PROFESSIONAL SUMMARY:

• Unix/Linux System Administrator with 8+ years of experience in administration tasks working on different distributions of Linux such as Red Hat, CentOS, SuSE EL, Ubuntu, AIX, HP - UX with supporting Development environments.
• Extensive expertise in Installation, Configuration, Upgrading, Controlling and Monitoring of Sun Solaris (8/9/ 10/11), Red Hat Enterprise Linux - RHEL (4.x, 5.x, 6.x and 7.x), CentOS (5/6/7), VMware ESX/ESXi 4.x/5.x/6.x and Windows 2003, 2007, 2008 R2, 2012 R2, 2016 server models.
• Expertise in implementing and managing virtual servers using virtualization technologies such as VMware ESXi, vCenter, vSphere and associated VMware products. Creation of VMs, cloning and migrations of the VM's on VMware vSphere.
• Experience on AWS (EC2, ELB, S3, EBS, VPC, Auto Scaling, Route 53 and Redshift) and Azure Cloud technologies. Experience in managing infrastructure resources in Cloud architecture and Cloud automation using AWS Cloud formation templates.
• Experience in installing, tuning and troubleshooting Apache, JBOSS, Tomcat and Web Sphere application servers.
• Performed migration of Virtual Machines and VM files using VMotion and Storage VMotion.
• Skilled Confidential Software Development Life Cycles and Agile Programming Methodologies.
• Expertise in networking tasks (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 on Brocade Switches and VitalQIP.
• Experience on provisioning and allocating storage to Linux, Windows instances and performing security related configurations in these instances.
• Experience in installing, configuring, administrating, troubleshooting, tuning, security, backup/recovery and upgrading Linux (Red Hat &SuSE) in large environments.
• Experience in CISCO UCS, UCSD and Cloud Center automation.
• Experience in Pure and Hitachi Storage environments.
• Experience in Data Domain appliance and Veeam backup.
• Experience on ExtraHop wire data analytics monitoring tool to monitor real-time IT, security, and business insights by analyzing the communications traversing the network.
• Expertise on creation of volume groups, logical volumes, extending logical volumes based on the requirements using Logical Volume Management (LVM), SVM, ZFS & VERITAS commands
• Experience on Splunk and ELK.
• Experience in Active Directory, IIS, FTP, DNS/DHCP/LDAP/NFS/NIS/NIS+ services.
• Experience in Performance Monitoring of CPU, Memory, Disks and Network.
• Experience in the configuration of the mail servers like Sendmail 8.13, 8.14.x and Postfix 1.x, 2.x.
• Experience installing and updating packages from the network, Remote Repository or Local File system.
• Experience in Bash(shell)/Perl/Python/ Scripting for day to day administration. Experience with coding and scripting in Java/J2EE, PHP, Python.
• Experience on performing Data center Operations including hardware, software setup monitoring and troubleshooting.
• Good exposure to Storage Solutions like SAN, NAS.
• Experience on NetApp SAS, SATA, EMC VNX, Hitachi and Pure Storage.
• Windows Active Directory configuration and Management.
• Experience on Nagios configuration, Monitoring and services configuration.
• Experience in Veritas NetBackup Management, scheduling the backup policies and loading the tapes for backup and unloading the tapes.
• Experience working on Continuous Integration and Delivery platform as DevOps Engineer. Expertise on management methodologies and production deployment which includes Compiling, Packaging, Deploying and Application Configurations.
• Experience on Puppet/Chef/Ansible configuration and programming.
• Experience on Jenkins/JIRA/Docker/Rundeck/Maven/Git/GitHub/SonarQube and other DevOps tools configuration and working on issues if any in the configuration.
• Software package deployment, disaster recovery/contingency of business management.
• Expertise in implementation and designing of disaster backup and recovery plan.
• Experience with documenting software usage procedures, network diagrams and project documentation.

TECHNICAL EXPERTISE:

Operating Systems: RHEL 5.x/6.x/7.x, CentOS, Ubuntu, IBM AIX, Windows XP/Windows 7/Windows2003server.

Scripting Languages: Shell, Python and Powershell

Protocols: TCP/IP, NIS, NFS, DNS, DHCP, Cisco Routers/Switches, WAN, SMTP, LAN, FTP

Web Servers: WebSphere, Wildfly(JBoss), Apache Tomcat Server

Databases: MS SQL Server, MySQL, Oracle

Third-Party Software: VERITAS Volume Manager, LVM, LDAP, SSH

Configuration Management: Puppet, Chef, Jenkins

Internet and WWW: Apache Web Server, Sendmail, Postfix

Naming Services: DNS, DHCP, NFS, Automounter, NIS and NIS+

WORK EXPERIENCE:

WORK EXPERIENCE:

Confidential

Linux System Engineer, New York, New York

Responsibilities:

• Installing Red Hat Linux using Kickstart/PXE booting and applying security polices for hardening the server based on the company policies.
• Installation, configuration and testing of Double-Take Share for Data Transfer for Solaris and AIX Servers.
• Experience in installing, tuning and troubleshooting Apache, Tomcat and Web Sphere application servers.
• Used Logical Volume Manager for the management of Volumes including creation of physical and logical volumes on Linux.
• Taking the incremental and full backups using Veeam backup tool in Data domain appliance.
• Strong experience in pure storage in creating the volumes and presenting it to the Vcenter for creating the data stores.
• Strong experience on configuring the scripts for services using shell/python in Nagios.
• Experience in supporting Windows Cluster server running 2-4 nodes on Windows 2003/2008 & 2012 supporting applications like web servers, SharePoint and Active Directory environment.
• Strong Experience on Migrating from Windows 20 R2 environments.
• Involved in migration of project from one flavour to another one.
• Generated python scripts to manage the Automatic backup of the EC2 - ELB volumes and cron the job to create the snapshots of the volumes with the AWS API for EC2 Instances storage.
• Implementation of Windows 2008/2012 domain architecture.
• Provisioning the Windows and Linux servers in AZURE cloud and implementing the service fabrics, creating the Resource group and assigning the permission to resource group.
• Installation and configured SLES 9, 10 &11, Red hat 4.x,5,6 & 7 on Dell Power Edge Blade servers using Kickstart with PXE for LAMP (Linux, Apache, MySQL and Perl/PHP) installations.
• Worked on User administration setup, maintaining account, Monitor system performance.
• Activities includes user administration; start up and shutdown scripts; crontabs, file system maintenance, backup scripting and automation using Perl, shell scripting (bash, ksh) for Red Hat Linux and AIX systems.
• Performed application installation and management on IBM AIX and Linux servers for applications like Web.
• Written python scripts for Nagios monitoring services as per the application requirements.
• Responsible for continuous integration (CI) and continuous delivery (CD) process implementation-using Jenkins along with python and shell scripts to automate routine jobs.
• Used Python AWS SDK for dynamic creation of EC2 instances.
• Adding patches to keep the servers updated against bugs present in the operating system as well as other applications like VERITAS Storage Foundation, Web Sphere and Oracle.
• Identifying the Critical applications for System resource utilization (CPU, Memory, Threads etc.) & JVM heap size was monitored using AppDynamics.
• Used to tune the performance of WebSphere application server (configure caching, Queuing, pooling, tuned JVM heap size).
• Worked on Splunk configuration and log/event management.
• Setting up the configuration to the newly built servers in Nagios and setting up the new services based on application team requirement using bash script.
• Setting up the backup policy for the servers from Veritas NetBackup and from storage level with Netapp snapshots.
• Worked extensively with Active Directory Services, Web Services (IIS Servers), DNS, DHCP, SQL Database Servers and Business Application Servers.
• Creating the LUN from the Netapp storage and assigning the LUN to VMware ESX servers to create datastore.
• Increasing the LUN size from storage and increasing the same from the datastore level.
• Configuring the snapshots for the LUNS in Netapp NAS storage and extending the volume size when the volume reaches to its threshold limit.
• Provisioning the Linux/Windows instances in the AWS cloud platform and taking the AMI's / snapshots for those instances.
• Configuring the security of the servers in AWS Cloud.
• Install and configure SSH to enable secure access to the servers.
• Monitoring using ExtraHop Installed on on-primes data center which monitors the network data flowing across the switches for ensuring security.
• Remote Desktop Monitoring using Microsoft Terminal Services/Client.
• Co-ordinating with vendors for any hardware relevant issues and resolving it with combined efforts.

Environment: Red hat EL 5.x, 6.x & 7.x, Windows Server 2008/2012/2016 , CISCO UCS /HP / DELL Standalone Servers, Python, CISCO UCS 5100 Blade Servers and AWS Cloud Environment.

Confidential

Linux System Engineer, Philadelphia, PA

Responsibilities:

• Responsible for Installations, Configuration, Deployment, Administration, Maintenance and Troubleshooting Server.
• Created User, Groups and File Systems as per database requirements.
• Configured and troubleshooting NFS, NIS, NIS+, DNS, DHCP, FTP, LDAP, and Samba, Apache servers in Linux Servers.
• Performed Memory and Swap management to improve optimization and performance of the servers.
• Experience in installing, configuring the Volume/File system management using Veritas Volume Manager, Logical Volume Manager (LVM), Solaris Volume Manager (SVM), ZFS Filesystem Management and VERITAS File System.
• Experienced in User and Group administration and security issues.
• Execute Shell script in bash to create multiple users.
• Written python scripts and modules for patching and regular software installations in the environment.
• Performed upgrades of Packages and Patches in Solaris and Linux.
• Setup NFS file systems and shared them to clients.
• Troubleshooting and configuring NAS and NFS mount points.
• Troubleshooting network, application, and server related issues.
• Scheduling of automatic repetitive Jobs, and Shell Scripts with Crontab.
• Monitoring Virtual memory, Swap management, and Disk and CPU utilization by using various monitoring tools.
• Creating volumes, LUNs and implementing different RAID levels on the same.
• Upgrade and Maintain VMware ESX / ESXi | and virtual sessions.
• Installation, configuration and management of Oracle11g 12c & MySQL database servers.
• Regular disk management like adding and replacing hard drives in existing servers and workstations. Creating partitions according to requirements, creating new file system or growing existing one over the hard drives and managing the file system.
• Patched different software using RedHat Package Manager and YUM.
• Upgraded Linux Kernel using YUM.
• Performed all LVM and file system tasks like creation of Logical volume and file system, mount a file system, modifying size of a Logical Volume and file system, Removing a file system.
• Install, configure and renewal SSL certification for site.
• Monitor performance and work with Team members and clients on resolving complex troubleshooting issues.
• Carried out automated deployment and scaling processes based on Puppet and Chef for a wide range of server types and application tiers, including Elastic Search.
• Responsible for large-scale Puppet implementation and maintenance. Puppet manifests creation, testing and implementation.
• Setup and Configuration of Puppet Configuration Management with specific client requirement such as Create user/remove user, Install /Remove packages and package updates, Configure multi nodes.
• Carried out deployments and builds on various environments using Puppet continuous integration tool.
• Created puppet manifests and modules to automate system operations. Created monitors, alarms and notifications for EC2 hosts using CloudWatch.
• Interacts directly with executive level management for internal tasks and projects
• Design and implement systems, network configurations, and network architecture, including hardware and software technology, site locations, and integration of technologies

Environment: Red Hat Enterprise Linux 6/7, Logical Volume Manager, Veritas Volume Manager, apache and oracle database, Puppet/Chef, Jenkins

Confidential

Linux Administrator, San Diego, Califonia

Responsibilities:

• Assisted in planning and implementation of virtual environment.
• Creating a procedure for the P2V migration.
• Analyzing the servers to be virtualized or migrated.
• Managed a decent cloud storage environment with Vrealize cloud environment, performed backups and Audit reports based on user log information from Vrealize.
• Used VMware vCenter, created DataCenter Environment by creating VMware clusters, adding ESX hosts in the clusters, and implemented HA and DRS.
• Performed physical to virtual (P2V) migrations for approximately 500 physical servers utilizing VMware Converter.
• Daily provisioning and optimization of storage environment with NetApp FAS3050, FAS3160, FAS270 .
• Administrating multiple labs in VMwareLab Manager.
• Worked on deploying Linux SuSE 10, 11 and 12 versions.
• Upgraded from Linux SuSE version 10 to 11 and from 11 to 12.
• Deployed RDSH in windows 2008 and windows 2012 server versions.
• Worked over RDSH in updating operating systems from windows .
• Installed and upgraded Horizon Client suite environment to VMware horizon 6 version.
• Involved in installing/configuring and troubleshooting VMware Lab Manager and administrating multiple labs in Lab Manager and dealing with Lab Manager Issues.
• Troubleshooting and testing of VDI instances.
• Involved in built and deploy the windows XP and windows 7 golden image for the VDI environment.
• Performed Audit report generation using Power Shell scripting.
• Used HP C7000 blade enclosures with installing multiple layers of HP blade servers.
• Upgraded from HP C7000 server to HP C7000 platinum server, which improve transmission speeds Confidential exponentially high level.
• SCCM Configuring and installing enterprise edition and SCCM backup, maintaining redundancy.
• Upgrading system severs on SCCM from, SCCM R2 to SCCM R2 SP1 Confidential client level server.
• Managed EPIC infrastructure, regarding Health care management.
• Designed work flow and data base architecture using EPIC
• Reduced CPU load on NetApp filers from 90% to 55% by optimizing volume configuration.
• Planned and performed a head swap from a NetApp FAS3050 to a NetApp FAS3160.
• Installing, configuring and troubleshooting VMware View.
• Performed tons of V2V Migration.
• Experienced in maintenance of source code repositories management systems, such as GIT, SVN, Bitbucket, and IBM ClearCase applications
• Performed operation on Team city on tool building Confidential the application level.
• Worked on SCSI internet protocol commands and perform data transfer via serial communication, worked on SCSI versions such SCSI-FCP and SCSI-UAS.
• Discussing with the user and team and scheduling migration and monitoring migration.
• Creating a workflow for Pre/Post Migration.
• Perform operational turnover on all system implementations.
• Migrating machines either P2V or from Microsoft Hyper V environment to VMware environment
• Worked with Servers like Windows 2000, 2003, 2003R2, 2008, 2008R2.
• Troubleshoot outlook problems and managed users archives in network.

Environment: VMware ESX 4.0/3.5, VSphere 4.0, Windows Server 2008/2003, Windows xp/vista, Active Directory 2003, SQL Server 2008/2005, HP Proliant Servers, HA/DRS, SCCM, Linux SuSE

Confidential

Linux Administrator

Responsibilities:

• Responsible for Installations, Configuration, Deployment, Administration, Maintenance and Troubleshooting Server.
• Created User, Groups and File Systems as per database requirements.
• Configured and troubleshooting NFS, NIS, NIS+, DNS, DHCP, FTP, LDAP, and Samba, Apache servers in Linux Servers.
• Performed Memory and Swap management to improve optimization and performance of the servers.
• Experience in installing, configuring the Volume/File system management using Veritas Volume Manager, Logical Volume Manager (LVM), Solaris Volume Manager (SVM), ZFS Filesystem Management and VERITAS File System.
• Experience in User, Group administration and security issues.
• Execute Shell script in bash to create multiple users.
• Written python scripts and modules for patching and regular software installations in the environment.
• Performed upgrades of Packages and Patches in Solaris and Linux.
• Installation, configuration and management of Oracle11g 12c & MySQL database servers.
• Regular disk management like adding and replacing hard drives in existing servers and workstations. Creating partitions according to requirements, creating new file system or growing existing one over the hard drives and managing the file system.
• Patched different software using RedHat Package Manager and YUM.
• Upgraded Linux Kernel using YUM.
• Performed all LVM and file system tasks like creation of Logical volume and file system, Mount a file system, Modifying size of a Logical Volume and file system, Removing a file system.
• Install, configure and renewal SSL certification for site.
• Monitor performance and work with Team members and clients on resolving complex troubleshooting issues.

Environment: Red Hat Enterprise Linux 6/7, Logical Volume Manager, Veritas Volume Manager, apache and oracle database.