SUMMARY

• 7+ years of extensive experience in System administration, NAS Administration and Enterprise application support working on RedHat Linux 4.x/5.x/6.x, VMWare ESX 3.5/4.0 & 4.1, Solaris 8/9/10, IBM p series 4.x/5.x/6.1, SUSE Linux
• Expertise in Installation, Configuration, Integration, Tuning, Backup, Crash recovery, Upgrades, Patching, Monitoring System Performance, System and Network Security and Troubleshooting of Unix Servers
• Configured and used Jumpstart, Kickstart, Ignite and NIM to install OS
• Had 6+ years of experience in administration, installation and configurations of Apache web servers
• 2+ years of experience on handling Amazon web services (AWS)
• Managing data centers VPS, solusVM, cpanel/WHM etc
• Experienced in implementing Dev Ops tools Splunk, Puppet, Docker, Chef, Git and Jenkins
• Proficient in configuring the Data Communication Devices such as Routers, Switches, Hubs, Terminal servers and Troubleshooting LAN and First Level WAN Related Problems
• Experience with high - end enterprise servers Sun T2000, 5240, M5000, 6800, 4800, HP ProLiant DL 380, 385, 580, IBM HS22, HS12, LS22 Blade center Servers
• Proficient in Networking IPv4/IPv6, configuring TCP/IP, VLAN, DNS, NFS, NIS, NIS+, SAMBA, LDAP, SSH, SSL, SFTP, SMTP, SNMP
• Experience in creating physical volume, logical volume, volume groups using LVM’s in Linux/AIX, HP-UX (ITANIUM and PA-RISC) and SVM, GFS(global file system)
• Experience in Installation, Configuration and Troubleshooting of various web server issues including IBM HTTP Server, Apache Web Server 2.x/1.x, Tomcat 5.x/4.x/3.x.
• Worked on Puppet, HP Opsware, Nagios, Nimbus, Spectrum, Cacti monitoring, configuration management softwares.
• Efficiency in installing, configuring, and implementing of RAID 0, RAID 1, and RAID 5 levels using Logical Volume Manager, VERITAS Volume Manager and Solaris Volume Manager
• Good experience in setting up of RAID0, RAID1 (mirroring) and RAID5 for data redundancy
• Experience in Migrations using different software’s like EMC open migratory, LVM, rsync etc
• Experience working Red Hat GFS and Veritas Cluster File system
• Worked with Database administrators to tune kernel for Oracle installations on Red Hat Linux
• Configured Network Concepts NFS, DNS, NIS and DHCP, troubleshooting network problems such as TCP/IP, providing support for users in solving their problems
• Installation and configuration of web hosting administration such as FTP, SSH, RSH, Telnet, and HTTP.
• Strong knowledge of system performance and monitoring tools
• Running security scans and remediating Servers to meet enterprise standards
• Installing, configuring, and maintaining Samba Web Servers, WebLogic and WebSphere Application Servers, and Oracle, SQL and Sybase database technologies
• Moved RHAS machines from physical to virtual including VMware ESX 3.5 and VSphere 4.0
• Managed Patches, Upgrades and Licensed Products for System software on all flavors of UNIX and Linux Servers

TECHNICAL SKILLS

Hardware: SUN Enterprise- E 5000/5500/6500 , SUNFIRE 3800/4800/6800 , E10K/15K Series Servers, HP-9000, rx8640, rp7420, rp8420, N-Class, L-Class, D-Class, K-Class, IBM e-Server Regatta P690, P570, RS6000, IBM/HP/DELL Blade Servers, SAN(EMC, Hitachi), NAS (Netapp)

O / S: HP-UX (11.00, 11.11, 11.23, 11.31), Red Hat Linux (RHEL 3/4/5), AIX, Windows NT /2003/vista

Naming Services: DNS, NIS, and NIS+

Backup Management: VERITAS Netback up 4.x/5.x/6.x, Ufsdump, ufsrestore, tar, dd, cpio

Script Languages: Shell scripts, PERL

Web Technologies: Apache 2.x/3.x, IPLANET 4.x/5.x, WEBLOGIC 8, Websphere 4.0/5.0/6.0

ThirdParty Software: VERITAS Volume Manager, LVM, LDAP, SSH

Cluster: Veritas Cluster Server (VCS), Sun Cluster, HP Service Guard

RDBMS: Oracle, MS SQL Server

Protocols: NetBIOS, NetBUI, SMTP, SNMP, ICMP, TCP/IP, FTP, TELNET, UDP & RIP, DNS, WINS, DHCP.

PROFESSIONAL EXPERIENCE

Confidential, Denver, CO

Red Hat Administrator

Responsibilities:

• Installation, Maintenance, Administration and troubleshooting of Red Hat Enterprise Linux 5/6 systems
• Performed automated installations of Operating System using kickstart for Red Hat Enterprise Linux 5/6
• As a Red Hat administrator primary responsibility includes building of new servers which includes rack mounting, installation of OS, configuring of various OS-native and third party tools, securing of OS, installing & configuring, job scheduling
• Remote monitoring and management of server hardware
• Involved in Server sizing and identifying, recommending optimal server hardware based on User requirements
• Disk Replacement Strategy on AIX
• Installed Red Hat Enterprise Linux 5/6 Operating System on servers and Blades over the network
• Installed, configured and provided support for Tivoli Monitoring software across various OS platforms like RHEL, AIX
• Developed Unix shell scripts and command line scripts to automate daily routine tasks
• Wrote UNIX shell scripts for automated installations, to extract logs using C, Bash, Perl, and Python
• Created Power Shell script that monitored Oracle Enterprise Manager Status and emailed results
• Configure and maintain Active Directory. documentation, network configurations, and topologies including but not limited to TCP/IP, Frame Relay, Bridges, and Routers
• Used Nagios for network monitoring and Secure Socket Layer (SSL) for secure access. Also formatting Firewalls, network switching and routing settings for extra client security. Configured Certificate Authority to sign Certificate Requests for SSL and configure secure talk for LDAPs, HTTPs, and SMTPs
• Performing, monitoring, and tuning using top, prstat, sar, vmstat, ps, iostat
• Managed HPC cluster, performed hardware, BIOS and application upgrade
• Used Puppet tool for managing system configurations
• Installation, configuration and administration of VMware, Containers and Ldoms
• Planning and implementing system upgrades including hardware, operating system and periodical patch upgrades.
• Extensive use of Bash shell for scripting
• Validating and testing the repository locally in Oracle Virtual Machine platform
• Troubleshoot AIX problems on all LPAR environments
• Expertise in Linux backup/restore with tar including disk partitioning and formatting
• Involved in development, user acceptance, and performance testing, production & disaster recovery server
• Set up user and group login ID's, printing parameters, network configuration, password, resolving permissions issues, user and group quota
• Involved in creating new users, groups and setup their home directories and appropriate access restrictions to software in the Active Directory environment
• Support includes active directory, network, printer, e-mail, account, permission, group policy, domain, software and hardware troubleshooting
• Creating and maintaining user accounts, profiles, security, rights, disk space and process monitoring

Environment: cisco UCS B-series blade servers, Red Hat Linux Enterprise servers, AIX, VLAN, SAN(Netapp), BladeLogic, Veritas Cluster Server 5.0, VMware Virtual Client 4.1, VMware Infrastructure 4.1, vsphere 5.5, WebSphere application server.

Confidential, Portland, OR

AWS/Devops Engineer

Responsibilities:

• Installed, deployed, and upgraded AWS Cloud-based servers and services in accordance with Federal standards and project guidelines
• Built and Configured Linux Servers in AWS Cloud Environment
• Created and hardened an Amazon Machine Image (AMI) utilizing Centre for Internet Security (CIS) benchmarks to be used.
• Updated the AMI with the latest patches
• Utilized AWS to set up Virtual Private Clouds (VPCs) for Management, Production and Testing environments with customer operational requirements and parameters (e.g., internet gateway, subnets, elastic IP, and Security Groups).
• Utilized other AWS Cloud Computing platforms and its many dimensions of scalability including but not limited to: VPC, EC2, ELB, IAM, SQS, S3, auto scaling architectures, using EBS under high I/O requirements, custom monitoring metrics/analysis/alarms via Cloud Watch, the AWS CLI, to meet client's needs and project requirements
• Repair and recover from system or application failures
• Develop and maintain installation and configuration procedures
• Investigate and troubleshoot issues per request from various constituencies
• Experienced in branching, tagging and maintaining the version across the environments using SCM tool like GIT.
• Performed all Linux operating system, disk management and patch management configurations, on Linux instances in AWS

Environment: EC2, S3, EBS, Elastic Load balancer (ELB), auto scaling groups, VPC, IAM, Cloud Watch, Glacier, GIT version control, VMware, RHEL 5.x/6.x, Nagios, Puppet, Maven, Shell Scripting, python Apache Web Server, IBM Application Server.

Confidential, Dallas, TX

Dev Ops Engineer

Responsibilities:

• Devops Engineer for a team that involved different development teams and multiple simultaneous software releases
• Developed and implemented Software Release Management strategies for various applications according to the agile process
• Imported and managed multiple corporate applications into Tortoise SVN Provided end-users training for all Tortoise SVN, JIRA users to effectively use the tool
• Build scripts using ANT and MAVEN build tools in Jenkins to move from one environment to other environments
• Deployed J2EE applications to Application servers in an Agile continuous integration environment and also automated the whole process
• Developed shell scripts for automation of the build and release process
• Managed Maven project dependencies by creating parent-child relationships between Projects
• Jenkins is used as a continuous integration tool for automation of daily process
• Used SQL queries to check the data integrity on an Oracle data base
• Documented the entire build and release engineering process and provided on call support
• Hands on experience in administration, maintenance, troubleshooting & involved in resolving tickets like Incident Management, Change Management & Problem Management tickets as per SLA
• Coordination between Application Support Team(Team supporting the application), Testing team, Release Management (Team responsible for releasing application in Production Environment) for streamlined successful application release in Production Live environment
• Experience in finding Root Cause for WebSphere Problems and handling Problem Management Records (PMR) with the IBM and working with them on various issues related to Updating unresolved bugs or issues

Environment: ANT, MAVEN, Tortoise SVN 1.6, 1.7, Chef, Jenkins, GitHub, Java/J2EE, Shell Scripts, UNIX

Confidential, Gaithersburg, MD.

Linux/Unix Administrator

Responsibilities:

• Installation, Maintenance, Administration and troubleshooting of OEL, Linux, HP-UX systems
• Performed automated installations of Operating System using kickstart for Linux
• As a Linux administrator primary responsibility includes building of new servers which includes rack mounting, installation of OS, configuring of various OS-native and third party tools, securing of OS, installing & configuring, job scheduling
• Extensively worked on hard disk mirroring and stripe with parity using RAID controllers
• Involved in Server sizing and identifying, recommending optimal server hardware based on User requirements
• Installation and configuration of Veritas Storage Foundation Suite::Veritas Volume Manager, Veritas File System, Veritas Cluster Server and Oracle SF RAC
• Installed the Operating System Linux servers and Blades over the network
• Built servers according to standards specified as per individual applications
• Created File systems from local storage as well as NFS partitions for application portability
• Build LPAR system and Installed on LPAR using NIM Power 4, 5 and 6 systems and Upgraded Maintenance level as well
• Installed and verified that all Linux patches or updates are applied to the servers
• Configured HACMP 4.5 to monitor, detect and react to failure events, allowing the system to stay available during random, unexpected software problems and also configured to react to hundreds of system events
• Installing, administering Redhat using Xen, Oracle Virtual Machine based hypervisors
• Preparing servers for Oracle RAC installation which includes tuning the kernel, agent installation, adding NAS storage.
• Worked on resolving production issues and documenting Root Cause Analysis and updating the tickets using BMC Remedy
• Designing Firewall rules for new servers to enable communication with application, Oracle 10g servers coordinating performance testing and load testing
• Monitored server and application performance & tuning via various stat commands (vmstat, nfsstat, iostat etc) and tuned I/O, memory, etc.
• Coordinated with the Storage, Network and Hardware teams on server provisions (HP Proliant DL385/585 G5, G6 servers, and HP BL 465C G5 blade centers)

Environment: RHEL 5.x,6.x, Red-Hat Linux Enterprise servers (HP Proliant DL 585, BL 465/485,ML Series), SAN(Netapp), BladeLogic, Veritas Cluster Server 5.0, Windows 2003 server, Shell programming, Jboss 4.2, JDK 1.5,1.6,, VMware Virtual Client 3.5, VMware Insfrastructure 3.5.

Confidential, Miami, FL

Linux Administrator

Responsibilities:

• Installation and administration of RHEL 4.0/5.0 and SUSE 10.x.
• Configured kickstart server and updating/applying patches to the servers using Redhat Satellite server
• Remote system administration using tools like SSH, Telnet, and Rlogin
• Planning and implementing system upgrades including hardware, operating system and periodical patch upgrades.
• Installation, configuration and administration of VMware, Containers and Ldoms
• Automation of jobs through crontab and autosys
• Installation of packages, patch management, volume managment on Suse servers using YaST
• Applied appropriate support packages/patches to maintain system integrity
• Performed capacity analysis, monitored and controlled disk space usage on systems
• Monitored system activities and fine tuned system parameters and configurations to optimize performance and ensure security of systems
• Adding servers to domain and managing the groups and user in AD, installing and configuring sendmail
• Custom build of Windows 2003 and Windows 2008 servers which includes adding users, SAN, network configuration, installing application related packages, managing services
• Responsible for maintenance of development tools and utilities and to maintain shell, Perl automation Scripts
• Worked with project manager and auditing teams to implement PCI complianceInstalled and configured Virtual I/O Server V1.3.01 with fixpack8.1
• Integrating Weblogic 10.x and Apache 2.x and deploying EAR, WAR files in Weblogic Application servers
• Management and monitoring of various services using Service Management Facility and Service Administration
• Designing Firewall rules for new servers to enable communication with application, Oracle 10g servers
• Working on Volume management, Disk Management, software RAID solutions using VERITAS Volume manager. File system Tuning and growing using VERITAS File System (VxFS), coordinated with SAN Team for storage allocation and Disk Dynamic Multi path

Environment: Red Hat Linux AS/EL 4.0, Sun E10k, E25K, E4500, SunFire V440/880, DMX 3 & DMX4, Siteminder, SonicMQ 7.0, VxFS 4.1, VxVM 4.1, SVM

Confidential

UNIX Administrator

Responsibilities:

• Responsible for supporting Linux servers for production, development and testing
• Installing, Configuring and Maintaining the DHCP, DNS, NFS, NIS, send mail server
• User Account Management, Group Account Management, configuring dumb terminals, adding modems, formatting and partitioning disks, manipulating swap, local and remote printer management, taking and restoring backup, scheduling jobs
• Performance tuning and preventive maintenance. Performed daily backup
• Performed addition of Swap space at run time. Performed installation and configuration of LDAP
• Resolving TCP/IP network access problems for the clients
• Implementing Remote System Monitoring with Sun Microsystems
• Performed administrative tasks such as system start-up/shutdown, backups, Printing, Documentation, User Management, Security, Network management, configuration of dumb terminals
• Troubleshooting backup and restore problems and performed day-to-day trouble shooting for the end users on Linux based servers
• Develop, Maintain, update various scripts for services (start, stop, restart, recycle, cron jobs) UNIX based shell, Perl.
• Configured and maintained NIS, NFS servers on Linux
• Setting up Oracle 8 server in Linux/Unix environment

Environment: Linux (Red Hat Enterprise,Solaris Cent OS), Windows 2000/NT, HP, IBM, Oracle 8, SSH Gate, Cisco routers/switches.