updates, installed IBM patches, configuring and creation new admin & managed servers, start & stop WebSphere server using Puppet.
• Experience with configuring Ansible on servers and using Ansible for deploying packages to multiple nodes.
• Worked on establishing connections to clients using SSH keys with master Ansible node and writing Ansible Playbooks for various deployments in production and non-production environments.
• Implemented Continuous Integration and Continuous Delivery ( CI & CD ) Process stack using GIT , Jenkins and Ansible .
• Worked on NetScaler for load balancing.
• Architecture and development of an object oriented Perl script used to retrieve and load the prescriber information files received from HCIdea.
• Deploying the OpenStack components on multimode with High availability environment, and Cluster architecture.
• Managed AWS infrastructure as code using Terraform .
• Implemented multi-tier application provisioning in OpenStack cloud, integrating it with Puppet .
• Maintained Puppet modules and manifests for various automation and configuration management efforts.
• Automation using Python Scripting with Django for Server Securities.
• Network trouble shooting using ‘ndd’, 'traceroute', 'netstat', 'ifconfig' and 'snoop' etc
• Used GoCD to configure dependencies for fast feedback and on-demand deployment.
• Administration of NFS, NIS, DNS, Samba and Sendmail servers.
• Developed build and deployment scripts using ANT and MAVEN as build tools in Jenkins to move from one environment to environments.
• Designed and developed new back-end services, maintaining and expanding our Amazon Web services infrastructure.
• Provided 24X7 support for large number Production, Development and Test systems.
• Co-ordinating with Sun Support engineers to resolve high priority issues.
• Setup, maintain and management of user accounts and groups according to the security needs and adding the packages and patches when needed.
• Initiating Backups on daily basis and monitoring the scheduled backups.

Confidential, Sunnyvale, CA

System Administrator

Responsibilities:

• Performed system administration of UNIX servers by using Operating Systems of Solaris 7/8
• Managing SUN Solaris, Compaq and Linux workstations and servers.
• Installation of patches and other software packages.
• Creating Virtual machines using Xen, KVM hypervisor on Xen servers, installing RedHat, CentOS using kickstart.
• Disk and File system management through Solstice Disk Suite on Solaris and other logical volume manager for another flavor of UNIX.
• Configuration of servers, services, service groups and monitors. Implemented F5 for load balancing.
• Automated applications and MySQL container deployment in Docker using Python and monitor them using Nagios.
• Configuration of Hardware and Software RAID on Digital & Sun Servers
• Installation of Oracle Patches and Troubleshooting, Creating and modifying application related objects, Creating Profiles, Users, Roles and maintaining system security.
• Implemented AWS solutions using EC2, S3, RDS, EBS, and Elastic Load Balancer, Auto-scaling groups, Optimized volumes and EC2 instances.
• Setting up the build and deployment automation for Terraform scripts using Jenkins.
• Information assurance for the HP-UX and Linux environment according to the latest STIG, SCAP scans performed and servers hardened
• Monitored Servers using Nagios, Zabbix and SMS.
• Disk and File system management through LVM (HP-UX, AIX, Linux)
• Configuration and maintenance of NIS, NFS, DHCP and DNS Servers on Solaris.
• Using VMware vCenter , created Datacenter Environment by creating VMware clusters, adding ESX hosts in the clusters, and implemented HA and DRS .
• Administrative tasks such as System Startup/shutdown, Backup strategy, Printing, Documentation, User Management, Security, Network management, dumb terminals and devices carried out.
• Independently designed & developed Object Oriented Perl application called TFT Submit for testing Cisco router features.
• Troubleshooting Backup and Restore problems and performed Day-to-Day trouble shooting for the end users on Solaris based applications.
• Performed OS upgrades and Patch loading as and when required.
• Backing up and restoring files across the network
• Responsible for Installation of various software components on several servers.
• Installed and Configured Sendmail Utility on Sun UNIX Servers .
• Administering NFS Mounts .
• Troubleshooting Backup and Restore problems.

Confidential

Linux Administrator

Responsibilities:

• Installation, configuration & administration of RED Hat Linux, RHEL 4.0/ RHEL 5.0
• Installed and configured of hardware and OS on servers, workstations and I/O devices on E4500 environment.
• Used VERITAS Net backup tool for Backup and recovery.
• Responsible for DNS and Configured DNS Servers and Clients and troubleshooting system and DNS issues.
• Implemented Server consolidation and virtualization using UML Linux, XEN and VMware virtual infrastructure, VMware ESX, VMware vCenter
• Allocated resources to the Virtual Machines based on the requirements from the Users.
• Package, Patches management, Migration, Integration & distribution in development, Testing, QA, Training, Production environment. (Testing: UAT, SIT, OAT, Performance testing).
• Installation, Configuration and Administration of High Availability VERITAS Cluster Servers for failover and redundancy purpose.
• Monitoring of servers using SCOM and Nagios.
• Created Korn Shell Scripts to automate cron jobs and system maintenance. Scheduled cron jobs for job automation.
• For the dynamic datacenter performance worked with different virtualization techniques on Solaris-10.
• Deploy and manage Datastore for all VMware ESXi hosts
• Monitoring a Fictitious Network Using Simple Network Management Protocol (SNMP) and Python.
• Responding to User requests via ticketing system related to system access, logon issues, home directory quota, file system repairs, directory permissions, disk failures, hardware and software related issues.
• Involved with Applications & middleware teams in writing the Program Scripting for automating the data transfer and file transfer tasks using JAVA and Python.
• Installation and configuration of AIX v5.3/6.1 on IBM pSeries Hardware.
• Perl Application and Perl Module Development in Object Oriented Perl on Solaris, RHEL Linux, Informix, Bash.
• Involved in preparation of functional and system specifications. Estimated Storage requirements for applications.
• Installed of all the required Software, patches, documentation, licensing trouble shooting.
• Setup various user profiles, environment variables/security to ensure smooth operation.
• Used Smitty (AIX) tool for Printers, Applications, Processes, Services, Software License Management, Software Installation, Users and Security Management.
• Involved in working in the AIX environment and was responsible for installing & Configuration of HACMP: High Availability Cluster Multi-Processing.

Confidential

Jr Unix System Administrator

Responsibilities:

• Installation and customization of Sun Solaris and Window 2008 servers.
• Worked on a variety of Unix Platforms ( AIX, Solaris, HP-UX, and Linux )
• Patch installation, regular maintenance.
• Supporting 150 Servers for multi locations.
• Oracle installation & system level support to clients.
• Amendment of existing scripts as well as writing new Bourne and Korn scripts related to repeated systems administration tasks.
• Managed server on VMware vSphere and Configure Linux guests in a VMware ESX environment.
• Troubleshooting and resolving of problems related to hardware, operating systems, third party applications and scripts
• Troubleshooting of Servers.
• Backup Schedules for Solaris and Windows Servers using DLT Tape drives.
• DNS, NFS, NIS administration.
• Installation, Configuration of Web Servers using Apache, IIS on Solaris and NT Servers.
• Installation and configuration of Windows NT4.0, MS Back Office Products
• Network Solutions to various clients using Windows NT.
• Configuring Windows 7, XP and NT workstations in NT domains.
• Installation of RAS on Windows NT server