SUMMARY

• Over 8 years of experience in System Builds, OS Installs, Application Installs, Performance Tuning, Backup and Recovery, Networking, Storage, Capacity Planning and Automation on Unix Servers.
• Experience with the Installation, Configurations, maintenance and support on heterogeneous platforms like Redhat Linux, Centos Linux, Oracle Enterprise Linux, Solaris, VMware, Virtual Box, AWS, Windows, and HP - Unix.
• Manage virtual and physical cloud resources as required with an overall objective of improving the scalability, reliability, performance, and availability of the cloud infrastructure.
• Experience with the Application Deployment and Maintenance (Security, Upgrades, Patching, Backup, cloning b/w the environments) on Organization's Environment.
• Strong in troubleshooting, monitoring, training and 24/7 production support in production environment.
• Expertise with the crontab and autosys for scheduling jobs.
• Strong understanding and Experience with the agile development, Waterfall model and other process models.
• Exposure to the Version Control Repositories like SVN, Jira and GIT.
• Knowledge in the process of transitioning to DevOps practices includes an understanding of best practices, implementation strategies and integration strategies and analysis of related tools.
• Familiar with J2EE application development and Java application servers (WebLogic, Websphere, Tomcat).
• Worked in Continuous Integration (CI), Continuous Delivery/Deployment (CD) Environment and have experience in administering continuous integration (CI), delivery and build automation tools like Jenkins, Hudson etc.
• Experience with build scripting tools (e.g. Ant, Maven).
• Familiar with unit testing and code-coverage tools as well as test automation techniques and tools.
• Solid scripting Experience (Bash, Ruby, Python, Perl, PowerShell).
• Strong knowledge of TCP/IP network, load balancing, firewalls
• Experience with enterprise monitoring systems like Nagios
• Experience with following Log Monitoring solutions: Splunk, & Elasticsearch, Graylog.
• Experience with the firmware upgrades, security patches Installations, Upgrades and Package Configurations
• Migrated from platforms like Solaris to Linux and HP-Unix to Linux.
• Experience in Major and Minor Upgrades of Linux, Solaris.
• Experience with performance tuning in changing kernel parameters, configurations, upgrades, network tuning etc.
• Experience in customizing the kickstart, jumpstart, cobbler and VM templates to automate the installation of various servers.
• Experience with Management of Users, Security, Configuration, Monitoring on LINUX/UNIX Servers.
• Experience in managing Oracle 10g/11g/12c Databases, Grid Control including Enterprise Manager backups.
• Experience with the monitoring tools like Nagios, Check mk, Splunk.
• Experience in working on virtualization products like VMware, Vsphere, Solaris Zones ESX 3.X/4.X and Xen 3.X
• Strong working knowledge of TCP/IP, UDP/IP, OSI Model, Switch and Router Configurations, Firewall (Juniper, CI SCO).
• Experience in configuring DNS, DHCP, NFS, NTP, SSH, HTTP, HTTP/S.
• Experience with load balancers (NetScaler, F5) and Wireless Controllers.
• Experience in implementing and monitoring High Availability environment using Redhat Cluster, veritas cluster, and Oracle Rac cluster.
• Migrated multiple single servers to clusters /HP Blade Servers, Physical servers to VM's on Hypervisor
• Hands on experience on SSL Authentication /Authorization mechanism such as Basic, LDAP, NTLM, Single Sign On, SSH, SCP, Firewall.
• Experience in disk cloning between the environments with clonzilla, dd and others.
• Experience in managing SAN, NAS (EMC and Netapp Storage arrays).
• Experience with the Symantec Net Backup and Tivoli Storage Manager ( TSM )
• Expertise in Installation, Configuration, file system management and RAID Volume management through Solaris Logical Volume Manager ( SLVM ) and Logical Volume Manager ( HP-UX, Linux) and Veritas Volume Manager (VxVM).
• Experience with the installations and configurations of Apache, Tomcat, and jboss.
• Experience in Installation, Upgradation, Administration of Jenkins.
• Experience with configuration for multiple WebLogic domains.
• Experience with AWS CLI (Command line interface) for automating administrative tasks.
• AWS administrator which manages AWS, and also includes to manage EC2 (Amazon Elastic Compute Cloud) resources.
• Experience in deploying and maintaining private cloud infrastructure of OpenStack.
• Knowledge in configuration of Code Commit and Code Deploy.
• Experience with the configuration management tools like Chef, Ansible, and Puppet.
• Knowledge on DevOps practices like continuous Builds, Testing, Integration and Delivery.
• Experience with the shell scripting on bash shell, K shell and python to automate the system administration jobs.

TECHNICAL SKILLS

Operating Systems: RHEL 4/5/6/7, Cent OS 5/6/7, Oracle Enterprise Linux 5/6/7, ESX4.X/5.X, ESX 6, Solaris 9/10, IBM-AIX 5.X, windows family.

Hardware: HP Proliant, Blade Servers, SUN Sparc, SUN Fire, AIX IBM.

Web & App Server: Apache/TOMCAT Web Server Administration, Apache (httpd), jboss, Dockers, Glassfish, DNS, Sendmail.

Languages: Bash Shell Scripting, JAVA, HTML, CSS, C, C++, PL/SQL, Python.

Databases: Oracle 9i/10g/11g RAC, MS SQL SERVER 2008/2012, MySQL Server 5.0.23 - 5.6.24 , Cassandra, MongoDB.

Backup Tools: Tivoli Storage Management (TSM), Avamar, Baracuda.

Storage Devices: SAN, NAS, EMC Power Path 4.0, VERITAS SAN Point Manager, RAID Manager, 3PAR.

Networking: TCP/IP, UDP/IP, DHCP, DNS, SMTP, NFS, CISCO Switches/Routers/Access Points, NLB (Load Balancer).

Security: IP Tables, SELinux.

Configuration Management Tools: Chef, Ansible, Puppet.

Virtualization: VMware, Vsphere Client, Virtual Box, XEN, KVM.

Others Tools: Nagios, Check mk, Splunk, Wire shark, Oracle Enterprise Manger (OEM), Jenkins, Bamboo, hudson, Netcool, JIRA, OpenStack, Clearquest, Symmantic Netbackup, TSM, NIS, NIS+, HaProxy, HP Quality Center, NGINX, LDAP, Toad, putty, Sql Server Management Studio, MySQL Workbench.

PROFESSIONAL EXPERIENCE

Confidential, Atlanta, GA

Senior Linux Administrator

Responsibilities:

• Installation, evaluation, implementation, automation, integration, analysis, maintenance, and problem resolution for enterprise system software, enterprise server hardware, and storage.
• Installation and configuration of Ubuntu Trust 14.04, 14.10, 15.04, 15.10, CentOS 6/7, Fedora 22, on both standalone and virtual environment.
• Responsible for applying patches using repository on Linux Servers.
• Responsible for Installing vendor binaries and proprietary software, utilities, compilers, databases & licensing.
• Converted many packages from python to rpm’s, debs to rpms using EPM (Efficient Package manager) tool.
• Ensuring all production systems maintain adequate HA (high-availability) and DR (disaster recovery) protection.
• Deployed applications on CentOS 6/7 environment and resolved deployment issues on enterprise environment.
• Configured and Maintained Apache, Tomcat, and Django Servers.
• Experience on Configuration Management tools like Chef, Ansible.
• Designed, implemented, maintained and troubleshooting of High available critical applications running on Apache and MySQL/Postgres database.
• Maintenance of virtualization on KVM, and on Eucalyptus.
• Lead the migration of Linux based web servers to AWS cloud platform.
• Proactively monitor, enhance and resolve issues related to the daily operations of the AWS infrastructure.
• Checking and tuning Linux Kernel parameters for better performance.
• Automation of regular administration tasks with the Shell Scripting and Configuration management tools (Chef).
• Job Scheduling through crontab and autosys.
• Worked with the GIT Hub Repository in deploying applications to the environment.
• Performed tuning to increase the performance on deployed server.
• Provides support to IT systems including day-to-day operations, monitoring and problem resolution for all of the client/server/storage/network devices etc.

Environment: Red hat Linux 6/7, Fedora22, Ubuntu 14.04, 14.10, 15.04, 15.10 Oracle 10g/11g RAC, JDK 1.5, 1.6, VMware Virtual Client 3.5, CentOS 6/7, IBM X Servers X220, X240, X2950, X3200, X3400, X3550, X3650, X3650M2, X3650M3, X3650M4, X3850. HP Blade Servers, DNS,NFS,SMTP, Tomcat, JIRA, GIT Hub, Jboss, Sun Solaris 10, HP DL380 G5, HP DL360 G4, HP Quality Center, vSphere4.1/5.1,Chef, Configuration management tool.

Confidential, Houston, TX

Senior Linux Administrator

Responsibilities:

• Documented Process and Procedures using wiki by conducting review meetings.
• Installation, evaluation, implementation, automation, integration, analysis, maintenance, and problem resolution for enterprise system software, enterprise server hardware, and storage.
• Installation and configuration of REDHAT Enterprise Linux 5.5/6, Oracle Enterprise Linux 5/6, Cent OS 5/6, Sun Solaris 10, on both standalone and virtual environment.
• Standardized OS Installation Process by using cobbler which reduced Installation issues.
• Responsible for configuration and upgrades & interaction with development team to troubleshooting system errors & failures.
• Responsible for applying patches using Patch Center on Linux Servers.
• Responsible for Installing vendor binaries and proprietary software, utilities, compilers, databases & licensing.
• Networking and infrastructure monitoring, management and alerting tools.
• Configuration and administration of DNS, FTP, DHCP, LDAP, SAMBA and Sendmail servers.
• Worked on load balancers and other high availability solutions.
• Responsible for Storage management, NIS and NFS management.
• Good Understanding in EMC and NETAPP Storage.
• Responsible for maintaining incremental, weekly and monthly backups.
• Responsible for Application Deployment on Production, Test and QA Environments.
• Deployed applications on RHEL 6 environment and resolved deployment issues on enterprise environment.
• Managed Information UNIX server security administration & Monitoring system Performance.
• Configured and Maintained Apache, Tomcat, jboss, Tuxedo Servers.
• Automated the apache installation and its components using puppet.
• Familiarity with the principles and practice of system configuration management.
• Knowledge on Configuration Management tools like Puppet.
• Monitored Organization environment through Nagios, Check mk.
• Designed, implemented, maintained and troubleshooting of High available critical applications running on Apache and Oracle database using Red Hat Cluster suite and Veritas Cluster.
• Management of Oracle 11g/12c databases, ASM Grid, Oracle 11g RAC.
• VMware vSphere 5.x Administration and Support.
• Responsible for maintaining incremental, weekly and monthly backups on openstack databases, CSA OO databases.
• Plan and deploy OpenStack computing clouds for development, testing and production environments.
• Migrated Physical Servers to the VM's on Hypervisor and cross platform migrations from Solaris and Linux.
• Checking and tuning Linux Kernel parameters and Solaris for better performance.
• Provided enterprise risk assessment mechanisms and reporting.
• Automation of regular administration tasks with the Shell Scripting.
• Job Scheduling through crontab and autosys.
• Supported PeopleSoft applications and other business Analytics applications.
• Worked with the SVN Repository in deploying applications to the environment.
• Performed tuning to increase the performance on deployed server.
• Provides support to IT systems including day-to-day operations, monitoring and problem resolution for all of the client/server/storage/network devices etc.,
• Worked with many hardware devices such as HP Servers (ProLiant DL380 G6, DL360PG8, DL580 G5, DL320 G4, DX 7500, DL 580 G5, DL 365 G5, DL 320, DL 360 G7, DL 320 G4, DL 320 G3, DL 365 G5) Apple RAID, Barracuda Backup server 990, EMC2 VNX 5200, VNX 5600, VNX 7600 and VNX 8000, EMC2 DS 6505, Avocent Universal Management gateway, Avocent MergePoint Unity Switches, Checkpoint UTM-1 1070, MGE UPS systems.

Environment: Solaris 9/10, RHEL 5.x,6.x, OEL 5/6 SUES 4.1, Sun T2000, M4K, M8K, T5140, T5240 Sun Firev890,Sun Firev440, Sun Firev490, HP-ProLiant, HP Quality Center, IBM Blade, VERITAS Volume Manager, Puppet, VCS, SVM, VMware ESX.

Confidential, New York City, NY

Linux Administrator

Responsibilities:

• Maintained and support mission critical, front end and back-end production environments.
• Provided Tier 2 support to issues escalated from Technical Support team and interfaced with development teams, software vendors, or other Tier 2 teams to resolve issues.
• Configured several load balanced web servers using nix based load balancer like Amazons elastic load balancer.
• Installations, Configurations, Maintenance and monitoring RHEL 4.0/5.0, Solaris 8/9/10, SUSE and Windows Servers, including oracle instances.
• Worked on A1000 StorEdge storage disk arrays and configured in RAID 0, 1 and 5 levels. Good knowledge in RAID concepts.
• Installation in the patches, Hardware and Software servers.
• Create, analyze, and modify server security configurations.
• User administration on Sun Solaris and RHEL systems, HP-UX machines, management & archiving.
• Install and configure DNS, DHCP, SAMBA, Sendmail, NFS&NIS..
• Create and configure DNS records for internal and external name resolution.
• Implement and Manage network infrastructure such as firewalls, switches and routers.
• Design and Deploy new high available production network with redundant firewalls, load balancers, Linux based web, app and database servers.
• Configuration and administration of Web (Apache) Configuration and administration of Web (Apache)
• Worked on Logical Volume Manager on Linux and Solaris Volume Manager on Solaris.
• Responsible for Server Performance monitoring, analysis and tuning.
• Supported SQL and Oracle Database Servers.
• Worked with DBA team for database performance issues, network related issue on Linux / Unix Servers
• Worked on cronolog in Linux servers for managing the logs of the web servers and performed automation using shell, python scripts.
• Worked with monitoring tools such as Nagios.
• Responsible for managing Amazon AWS Dev instances.
• Performing bench marks on cloud stack as like Amazon AWS to setup private cloud
• Creation of VMs, cloning and migrations of the VMs on VMware vSphere 4.0
• Installed and configured VMware ESX server instances for virtual server setup and deployment.
• Responsible for creating VMware virtual guests running Solaris, Linux, Windows.
• Automated system management tasks like user account creation, file system size monitoring, monitor system resources and system maintenance using Shell Scripts.
• Maintained and monitored all organization servers’ operating system and application patch level, disk space and memory usage, user activities on day-to-day basis.

Environment: Solaris 8/9/10, RHEL 4,5,6 (Linux), OEL 5, ESX 4.1, Sun T2000, M4K, M8K, T5140, T5240 Sun Firev890,Sun Firev440, Sun Firev490, HP-ProLiant, IBM Blade, VERITAS Volume Manager, VCS, SVM & Sun Clusters, HP-Unix 11.1 VMware ESX/ ESXi.

Confidential, CA

UNIX/Linux Administrator

Responsibilities:

• Responsible for day-to-day System Administration for Linux Red Hat and Solaris servers.
• Build the E450 and 6500 Servers with Solaris operating system.
• Storage setups, RAID, Logical Volume Manager, system backup design and disaster recovery.
• BIOS UPGRADE and OS installations and configurations and maintenance
• Configuration of Hardware and Software RAID on Digital & Sun Servers.
• Configured VERITAS File system and VERITAS Volume Manager.
• Solaris Operating Systems upgrade, package installations, updates, patches and software fixes.
• Creating User accounts, Mail account, groups, printer etc.
• Set up Quotas for the user accounts & limiting the disk space usage.
• Creation/Configuration of Additional swap/ tmp dynamically as and when required.
• Networking communication skills and protocols such as TCP/IP, Telnet, FTP, SSH.
• Configuration and maintenance of NIS, NFS, DHCP and DNS Servers on Solaris.
• Performed tasks on F5 load balancer like installing and renewing SSL certificates and bouncing servers with performance issues after taking them out of the server pools.
• NFS Management - Take care of user accounts/groups, setting up of NFS Environment.
• Solving the problems as & when created when NFS data being accessed.
• Configuration and maintenance of Apache and Tomcat Servers.
• Modifying/ Writing scripts in Bash and Corn shell for optimizing day to day administration
• Monitoring system resources, logs, disk usage, scheduling backups and restore.
• Performed administrative tasks such as system startup/shutdown, backups, Printing, Documentation, User Management, Security, Network management, configuration of dumb terminals.
• Systems performance monitoring and troubleshooting end user and application problems.
• Installation of Oracle Patches and Troubleshooting, Creating and modifying application related objects, Creating Profiles, Users, Roles and maintaining system security.
• Worked closely with database administration staff to ensure optimal performance of databases, and maintain development applications and databases.

Environment: Solaris 10/9 Sun E10K and E15K Servers, Sun Enterprise 6500/500/4500/450/ 420 R/250 Servers, Ultra Enterprise 2/1 Servers. ProLiant DL380 G6, DL360P G8.Checkpoint UTM-1 1070 (AXIS, MOUSSA)

Confidential

UNIX System Administrator

Responsibilities:

• Performed server installation using Kickstart, Network, and DVD on physical servers
• Performed server updates, patching, upgrades and package installations using RPM and YUM
• Installed and maintained Linux and third party software
• Installed and implemented new patches to the Linux operating system software
• Performed NetBackup and Recovery, maintained regular backups using tar, ufsdump, ufsrestore, Snap shot, etc and fixed NetBackup issues
• Achieved and exceeded NetBackup Restore success goals, which consistently contributed to positive customer citation for the program
• Experience with SAN Storage architecture
• Performed software troubleshooting and resolved NFS, and TCP/IP network issues
• Coordinated application and server shutdowns before, during and post datacenter outage
• Resolved customer problems by analyzing Remedy records, customer asset histories, trouble ticketing systems, and related documents
• Coordinated internal and external resources, other customer deliverables, local systems, other departments and workgroups to troubleshoot and resolve issues
• Implemented IPTables and ACL on RedHat Linux servers
• Utilized and documented effective process of kickstart and ignite for systems builds/recovery

Environment: Solaris 8/9/10, RHEL 4,5,6 (Linux), OEL 5, ESX 4.1, Sun T2000, M4K, M8K, T5140, T5240 Sun Firev890,Sun Firev440, Sun Firev490, VERITAS Volume Manager, VCS, SVM & Sun Clusters, VMware ESX/ ESXi.