SUMMARY:

• Over 9.5 years of experience and extensive knowledge in Linux Administration under heterogeneous environments consisting of Red Hat Linux ver 5.x & 6.x, CentOS Linux ver 5.x & 6.x, Suse Linux 11.2, FreeBSD 8.0, Debian based Linux like Ubuntu, Mepis 5, Puppy Linux 5 & 6 and etc...
• Extensive experience in installation, configuration, maintenance, design, Administration, implementation, and support on Solaris, Linux Environment.
• Wide experience of infrastructure technologies and relationships with Major IT Vendors Oracle, IBM, Red Hat.
• Automating with OpsCode Chef, testing chef recipes/cookbooks with Test kitchen/chef spec/server spec.
• Experience working with DNS/DHCP/LDAP/NFS/NIS/NIS+ services.
• Proficient in building and managing configuration management frameworks such as Puppet and CFEngine.
• Implemented automated server provisioning using puppet
• Implemented many tool integrations with puppet for automatic monitoring of servers known to puppet
• Experience working in a Cloud based environment including Amazon Web services(AWS)
• Design, investigation and implementation of public facing websites on Amazon Web Services (AWS)
• Knowledge on cloud computing software platform like Openstack.
• Dedicated to optimization, experienced DevOps Engineer understands the melding of operations and development to quickly deliver code to customers. Has experience with the Cloud and monitoring processes.
• Profound experience providing Web application support.
• Skilled with WebSphere, Tomcat and Apache Web & Application Servers.
• Proficient in UNIX shell programming, patches installation and trouble shoot the cause of failure and monitoring of logs on UNIX systems.
• Administration on Volume Management: Linux LVM, SVM
• Installation Configuration & Administration of VERITAS Volume Manager, VERITAS Cluster Server 5.0, VxFS
• Administration on clusters: Veritas Cluster VCS and Linux cluster
• Experience in PERL, Shell and PYTHON Scripting.
• Extensive experience in Advance installation techniques like Kickstart/Jumpstart
• Installation and configuration of Solaris Zones and ability to work with ZFS/SMF/POOLS.
• Experience in SUDO administration, creation of Volume groups, logical volumes, file systems, trouble shooting file system mounting problems, Implementing RAID levels, user account management and SSH Implementation
• Performing Linux OS Installation, migration, up-gradation and maintenance, from Operating System implementation to application & database implementation, take centralized backups & restore them, applying APAR fixes, patches and service packs and Linux RPM patches.
• Experience in Cloud and Virtualization.
• Experience with NIS, NFS, BIND and Send mail SNMP, TFTP, Iptables.
• Have knowledge on Installation and configuration of File server, Print Server, Application server, Mail Server, Remote server, DHCP & DNS.
• Having good knowledge on F5 Load balancing.
• Experience providing system administration support for enterprise business applications including financial, engineering, web applications. These include Oracle, DB2, SAP, People soft, Web logic, Web sphere, and Apache.
• Deploy, manage, and troubleshoot VMware VSphere Suite 5. 1, VMware View 5. 1, VMware vCloud Director 5. 1, VMware SRM.
• Worked on multiple ticketing tools like HP Service Manager, BMC Remedy and SM9.

TECHNICAL SKILLS:

Technology Expertise: Linux Admin, Shell Scripting, JAVA / JSP / Servlet

Application Servers: Weblogic 11g (10.3.6), JBOSS 3.2.7, JBOSS 4.0GA, JBOSS 6.3.0GA

Operating System: RHEL ver 5.x & 6.x, CenOS ver 5.x & 6.x, FreeBSD 8.0, SUSE 10/11,Ubuntu 8.04, 9.04, 9.10, 10.04 LTS, 12.04 LTS, 13.10, 14.04 LTS

Servers Experience: DHCP Server, SAMBA, DNS (Bind 9), MySQL, PosgreSQL 8.0, NFS

Web Servers: Tomcat 4.1/ 5.5, Apache Web Server 2.4 / 2.3 / 2.0 / 1.2

Middleware: JBoss 4.0, JBOSS 6.3.0 GA

Framework & Patterns: Struts, Hibernate

Databases: MySQL 5.6, MySQL 5.4 MySQL 5.1, PosgreSQL 8.0,SQL SERVER 2005/2012

Platforms: Redhat Linux, IBM-AIX, FreeBSD, Windows XP/2000/2008/2012/NT/95/98

Version Control: SVN, CVS,Maven,Jenkins

Clouding: OwnCloud, OpenStack

Scripting: Python, UNIX Shell, Perl, PHP

J2EE Technologies: JSP, Servlet, JDBC

IDE: Eclipse, Netbeans 6.8, Netbeans 7.3

Automation /Configuration: Puppet, Chef, Cronjob, Shell script base automation

Monitoring Tool: EM7,HPOV,Nagios

PROFESSIONAL EXPERIENCE:

Confidential - Austin

Senior linux admin

Responsibilities:

• Responsible for ensuring Systems & Network Security, maintaining performance & high availability of Servers, Network, Databases & applications. Disk Management partitioning tools like format, file system management ext4, ufs, file system utilities
• Maintaining all systems in smooth running condition and to reduce the downtime
• Maintaining the network availability and uptime Confidential all levels and times
• Automating system jobs through Crontab.
• Implemented automated server provisioning using puppet.
• Experience in installing, configuring, supporting and troubleshooting Unix/LinuxNetworking services and protocols like NIS, NIS+, LDAP, DNS, NFS, DHCP, NAS, FTP, SSH and SAMBA.
• Experience in installation and configuration of Web Apache, JBoss, and IPlanet, BEA Webogic, Websphere, LDAP.
• Managed Disks and File systems using LVM on Linux, Kernel patchingExperience in setup, configuration, upgrade, maintenance, performance monitoring and troubleshooting on different platforms like Sun Solaris, Linux, HP-UX and Windows.
• Responsible for designing High Availability Solutions for different applications. Deploying high available squid, LAMP server and mysql database replication (Master and Slave).
• Handling day to day issues with Puppet Server and Puppet clients.
• Skilled with Web sphere, Tomcat and Apache Web & Application Servers
• Installed configured ORACLE RAC on RHEL 5.x Servers.
• Administration of VERITAS clusters by configuring and adding the new resources to VCS, bringing the nodes offline and online, switching the resources in the cluster.
• Updating RHEL 5.0 to RHEL 7.0 servers and migrating HPUX to RHEL 7.0

Confidential - San Antanio

Senior linux admin

Responsibilities:

• Linux system Administration, New build and configurations, OS Migration, Creation and Maintenance of Linux server and deploying security standards.
• Redhat Linux build & setup for VMware.
• Installed and configured all the Linux servers in the network per specifications of clients.
• Monitored the servers and Linux scripts regularly and performed troubleshooting steps - Tested and installed the latest softwareon server for end-users
• Performed routine checks on the Linux servers of the firm
• Troubleshooting network and Hardware issues on linux servers.
• Maintain and manage VMware infrastructure to ensure stability and availability.
• Fine tune VMs configurations to get the best balance of performance, resource optimization and availability.
• Implemented rapid-provisioning and life-cycle management for Ubuntu Linux using Amazon EC2, Chef, and custom Ruby/Bash scripts.
• Monitor, evaluate and administer to a host of network monitoring tools such as: EM7
• Monitor and maintain the file/CPU system of the application servers to ensure the accessibility for end-users and the application functionality; work with infrastructure team to address application capacity needs.
• Redesign and reimplement DNS infrastructure to reduce complexity, improve performance, simplify administration, and facilitate deployment automation.
• Create file transfer server for customer data exchange.
• Automate network configuration management for all cloud environments.
• Upgrading Kernal version 2.6 to 3.1
• System Administrator/Integrator role in a large team responsible for maintaining of Linux operating systems such as SUSE 10/11.
• Experience with OpenStack Cloud Computing.
• Install Nova Compute and Controller, Deploy instances using the command line.
• Setup Keystone, Glance, Neutron,and Flavor in OpenStack Environment
• Configure Networking on Nova Compute nodes and launching instances .
• Designed and implemented scalable, secure cloud architecture based on Amazon Web Services. Leveraged AWS cloud services such as EC2; auto-scaling to build secure, highly scalable and flexible systems that handled expected and unexpected load bursts.
• Design applications onAWStaking advantage of disaster recovery design guidelines
• Application deployment and data migration onAWS
• Creating proofs-of-concept to demonstrate ideas and concepts
• Experience deploying and operatingAWS, specifically VPC, EC2, S3, EBS, IAM, ELB, Cloud Formation and Cloud Watch using theAWSconsole andAWSCLI.
• Created security groups for both inbound and outbound traffic following the naming convention.
• Created Security groups specific to the infrastructure and included where appropriate as per the requirement.
• Installed, secured, and configured AWS cloud servers with Linux, Tomcat, MySQL, Apache, etc.
• Hands on Puppet configuration Management.
• Implemented automated server provisioning using puppet
• Implemented puppet to manage all of our existing servers and automate the build/configuration of new servers. All server types were fully defined in puppet, so that a newly built server could be up and ready for production within 30 minutes of OS installation.

Confidential - Indianapolis

Sr. Linux/AWS Administrator

Responsibilities:

• Installation and configuration of Solaris, Linux for new build environment
• VERITAS and Sun Cluster Administration
• Administering Solaris 10 zones by creating whole root zones, deleting zones, installing several software needed by the application team on zones.
• Hands on Puppet Configuration Management.
• Implemented automated server provisioning using puppet.
• Strong experience in supporting IBM-AIX.Also supported RHEL and SUSE server environments.
• Experienced in installation, configuration, tuning, security, backup, recovery and upgrades of IBM AIX.
• Experience in Working on AIX LVM.
• I have experience on troubleshoot database packages that failed to compile during deployments. Some of the tools I used were Jenkins, Chef, Ant.
• Implemented tool integrations with puppet for automatic monitoring of servers known to puppet
• Experience working in a Cloud based environment including Amazon Web services(AWS)
• • Built encrypted VPN's using Cisco routers and PIX/ASA firewalls and toAWSVPC - Point-to-Point, software clients, AnyConnect, and web vpn
• Hands on experience inAWSprovisioning and good knowledge ofAWSservices like EC2, S3, Glacier, ELB, RDS, SQS, SWF, EBS etc.
• Application deployment and data migration onAWS.
• Using splunk to do the log analysis
• To design high availability applications onAWSacross availability zones and availability regions
• Ability to design applications onAWStaking advantage of disaster recovery design guidelines
• Prepared, arranged and tested Splunk search strings and operational strings.
• Created and configured management reports and dashboards.
• Skilled with WebSphere, Tomcat and Apache Web & Application Servers
• Administering zpools by creating zpools adding disk to the zpools, adding spare disks to the zpools and involved in replacing the disk failures in zpools.
• Installed different virtualization products such asvmware server 2.0, ESX 3.5/4.0on a physical server which in turn will host different virtual servers running different SUSE versions, Linux, Solaris etc.
• Adding Disks and creating Slices and File system Administration
• Monitoring collection statistics of servers, Manager runs, Disk Space of BMC infra
• Worked on capacity planning tools like BMC Performance Assurance tool and SRM(Server Resource Manager)
• Addition, Deletion and Modification of servers to BMC
• Installation of BMC perform Agents7.410 and above to the servers of all flavours
• Upgrading BMC infrastructure on production servers
• Trouble shoot BMC collection issues
• Handling Projects and providing performance and capacity analysis reports and recommendations’ to customer requirements.
• Monthly and Quarterly Health check reports with performance analysis
• Handling Ad-hoc requests from the customer by providing the reports with Performance and capacity analysis with recommendations
• Hands on experience on various ticketing tools like BMC Remedy, and Support Now SM9.

Environment: RHEL ver 5.x, CenOS ver 5.x, JBOSS, MySQL, NagiOS monitoring, Tomcat 5.5, Unix scripts, Zimbra, Endian Firewall, Ticketing System, SugarCRM.

Confidential

UNIX Administrator

Responsibilities:

• Faulty Part replacements like Memory DIMM server battery replacement.
• Handling basic issues of Storage like disk replacement and raising service request with EMC.
• File system housekeepingissues.
• Performing the Change request for the different hardware part replacement.
• Creating the Standard Operation Procedure for different types of issue.
• Ability to write scripts to perform the daily and routine work.
• Writing scripts /modifying existing scripts to automate the resolution for a new issue / existing issue which could minimize the individual involvement.
• Deploying auto resolution for an automated ticket with PAS automation.
• Working on hardware failure like failed battery / failed hard disk issue with vendors.
• Renewingthe expired SSL certificate.
• Taking thread dump and heap dump for hung instances.
• As per Vendor recommendation fixing the vulnerability in the Client Environment (alike ssh vulnerability,SSL Vulnerability)
• Patching the Linux servers on all the environments (Prod,Pre-Prod and Testing) of Customer.
• Identifying the necessity of the changes to the customers environment in respect of hardware as well as application and completing the process of soc validation, approvals and executing the changes
• Monitoring various tools (hpov,sitescope,netiq) and to take action based on customer driven procedures and taking appropriate actions to bring the service to return (RTS) with in the frame of the predefined SLA for the customers.
• Working on the various incidents and service requests coming through both the service lines remedy and ETMS.

Environment: CenOS ver 5.x, Fedora Linux, JBOSS, MySQL, PosgreSQL 8.0, NagiOS monitoring, Tomcat 5.5, Unix scripts, Zimbra, QMail Server, ASTERISK, A2Billing with Asterisk.