PROFESSIONAL SUMMARY:

• Over 6+ years of experience in Linux/Unix administration, Administrator/Engineer incorporating administration, implementation and application - product support under environment of Red Hat Enterprise Linux 5.X/6.x/7.x, Sun Solaris (9/10/11), IBM AIX 5.1/5.3/6.1/7.2, SUSE Linux 10.
• Experience with day to day System Administration tasks like new Builds, Installs, Upgrades, Patches, Migration, Trouble shooting, Security, Backup, Disaster Recovery, Performance Monitoring and Fine-tuning on UNIX (Red Hat Linux, CentOS, OEL, SUSE, Ubuntu and SUN Solaris) Systems.
• Automated repetitive admin tasks including logging, monitoring, log rotation, and backups. Built custom RPMs , mirrored YUM and application repos.
• Experience on environment backup and recovery software like Net backup 5.0 and 6.0 on Linux Installed and applied security policies on Red Hat Linux for hardening the server based on the company's policy.
• Extensive PowerShell experience developing, implementing, and maintaining automation scripts to meet business needs in large scale, highly available, online production environments.
• Proficient with network based services including DNS, DHCP, Syslog, NTP, SSH . Utilized Netstat, Dig, Traceroute, Port Forwarding, Nmap and Rsync.
• Experience in installing, configuring, supporting and troubleshooting Unix/Linux Networking services and protocols like NIS, NIS+, LDAP, DNS, NFS, DHCP, NAS, FTP, SSH and SAMBA and also worked on monitoring tools like Cacti and Nagios.
• Worked on provisioning/installing automation for infrastructure components using different frameworks like Ultimate Deployment Appliance, Cobbler, Foreman, integrated with KVM, Vmware and Physical build and configurations.
• Tasked with creating different RAID Levels on SAN and Configuring LUNs and Configured Sendmail Utility on Linux servers.
• Created, installed, WebLogic Application servers, deployed WAR, JAR files on them installed on both Linux , Solaris servers.
• Implemented rapid-provisioning and life-cycle management for Ubuntu Linux using Amazon EC2, and custom Bash scripts.
• Proficient in System Backup and Recovery from tapes using ufsdump, ufsrestore, tar and cpio and well versed in configuring Volume Groups and Logical Volumes, extended logical volumes for the system growth needs using Logical Volume Manager (LVM).
• Extensive knowledge administrating, configuring, and troubleshooting user's authentication issues with Active Directory (AD) and Lightweight Directory Access Protocol (LDAP).
• Installed/Configured Tomcat, Web sphere 5.x/6.x and other Application Servers and Administration of Web Sphere Application Server 6.X with Network Deployment and Extension Deployment.
• Conduct incident management trend analysis within the supported production environment
• Configured File Systems, users and group for Oracle and Web sphere
• Handling and generating tickets via the Service Now.
• Knowledge of Routers, Switches, Hubs, Firewalls, LAN, WAN Intranet, Internet and Load balancers.
• Developed elegant solutions for managing development on two platforms concurrently
• Maintained high availability of data using Oracle Real Application cluster Server
• Hardware configuration, installation and management on Cisco UCS, HP servers and Workstations.
• Authored automation scripts using scripting languages like Python, Shell, Ruby languages like Yaml and Json.
• Manage AWS EC2 instances utilizing Auto Scaling, Elastic Load Balancing and Glacier for our QA and UAT environments as well as infrastructure servers.
• Experienced in designing web pages and Graphical user interfaces, front end layouts on the web by using HTML, DHTML, CSS, Bootstrap.
• Experienced in IaaS , PaaS culture and worked on AWS platforms.
• Expertise in setup and configuration of Application Servers WebSphere, Tomcat, WebLogic and involved in deployment activities.
• Configuring AppDynamic and created dashboards to monitor and gather required metrics.
• Expertise in troubleshooting and monitoring applications using AppDynamic.
• Installed, configured and administered and integrated Apache Web server to work with WebLogic/ JBOSS
• Cisco USC blade installations, Maintenance, and Troubleshooting.

TECHNICAL SKILLS:

Linux: (Redhat-5/6/7), Ubuntu 12.04/14.04/16.04, CentOS-6/7.

Unix Sun Solaris10/11, HP: UX, IBM-AIX.

Windows: 2008,2012.

VMware: Esxi 4.0, 5.5

Automation/Configuration Management: Ansible, IAAC tools like Cloudformation, AWS OpsWorks

WebServers: Apache, IIS, Nginx

Application Servers: Tomcat, Websphere, WildFly(Jboss),Haproxy, Varnish, Squid Proxy and more.

Protocols: REST API, SOAP, TCP/IP, NFS, DNS, DHCP, WAN, SMTP, LAN, FTP/TFTP

Storage and Backup Tools: NetApp, Symantec NetBackup, EMC Networker, AWS EBS, Glacier.

Volume Manager: VERITAS Volume Manager, Solaris Volume Manager, LVM with Linux, AIX-LVM.

Programming Languages: Shell/Bash, Python, Ruby.

Databases: Mysql, PostgreSQL, Oracle, DB2, MongoDB.

Ticketing Tools: JIRA, Confluence, Remedy, Junit, ServiceNow, HPSM.

Monitoring Tools: ELK, Cloudwatch.

Hardware: Cisco UCS, HP/IBM/Blade Servers, SUN Enterprise

PROFESSIONAL EXPERIENCE:

Confidential, Wayne, PA

Linux Deployment Engineer

Responsibilities:

• Hands on experience on Linux System Administration (RedHat, CentOS etc.)
• Experience in Linux OS installation, Software and Patch management,Volume Manager Administration Network OS / SW installation,OS patching skills on Linux
• My responsibilities include all duties related to patch and configuration management of the Linux environment, Windows environment, researching problems and recommending solutions to improve security and lower risk using SCCM, batch and Powershell scripting.
• Experienced with advanced skills in Server and System Engineering
• Experienced with well versed tools such as Altiris, WSUS, SCOM, and SCCM
• Experienced with well versed in OS types as Windows Servers 2003, 2008, 2012 and 2016 technologies and versions associated with IE in a support application environment
• Also versed with desktop OS types such as Windows XP, 7, and 10.
• Support experience and working knowledge on VMware Technologies vCenter, ESXi etc work in close coordination of the vulnerability scanning tea
• Participate in the change management process for Patch Schedules
• Willingness to work in shifts according to patch deployment cycles
• Coordinate with various groups - deployment engineers, sys admins, app and business owners on visibility of patching requirements and schedules, downtime and testing and validation
• Coordinate with business units impacted by the patch in accordance with their requirements;
• Publish a Report summarizing the test results, the anticipated impact of implementing each Patch, and a recommendation of implementation.
• Familiar with the configuration and maintenance of server and peripherals
• Interface with different workgroups including Tier2, Technical support groups, and development, System Administrators to troubleshoot and resolve application issues.
• Hands-on experience of system management, system setup and managing Linux and VMware (ESXi and vCenter) based servers as well as configuring them in Production servers.
• Experience with F5 Load balancing devices like Global Traffic Manager and Local Traffic Manager.
• Scanning Vulnerable hosts on the subnets and fixing vulnerabilities resulting in improved and secure networks using McAfee Found Stone.
• Experience with a configuration/deployment management tool (e.g. Ansible, Chef, Puppet, Salt)
• Experience using Ansible for configuration management
• Experience developing Ansible components and creating and maintaining Ansible playbooks
• Experience with application deployment to a Cloud Infrastructure
• Familiarity with JAVA development, compilation, debug, etc that requires to troubleshoot build and deployment issues.
• Performing the impact analysis and prepare the deployment plans based on close working with development counterparts
• Handling Application configuration changes and Deployments
• Actively participate in Incident or Problem Management calls/tasks if there are any issues related to deployment.
• Experience on integration with Active Directory authentication on Unix/Linux using LDAP/LDAPS
• Extensive knowledge administrating, configuring, and troubleshooting user's authentication issues with Active Directory (AD) and Lightweight Directory Access Protocol (LDAP).

Confidential, Forth Worth, TX

Linux/UnixSystem Admin

Responsibilities:

• Well experienced in Unix and Linux Administration, Build and Release management involving extensive work towards packaging, building, debugging and Unix and Linux Administration. Installation, configuration and management of RHEL 6, 7.
• Responsible for Unix/Linux system administration tasks of Red HAT 7.
• Extensively worked on administering NIS, NFS, DNS, DHCP, LDAP, Mail servers & Samba server
• Experience in building Red Hat Network Satellite Server for automated installation of Linux boxes and creating image of Linux system with system Imager that automates Linux install.
• Extensive experience in installing, configuring and maintaining Application Servers - Web Servers Experience in VMware.
• Performing software installation, upgrades/patches/packages, troubleshooting, and maintenance on Linux Servers .
• Installation, configuration and management of LAMP (Linux/Apache/MySQL/PHP) stacks.
• Configured and successfully Deployed EC2 instances with private and public subnet for Applications with Linux OS in AWS Environment.
• Set up user account in Linux operating system.
• Configure S3 Storages for backups of server and hosting website.
• Setup and Control Identity Access Management (IAM ) for Linux Environment in AWS.
• Build and configured Custom VPC for private and public subnets with NAT Gateway and NAT Instance for Internet accessibility of hosts.
• Write the scripts for adding users and for pushing changes into files of multiple groups of hosts with shell scripting .
• Built both physical and virtual Linux servers in all environments, system test, staging and production.
• Hardened of servers to prevent attacks, hacking and generating SSH authenticating keys to secure the environment.
• Installing and configuring of LAMP servers.
• Ability to manage VMs in RHEL environment.
• Troubleshooted user logins by using various remote login utilities.
• Created various partitions including swap, LVM and also administering RAID on specified servers to maximize productivity.
• Experienced with Apache web server configuration, load balancing, and clustered applications with shared NFS data.
• Provide recommendations for Ansible configuration and deployment.
• Managing Ansible Command Line Interface and Ansible Tower .
• Developing Ansible scripts , Python scripts, BASH scripts .
• Responsible for automated deployment of the application in Tomcat Server using Ansible playbooks .
• Configured the Ansible playbooks with Ansible Tower so that other users can run them with just a push of a button.
• Installing and configuring apache servers.
• Installing of ESXi Hypervisor Servers, vSphere clients and vCenter Servers
• Creating the datastores for storing VMs and data.
• Deploying virtual guest machines and use clones, snapshots, and templates.
• Health checks for VMs and ESXi hosts.
• Installing/upgrading packages and patching systems to maintain the productive environment,
• Installed and configured tomcat and Nginx .
• Monitor the availability and health of the infrastructure and applications across multiple data centers. (Systems resources: disk space, memory, CPU load)
• Compiling new kernels, creating and modifying scripts (mainly bash) to accommodate the administration of daily duties.
• Creating/modifying host-based firewall rules using IPTABLES .
• Building and maintaining Domain Servers - Exchange, SMS, Active Directory , VMware, and printer servers.
• Issues related to login, performance, virus removal, adding machines to domains, granting proper permissions and applying domain group policies domain wide.
• Backup and restoration of Progress Database servers using SQL scripts.
• Patching and update the infrastructure and Patching and update the infrastructure systems using RedHat-Satellite.
• Networking experience DNS, SMTP, FTP, SCP, SSH .
• Performed Branching, Tagging, Release Activities on Version Control Tools: GIT, GITHUB and GITLAB.

Environment: RHEL (5/6/7), Windows 2008/2012/2016 servers, VMware ESXi , Ansible, Ansible Tower, Solarwinds, SQL, LAMP, NetBackup, Apache, Python, Shell scripts, LDAP, Splunk.

Confidential, Texas

Linux/System Administrator

Responsibilities:

• Performed automated installation of RedHat/CentOS/Ubuntu Operating systems using Kick-Start
• System Administration with RedHat Linux 5/6/7, CentOS, Ubuntu etc.
• Installation and maintenance of Windows 2008/2012 servers, SQL servers, Print/File services and VMware ESXi Systems across 3 different locations in a Windows environment.
• Accurately configure and support Windows servers, including Hyper-V, Active Directory, DNS, DHCP, Group policy and other roles.
• Build RHEL Linux servers in Appdev, test, stage and in production environments which includes WebSphere Application servers, Apache/IIS webserver.
• Involved in Installing and configuring Centos & SUSE servers on HP x86 servers.
• Release / Change Management interface through the staging phase, during and after full implementation of system software up-gradation including database and website applications.
• Administration of enterprise virtualization tools including VMware vSphere, and configuring of Virtual Machine using Oracle VM Manager.
• Solid understanding of Identity Access Management architecture and exposure to entire features of CA Site-Minder (Policy Servers & Web Agents), Ping-Federate 7.1.2 and later versions, Oracle Access Manager, ADFS.
• Working on the IAM service to enable client applications to manage identities such as users and roles.
• Involved in end-to-end implementation of IAM solution using Oracle's suite of IAM
• Involved in writing SQL queries to implement the schema related changes for internationalization and debugged the build errors using SQL queries to make sure Database is not corrupted.
• Worked with RedHat Linux tools like RPM and YUM to install packages and patches for RedHat Linux Servers.
• Creating and maintaining users, profiles, security, rights, disk space and process monitoring.
• Administration/Configuration of Print Servers / Clients in the Network, planning, configuration and maintenance of connectivity for servers as well TCP / IP configuration.
• Performed server backups and data restores .
• Utilized Linux Terminal Server for removing fat client management, save on administration and provide users with a more reliable & secure environment.
• Created multiple subnets within the private network and allowed network flow between them.
• Created different file systems such as xfs, ext3, ext4 and ( NFS ) network file systems and configured ( ACL ) access control lists, encryption and permissions.
• Managed local and centralized authentication ( LDAP ) for users and groups.
• Responsible for firewall management and SElinux configuration.
• Continually updated personal knowledge of computing hardware operating systems and software.
• Expertise in installing and supporting IBM HTTP Server/ Apache/IIS on Windows, UNIX,AWS.
• Follow policies and standard operating procedures (SOP) for Change and Incident Management.
• Setup of NFS and Samba file sharing services on Linux and Windows client servers
• Configuring Volume groups, logical volumes, and file systems on RedHat Linux.
• Maintenance of servers, printers, copiers, and fax machines.
• Oversees Incidents and Service Request end-to-end for all allocated users.
• Documented help desk tickets/resolutions and maintained equipment inventory lists.
• Routing in LAN/WAN , Ethernet Port, Patch Panel virtual networking, wire and wireless networks and configuration switches and routers of networks, TCP/IP, VPN, VLANs.
• Transfer file across the system on the network using FTP, SCP, WinSCP and Rsync commands
• Create JIRA support request project for daily support ticket from users across different team in the organization
• Implement FTP, VSFTP and NFS for administrative and project requirement
• Provide 24/7 technical support to production and development environment
• Expertise with configuration management tools like Chef/Puppet to develop automation for Configuration Management, Security Hardening techniques, Monitoring Plugins, SSL Renewals and Application Configurations .
• Building up and maintenance of Hardware and Network connections from scratch.
• Upgrading and configuring system software that supports infrastructure applications.
• Quickly build NGINX stable/mainline by running single command.
• Managed Red Hat Linux user accounts, groups, directories and file permissions .
• Performed Hardware Installation, configuration and maintenance of Dell and HP servers.
• Installation of packages, patch management , volume management on Red hat Linux Servers.
• Build LPAR and DLPAR system and Installed AIX 5.2, 5.3 on LPAR using NIM.

Environment: RHEL 6/7, Windows 2008/2012 servers, SQL, Ansible , Ansible Tower, VMware ESXi, Splunk, JIRA, GIT, Active Directory, WebSphere, Apache, Jboss, F5, Python, Shell Scripting.

Confidential

System Administrator

Responsibilities:

• Installed and administration of windows and Linux (Centos, Ubuntu, and Red hat) servers.
• Troubleshooting booting related issues, creating boot records, working with system maintenance mode, recovering root password, fixing booting related issues, working with boot list.
• Created Bash, shell scripts for various Systems Administration tasks to automate repeated processes.
• Involved in Installing and configuring Centos & SUSE servers on HP x86 servers.
• Administration and support of Unix Servers including SUSE, Solaris, HP-UX & Red Hat Linux, and CentOS.
• Release / Change Management interface through the staging phase, during and after full implementation of system software up-gradation including database and website applications.
• Creating and maintaining users, profiles, security, rights, disk space and process monitoring.
• User account management, worked with shell scripting (ksh, bash) to automate administration tasks.
• Creating, maintaining, and removing users and groups. Security settings on user accounts and groups. Working on System Management Services SMS and changing boot list order etc.,
• Installation, Configuration, Maintenance of DNS/DHCP/NFS/SMB/LDAP Servers, Design and Configuration of Active Directory, Domain Controllers (Primary and Backup), Organizational Units, Sites and Domains, Group Policies, Users and Groups, Permissions, Profiles and Logon Scripts, Home Directories, Implement Backup & Restore Policies, Print Servers.
• Setup cronjobs schedules for various backup and monitoring tasks & supported with enterprise backups using Veritas NetBackup.
• RPM package installation & upgrade released by RedHat from repository.
• Support for application upgrade & rollback, services start/stop on Linux Servers.
• Handled hardware issues like Memory, hard disk, Motherboard, and Processor etc.
• Performed processes administration and management like monitoring, start/stop various processes/sub processes.
• Solving server problem with rescue mode recover file system corrupt form console.

Environment: RHEL 5.x, CentOS 5, Windows 2008, 2012, Apache 1.2/1.3, Logical Volume Manager, FTP, SFTP, SSH, RPM, LAN, VMware