SUMMARY:

• 7 years of extensive experience in Unix System Administration in Red Hat Linux 4/5/6/7 .
• In a UNIX server environment, performs installation, customization and maintenance of the operating system and system software products in support of business processing requirements.
• Managing Sever Farm consisting of 800+ Rack optimized Linux Clusters.
• Extensive experience with Built Nodes using automated scripts (Kickstart scripts)
• Experience with configuration management tools Puppet, Ansible.
• Experience with python Fabricfor local pathching work.
• Worked with NGINXfor load balancing and reverse proxy.andmaking configuration changes using above automation tools.
• Working Knowledge of ElasticsearchLogstashKibanaclusters for extensive error log monitoring and data auditing.
• Strong familiarity with Bash Shell and Python scripting.
• Maintain status of assigned issues in UnboundID’s issue tracker.
• Experience insetting up docker service and build docker containers.
• Worked on SAN technology including zoning, disk creation on various systems, maintaining and configuring various fiber switches and storages. Worked with NetApp storage.
• Improved system availability by installing Nagios Monitoring tool.
• Installed & configured Veritas storage foundation such as VCS, VxVM, & VERITAS Netbackup.
• Planned, documented and supported high availability, data replication,fail - over and fall-back Solutions using Veritas Cluster Server 5.0, 5.1 in SAN environment.
• Coordinated with SAN Team for storage allocation and Disk Dynamic Multi pathing. Worked on Various SAN Products like Net App, EMC Symmetrix, Hitachi data systems.
• RDBMS installation and support for Oracle, SQL Server, MySQL.
• Worked with Backup Team to Configure the Master and Client Backup servers Using Veritas Net Back up.
• Working Knowledge on Veritas Storage foundation (VSF) and Veritas Volume Replicator (VVR).
• Experience in setting up LANs and WANs.
• Experience in creating grok patterns in logstash.
• Competitive Analysis and understanding of SDN portfolio.
• Good knowledge of Cloud Server, Storage and Networking systems.
• Strong interpersonal and communication skills and the ability to work effectively. 24x7 on call support.

TECHNICAL SKILLS:

OS: Red Hat 3.x/4.x/5.x/6.x/7.x, Ubuntu, CentOS, Fedora and

Database: MySQL.

NoSQL DB: Elasticsearch, Couchbase.

Software: NGINX, HAproxy, memcache, Elastic Beats, Logstash.

Virtualization: VMware.

LINUX Administration: Bash Scripting, YUM, RPM, FTP, Putty, gzip, tar.

Security: OpenSSH, SSL.

Firewalls: Iptables.

Monitoring: Appdynamics, Kibana, Grafana

Misc Network: NIS, NFS, DHCP, DNS, Samba, NTP, Telnet, VPN.

Storage /Distributed: EMC (SAN, NAS) and NetApp (SAN, NAS).

Cloud: Amazon AWS, cloud foundry.

Automation Tools: Puppet, Ansible, Fabric.

Source Control: Git, SVN

CDCI tools: Gocd, Jenkins.

PROFESSIONAL EXPERIENCE:

Confidential, Pennsylvania, PA

Dev-ops

Responsibilities:

• Daily administering of production Nginx servers, ELK active/passive cluster, weblogic cluster, cloud foundry. Manage configuration updates. Creating new automation scripts for all tasks for the team including installing maintaining and constant update using puppet / Ansible.
• Wrote fabric-python script that shortened the time to multitask over multiple serverin parallel execution fashion.
• Worked with creating ELK cluster for logging and auditing purpose.
• Worked with GOCD, creating pipelines.
• Extensive BAU activities every day and been involved in all the RCA when application get alerts.
• Worked with Appdynamics, for application monitoring and alerting.
• Configuring and troubleshooting apache proxy.
• Wrote puppet module for installing and custom configured deployed for some existing infrastructure.
• Managed Puppet infrastructure through major version upgrades. Refactored Puppet code to leverage new features.
• Refactored puppet manifests/ansible playbooks to reflect best practices. Wrote Puppet/Ansible modules for:
• Nginx installation and configuration updates over different datacenters.
• Elasticsearch installation and configuration.
• Kibana installation and configuration.
• Logstash installation and configuration.
• Filebeat installation and configuration.
• Topbeat installation and configuration.
• Appdynamics installation and configuration.
• Docker installation and configuration.
• Upgrading the linux kernel.
• Created module for known issues patching.
• Wrote python scripts to monitor a variety of services.
• Migrated configuration management from Puppet to Ansible.
• Automated system configuration using ansible.
• Worked with a small team to remotely deploy, install, and configure.
• Created very appreciated documentation for numerous systems and processes developed in house.
• Developed numerous tools for use by other groups to better manage our new service offerings.
• Use ansible to orchestrate software upgrades and verify functionality.
• Addressed numerous inconsistencies with infrastructure data (such as package repository and cobbler profiles) to ensure consistent build and installation experience across the entire infrastructure.
• Developed puppet modules to facilitate customer requirements
• Solved user problems rapidly with a 90% first call resolution using remote support tools and developing repeatable solutions and troubleshooting techniques.
• Increased staff productivity by quickly resolving and production outages.
• Created lots of custom grok patterns in logstash for different teams needs.
• And optimized those patterns with new index template in Elasticsearch cluster.
• Used the index values to create visual charts and dashboard in kibana for easy user understanding.

Confidential, El Dorado hills, CA

UNIX System Build Engineer

Responsibilities:

• Worked on variety of Linux platforms Red Hat Linux, AIX, Solaris which includes installation, configuring and maintenance of applications on this environment.
• Wrote puppet manifests for deploying, configuring, and managing collectd for metric collection and monitoring.
• Automated system configuration using Puppet.
• Network and Internet support for managed web hosting in Windows 2008 R2 environment
• Troubleshooting network administration, IIS configuration, DNS setup and modifications, firewall rule sets, local and distributed director, connectivity, and supporting applications
• Responsible for independent support of Tier 2 issues: reboots, start/stop services, reset Terminal Service and pc anywhere connections, and administrative server maintenance. Daily follow up with clients to ensure resolution of all issues.
• Provide support to Account Managers, UNIX and Windows technicians, and other departments
• Build servers using Kick Start, Red Hat Satellite Server, and vSphere Client
• Updating patches to keep servers updated against bugs present in the operating system using Red Hat Satellite Server, yum, etc.
• Worked exclusively on VMware virtual environment.
• Installation and Configuration of SAMBA Server and APACHE Server.
• Setting up SAMBA & NFS servers, to enable Windows & UNIX clients to communicate with Linux without the need of additional software on the Windows side, such as NFS clients.
• Involved in installation and configuration of various Third party software onto servers.
• Involved in ILMT Agent Deployments and Oracle/SQL Upgrade project which includes various Unix builds of different OS platforms across various data centers.
• Co-ordinated with various cross functional teams across IT operations to make sure smooth functioning of projects.
• Worked closely with DBA Team in order to adjust kernel parameters as per requirements.
• Installed, configured and provided support for Tivoli Monitoring software across various OS platforms like RHEL,AIX and Solaris.
• Installed, configured and provided support for Tivoli Net Backup software across various OS platforms like RHEL,AIX and Solaris
• Installed packages using YUM and Red hat Package Manager ( RPM ) on various servers
• Day to day resolution on Linux based issued though SMS ticketing system in compliance to SLA cycles.
• Automating many day to day tasks through Bash scripting.
• Worked with Red Hat Satellite Server which is used to push changes across various servers simultaneously.
• Performed the daily system administration tasks like managing system resources and end users support operations and security.
• Environment: Red hat Enterprise Linux 4.x/5.x/6.1, AIX 6.x, Solaris 8/ 9/10, Tivoli Storage Manager, VMware ESX5, Tivoli Net backup, and Web sphere. Windows 2008 R2 & 2008 servers, Windows 2003, IIS 7.0 &

Confidential, Boston, MA

UNIX Systems Administrator/Developer

Responsibilities:

• Installed Linux OS, and configured required network on virtual machine.
• Configure, and automate the deployment of Linux and VMware infrastructure through our existing Kickstart/Jumpstart infrastructure.
• Strong skills in managing Red Hat Linux servers, SAN Storage (EMC, Hitachi), Virtualization. (VMware, Red Hat enterprise virtualization preferred), and system security.
• Mentor other systems administrators in engineering, installation, configuration, testing and Administration of Linux servers.
• Build, implement and maintain system-level software packages such as OS, Clustering, disk, file management, backup, web applications, DNS, LDAP.
• Configure and maintain FTP, DNS, NFS and DHCP servers.
• Configuring, maintaining and troubleshooting of local development servers. Software Implementations.
• Perform configuration of standard Linux and network protocols, such as SMTP, DHCP, DNS, LDAP, NFS, SMTP, HTTP, SNMP and others.
• Worked on virtual and physical Linux host for decommission, Managed server on VMware vshpere center.
• Strong understanding of VMware vsphere Centre, Configure Linux guests in a VMware ESX environment.
• Understand server virtualization technology such as VMware. Install, test and implement DB2 database management systems and related products.
• Installing IDMU for Linux used username mapping the server, Perform problem determination and resolution for database related problems, Involved in creating pluginnagios.
• Use to monitor and see performance of Nagios, Using Chef and Puppet to deploy Mail software across multiple mail servers.
• Install and run automated Puppet and cheff, Puppet to configure, install, manage and bring up jBoss and applications.
• Manage ongoing changes to configuration in Puppet.
• Experience in managing Brocade SAN switches in dual fabric configuration.
• Zoning new Hosts to NetApp/IBM storage/EMC VNX using Brocade and Q logic switches. Using CLI and DCFM.
• Experience in supporting HDS SAN like AMS, USPV, VSP and XP 9500’s and NAS environment connected using Cisco and Brocade Switches.
• Experience working with company and client documentation and storage procedures.
• Facilitates installation, testing, troubleshooting, and documentation.

Confidential, Bluffton, SC

UNIX Systems Administrator/Developer

Role and Responsibilities:

• Design, implementation, testing and documentation of new and old infrastructure components, services and enhancements.
• Install and configure KVM on RHEL 5.0 by virtual GUI.
• Built Linux Compute Nodes using automated scripts (Kickstart scripts) and DHCP server.
• Installed and configured with variety of OS such as RHEL 5.0, SuSE 10 and Win 2008.
• Provide system administration, operational support, problem resolution, and perform hardware and software installations and upgrades as required by the client infrastructure.
• Created a PXE Boot environment with all the necessary services such as DHCP, TFTP, PXE, OS image sources for four different OS versions.
• Support RHEL V 5.6 servers running in production messaging platform for large Oracle 10g database and SAP basis applications.
• Maintained QA and Dev servers used for Testing implementation of Products.
• Managed Users on Unix/Linux and Windows systems.
• Solved system and network problems using various diagnostics and protocols including, NFS, TCP/IP, and DNS.
• Supported in Server TCP, IP connectivity. Configured all IP definitions, performed testing,
• Network connectivity troubleshooting TCP/IP 10/100BaseT network and Wireless using Cisco and Bay Networks Routers Supporting both Desktop and Laptop PCs using standard PCI, PCMCIA and Wireless NICs.
• Planned, scheduled and Implemented OS patches on both Solaris & Linux boxes as a part of proactive maintenance.
• Involved in the implementation and administration of SAN utilizing products of EMC, Cisco and Brocade.
• Created Zones using Brocade and CISCO Switches
• Provided Server hardware and Application support to Info crossing Data Center group.
• Support Veritas Cluster Server providing high availability environment for critical services.
• Install Veritas Storage Foundation and configure it according to client’s requirements.
• Supported installing and troubleshooting the Unbound ID
• Troubleshoot Blade server and network issues.
• Install and Automation with config management chef.
• Gathered requirements from Engineering team and build application installation documents.

Confidential

Systems Administrator

Responsibilities:

• Writing shell Perl scripting for automation of job.
• Hundreds of servers using puppet.
• Tuning the kernel parameters base on the application/database requirement.
• Use VERITAS file system (VxFS) VERITAS volume manager ( VxVM) to configure RAID 1 and 0
• File system tuning, growing and shrinking with VERITAS file system 3.5/4.x
• Installed and configured GFS cluster for holding databases.
• Validated the servers to check they meet the customer requirements.
• Applications supported on the above servers are Apache/Tomcat
• Setup and manage DNS and DHCP servers.
• Managed Solaris servers, configured mirroring created users and groups, assigned permission o the groups using sudoers.
• Setup LANs and WLANs, troubleshooting network problems, Configure routers and access points.