SUMMARY

• Experience in the installation, configuration, administration and maintenance of Linux/Unix servers in an enterprise environment.
• Experience in the Administration, maintenance, updating and support of Splunk Infrastructure
• Experience in various UNIX/Linux Open Source Software Support (Apache, SAMBA, Tomcat, Jenkins)
• Experience in administering VMware Infrastructure & vSphere client 3.x, 4.x, 5.x & 6.x
• Experience in configuration of NFS, DNS, FTP, HTTP, remote access management and security troubleshooting.
• Experience in configuration management tools such as Chef and Ansible
• Experience in Shell Scripting (Bash, Python and Perl)
• Knowledge of advanced firewall configurations, diagnosing complex network problems and the delivery of effective solutions.
• Experience in Cloud Migration (AWS, Azure, Oracle) .
• Experience in operations and maintenance support for AWS cloud resources which includes launching, maintaining and troubleshooting EC2 instances, S3 buckets, Virtual Private Clouds,Elastic Load Balancers (ELB) focusing on high - availability, fault tolerance, and auto-scaling.
• Experience in deploying compute and storage in Azure cloud, Creating and Managing Virtual Machines, and setting up communication Network Security Groups.
• Experience using terraform and ansible to deploy to AWS, Azure, and Oracle Cloud.
• Experience in installation, upgrading and administration of EntireX application by SoftwareAG .
• Experience in installation, upgrading and administration of Dynatrace Monitoring tool.
• Knowledge in set up, configuration and management of LibreNMS and Appinternal monitoring tools.
• Experience in F5 Load Balancers.
• Experience setting up and maintaining Disaster Recovery (DR).
• Experience in analyzing vulnerability scan report and implementing the fixes to mitigate server security flaws.
• Experience installing, configuring, and maintaining services such as Apache, MySQL, nginx, Weblogic, ESB SOA, HP Exstream, Informatica, Splunk, Jenkins, SVN, and Vormetric.
• Experience with User Management using LDAP and Active Directory.
• Experience in configuring RAC Databases to include planning, designing, developing, deploying, maintenance and supporting RAC on RHEL and Oracle Linux.
• Experience in Automatic Storage Management (ASM) to include creating ASM disk groups from SAN disks, adding/removing ASM disks to existing ASM disk group, dropping disk group.
• Experience in installation, deployment and maintenance of Splunk Enterprise. This includes deployment of forwarders, solution upgrades, and configuration updates such as data on-boarding.

PROFESSIONAL EXPERIENCE

Confidential

Linux Engineer

Responsibilities:

• Support in the administration and maintenance of AWS, Azure, and Oracle Cloud environments.
• Leverage Terraform for building, changing, and versioning infrastructure safely and efficiently in AWS, Azure, and Oracle cloud.
• Develop and maintain configuration management solutions (Chef, Ansible).
• User Management using LDAP
• Responsible for the installation, upgrading and administration of Splunk.
• Deploy new Splunk systems and Monitor Splunk internal logs from the monitoring Console (MC) to identify and troubleshoot existing or potential issues.
• Creating, maintaining, supporting, repairing, and customizing Splunk applications, search queries and dashboards.
• Responsible for the installation, upgrading and administration of Dynatrace Appmon and Oneagent for application and infrastructure monitoring.
• Responsible for troubleshooting OS, hardware, and network related issues.
• Responsible for firmware and software upgrades.
• Implementation/troubleshooting of F5 Load Balancers.
• Develop security baseline configurations for RHEL6/7 operating system platforms and scan for compliance/vulnerabilities.
• Responsible for patch management and remediating all vulnerabilities identified.
• Implement remediation steps using configuration management tools such as ansible.
• Help tune performance and ensure high availability of infrastructure.
• Responsible for designing, implementing, and monitoring the system infrastructure.
• Collaborate with other team members to develop automation strategies and deployment processes.
• Design and develop infrastructure monitoring and reporting tools.
• Develop test automation frameworks in collaboration with rest of the team.
• Create tools to help teams make the most out of the available infrastructure.
• Build and monitor services on production servers.
• Analyzes information and statistical data to prepare reports and studies for use by management.
• Successfully migrated Development environment to AWS, Azure, and Oracle cloud.

Confidential

Sr. System Administrator

Responsibilities:

• Installation, configuration, patch management, troubleshooting OS, hardware, and network related problems, firmware upgrades, software upgrades, user management, monitoring, performance tuning) to production support, performance tuning applications, solutions architecture, engineering and design of Unix infrastructure.
• VMware Infrastructure planning and design. Creating/building the CentOS and Redhat Linux VM’s from VMware ESX 3.5/4/ vSphere 4.0.
• Installing and configuring Solaris10 Control/Guest logical domains (LDOM’s) on T-series (T 2000/5220/5240 , T3, T3-2, T4-1-2’s and T5) oracle/sun hardware, server Virtualization also using Linux VM’s and Solaris Global and Local zones/Containers.
• Installing, upgrading and configuring SUN Solaris 8, 9, 10 and 11 on Sun Servers Using Live upgrade, Jumpstart and Interactive Installation.
• Maintained SVN repositories for DevOps environment: automation code and configuration
• Deployed Puppet, Puppet Dashboard, and PuppetDB for configuration management to existing infrastructure.
• Experience working with Solaris Flash used to archive data and migrate to another system.
• Automated the process of Linux Servers authentication to AD with Puppet
• Tested and assessed vulnerability of systems utilizing multiple programs, analyzing results to track and manage repairs
• Using Kick-start installation in Red Hat 5.X/6.X Linux servers (DL580, DL380 G5, 6/7/8 series).
• Supporting enterprise based distributed applications over a wide range of operating environments across several web farms on a 24/7 rotation basis for high volume, secure transactions and Web services.
• Designing/planning/Data center migration, SAN/NAS storage migration, server Migration.
• Patching the CentOS, Solaris9& 10 and Red hat 5.6/6.x Linux servers.
• Using and setting up the Oracle EXADATA database X4 machines.
• Backup utilities, installing & configuring EMC Avamar, VERITAS Net backup client 6.5.5/7.0.1 (NBU), Networker, and Enterprise media backup (TAN) also Data Domain configuration.
• Configuration of Networking Concepts DNS, NIS, NIS+, NFS and DHCP, troubleshooting network problems such as TCP/IP, providing support for users in solving their problems.
• Using Site Scope, HP Open View, Nagios and Tripwire, IP monitor, Big brother, AutoSys, Maestro and Team quest monitoring tools.
• Redesigned and redeployed the Nagios implementation. Nodes automatically added/removed themselves via Puppet.
• Implementation of patch management-initiated Vulnerability Scans
• Wrote JMX interface to generate managed beans for automatically processing account files in IBH.
• Process of requesting DCFM (Data center facilities request) for server installation (rack and IP’s cabling) request in Data centers.
• Procurement in order, getting quote and order the server hardware/parts & software’s directly with the preferable vendors.
• Installing, configuring and maintaining Weblogic 10.3.5/Apache/Tomcat, VNC, SAMBA & SMTP Send Mail, Sudo, Web Sphere Application Servers.
• File system administration using Logical Volume Manager (LVM), software RAID (0/1/5) solutions using Solaris volume manager (SVM), VERITAS Volume Manager (3.5, 4.0, 4. 1, and 5.0), VERITAS File System (4.1, 5.0).
• Deployed Puppet for configuration management to existing infrastructure.
• Working with Storage disk array/enterprise storage systems such as EMC Symmetrix, VMax Storage Arrays and Clarion Storage Arrays.
• Perform Vulnerability assessments on this project
• Ensured idempotentcy of KRFS DevOps BASH scripts
• Planning, documenting and supporting high availability, data replication, business persistence, Fail-Over, Fail-Back using VERITAS Cluster Server 3.x/4.x, Sun Cluster Server in SAN environment.
• Resolving system errors and crashes, huge file sizes, file system full errors and Installing network Printers and rectifying the Printer problems over the network.
• Analysing, designing, implementing and system integration, Knowledge on Switches, PVLAN, Routers, Firewalls ports and Partner Net port open requests.

Confidential

Sr. Unix Engineer/Administrator

Responsibilities:

• Leading a Linux, Ubuntu and Solaris Build and migration team.
• Creating and managing zpools on Solaris 10,11 LDOM and Zones. And RHEL on VMWare ESX
• Shell scripting - writing scripts in bash to automate several repeatative tasks such as finding user information from across 2400 servers for security audits on a daily basis, post server build checklists, etc
• Installing, configuring and managing Solaris 9, 10 and 11 on Sun Enterprise systems, Administered, maintained Red Hat Linux Release 4, 5 and 6, Suse Linux, 9-11 HP-UX and AIX
• Execute Unix/ vulnerability assessments and conducting enterprise risk assessment
• Providing engineering inputs on design and standards issues including analysis, development, implementation, as well as training and mentoring of technologies across the teams
• Evaluating, testing, developing and implementing complex technical solutions to address a variety of business problems; this includes hardware, software, configurations standards, and creating solutions with specific focus on driving business value
• Administering and setting up OS X for working with MAC OS X.
• Annual patching of servers on SUSE Linux, Linux and Solaris environments
• Managed Puppet infrastructure through major version upgrades. Refactored Puppet code to leverage new features.
• Knowledge of information security standards, network penetration testing, and application vulnerability assessments.
• Supported Oracle RAC environment on multimode servers, using PowerPath for disk mp I/O
• Built Linux and SUSE Linuxservers on stand-alone Dell PowerEdge and HP Blade 460R servers using DRAC and ILOMs.
• Installing various 3rd party and freeware modules and packages as required, e.g perl, gcc, python, etc
• Migration of Solaris and Linux servers using EMC RPA recoverypoint.
• Monitoring and administration of EMC Clariion storage.
• Troubleshooting functionality and performance issues using top, nmon, vmstat, sar, iostat, etc
• Worked with cross functionality technical teams (middleware, storage, network, security, etc) to complete builds of servers within given projects in a timely manner
• Working with Project manager and lead DBAs and plan migrations.
• Configuring domains on M4000 & M5000 servers.
• Working on server Hardware upgrades.
• Creating Sun virtualization zones/containers/LDOMS(logical domains )
• Documentation of new application installation and solutions.

Confidential, San Antonio, TX

Linux Systems Administrator

Responsibilities:

• Involved in installing, Configuring and administration of Redhat Linux, Suse Linux, Windows servers by using Kickstart server.
• Supported various application running on Ubuntu 12.x, Red Hat Linux4.x/5.x and VMWare ESX 4/5.
• Configuring & administration of Cassandra.
• Coordinate with third parties to perform vulnerability tests and create security authorization agreements and standards.
• Deployed Puppet for automated management of machine configurations.
• Expertise in the web server technologies such as Nginx, Gitolite, SSH, SFTP, Iptables, Fail2Ban, etc.
• Configured & Maintained Java application servers like Tomcat & messaging servers like Activemq.
• Worked on Patch and Package administration, installed various third party tools on servers.
• Worked extensively on troubleshooting including file system full, server panic, network troubleshooting and used various tools like vmstat, netstat, iostat, sar, prtdiag, ping etc.
• Involved in creating recipes for Chef to deploy configurations across 200+ Linux servers which Physical and Virtual.
• Installation, Configuration and support for Redhat Satellite Server and for upgrading and patching Linux Servers.
• Design and implement automatic deployment of OpenStack-based clouds for enterprise customers
• Develop written procedures, engineering drawings, and other technical documentation
• Coordinate and perform preventative maintenance of major systems components
• Configuration management of the Infrastructure using Chef Servers
• Rack mounted IBM HS & Dell Power Edge Blade Enclosures systems and configured Blade Consoles software to manage blades inside enclosures.
• Supported various backup teams - VERITAS Netbackup and TSM for backup administration.
• Installation of SSH and configuration of key based authentication.
• Assisting Development team to provide the information and troubleshooting.
• Administration of NFS, NIS, DNS and Send mail servers.
• Working experience with OpenStack: deployment, configuration, operations
• Provided 24X7 supports for various Production, Development and Test servers.
• Supported a Data Center consisting of more than 1000 + servers.
• Worked on creating and editing scripts (shell scripts) to automate various processes.
• Automated and executed Office 365 procedures utilizing Windows PowerShell.
• Resolved tenancy technical issues and monitored Office 365 systems.
• Administered and supported Office 365 and MS Exchange policies.
• Initiating Backups on daily basis and monitoring the scheduled backups.
• Worked on tickets to resolve day to day hardware/software/application bottlenecks.
• Constant Monitoring of System Performance using monitoring tools.
• Worked on HP Service Manager for Incident, Change Management and participated in Root Cause analysis of recurring issues, documented all the activities.
• Participated in Bridge calls, worked with various teams to solve issues related to servers & applications, worked closely with Vendors on Hardware Problems, software issues.
• Involved in Day-to-Day trouble shooting for the end users on Unix/Linux based applications.
• Configuring & deploying application using Tomcat web servers.
• Troubleshoot OpenStack deployment consistency