SUMMARY:

• 8+ years of experience with System Administration/ Engineering using RHEL (4, 5, 6) Sun Solaris (7/8/9/ 10), AIX (5.1/5.3/6.1), Suse Linux ES 9, 10,VMware ESX 3.1, VMware ESXi 3.2/4.0, VSphere 4 and windows 2003/2008.
• Hands on Experience in Solaris Jumpstart, Redhat Enterprise Linux and Kickstart installations.
• Extensively worked on Sun, HP, Dell Hardware - x2200, x4100, x4200, x4250, T2000, T5440, M3000, M5000, v480, E4800, E4900, E6800, E6900, E15K, 25K, DL 380, 585, R805, R905 models respectively.
• Experience in using console access mediums: XSCF, ILO, ILOM, ALOM and concentrators like lantronix.
• Experience in configuration of LUNs on Sun StorEdge arrays and knowledge of SAN infrastructure.
• Working experience with cloud infrastructure of AWS (Amazon Web Services) and computing AMI virtual machines on Elastic Compute Cloud (EC2).
• Regularlyupdated all software and operating systems on the instances running in EC2, to eliminate security loopholes.
• Experience in Installation and configuration of VMware ESX server 3.5 on Dell and HP Proliant servers and configured VMs for Solaris x86 and Linux.
• Working knowledge of various SMTP Servers - Sendmail 8.12.11, 8.14.2, Postfix 2.x, and Exchange 2000/2003
• Expert in UNIX shell scripting - ksh, bash, sh and knowledge of PERL scripting.
• Experience with patch and package administration including building of packages and RPMs.
• Experience in diagnosing and resolving TCP/IP connection problems
• Experience in performance tuning, trouble shooting and resolving network issues, related to the servers.
• Experience with Solaris virtual technologies Zones andLDoms.
• Experience in administering Webserver Apache and Application server JBoss.
• Experience with switches and routers from various vendors like Cisco, Dell, and HP.
• Experience in making Disaster Recovery and Disaster Contingency Plans; DR with SunGard, SRDF devices.
• Excellent written and verbal communication skills.
• Ability to operate effectively on a 24x7 basis in crisis situations.
• Effective team player with excellent logical and analytical abilities.

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)

OS: Solaris 10/9/8, HP-UX (11.00, 11.11, 11.23, 11.31), IBM AIX (5.1, 5.3), Red Hat Linux (RHEL 3/4/5), Windows NT /2003/vista Naming Services DNS, NIS, and NIS+

Backup Management: VeritasNetbackup 4.x/5.x/6.x, Ufsdump, ufsrestore, tar, dd, cpio

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

ThirdParty Software: VERITAS Volume Manager, LVM, LDAP, SSH, Cluster Veritas Cluster Server (VCS), Sun Cluster, HP Service Guard, AIX HACMP

RDBMS: Oracle, MS SQL Server

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

WORK EXPERIENCE:

Confidential, Arlington, VA

Linux/Devops Admin

Responsibilities:

• Build and configure a virtual data center in the Amazon Web Services cloud to support Enterprise Data Warehouse hosting including Virtual Private Cloud (VPC), Public and Private Subnets, Security Groups, Route Tables, Elastic Load Balancer, CloudWatch, CloudTrail, and Security Management VPC.
• Build application and database servers using AWS EC2 and create AMIs as well as use RDS for Oracle DB.
• Install new / rebuild existing servers and configure hardware, peripherals, services, settings, directories, storage, etc. in accordance with standards and project/operational requirements.
• Install, configure and administer log analyzer tool CloudWatch.
• Worked with ANT, maven and - JIRA.
• Experiencing with Nagios, splunk and snmp monitoring.
• Create, change, and delete user accounts per request.
• Perform daily system monitoring, verifying the integrity and availability of all hardware, server resources, systems and key processes, reviewing system and application logs, and verifying completion of scheduled jobs such as backups.
• Migrate on premise database to AWS Cloud and also designed, built, and deployed a multitude applications utilizing the AWS stack (Including EC2, R53, S3, RDS, SNS, and IAM), by focusing on high-availability, fault tolerance, and auto-scaling.
• Configure EC2 Instances, VPC, Route 53, ELB, Subnets, etc.
• Configure and administer Apache and Application layers
• Configure HTTP caching properties for static caching.
• Automate site configuration using Puppet
• Worked with puppet /Chef for configuration management .
• Worked on version control using Github.
• Worked o automating builds using Jenkins.
• Worked on migrating Solaris 10/ AIX 6.1 to redhat 6.
• Worked on creating new LPARS on AIX IBM frame
• Worked on ruby and python scripting.
• Automate infrastructure in AWS using amazon web services.
• Installing and configuring Tomcat and JBOSS.
• Deploy puppet to completely provision and manage AWS EC2 instances, volumes, DNS, and S3.
• Performed installation, configuration and tuning of Redhat, CentOS, Solaris servers and AIX.
• Installed and configured Windows 2003/2008 servers and splunk.
• Implemented administration, maintenance, upgrading and monitoring of IT System and networks.
• Installed PXE servers, KickStart configurations for automatic Linux Installation.
• Performed Installation, configuration and administration of Weblogic application servers and Oracle System Bus(OSB).
• Involved in RPM package building according to the requirement using fpm and deploying the package using puppet enterprises to puppet agent.
• Worked on creating queues for new data center and reporting on console for finalization.
• Worked on Amazon web services to create AWS instances with S3 storage and EBS storage.
• Performed Installation, configuration and Administration of VERITAS Volume Manager (VCS).
• Configured and deployed of DynaTrace Monitoring system for managing all the Linux warehouse systems.
• Worked on Siteminder WAM UI on configuration of policy and LDAP.
• Implemented migration from Redhat to CentOS environment.
• Implemented virtualization using VMware in Redhat and CentOS on HP - DL585 and IBM-z/VM series.
• Provided support for break/fix incidents.
• Involved in corporate level auditing compliances like system security, network security and installation of recommended patches.
• Performed Data Center migration from AIX to Linux and 5.x to 6.4 Linux upgrade.
• Involved in troubleshooting any reported problems, analyzing heap/thread dumps and network packets taking tcpdump, snoop using wireshark.
• Performed Migration of HACMP 4.3.1/4.5 to HACMP 5.1 using Node-by-Node migration without changing the cluster setup.
• Involved in Veritas NetBackup LOB Media server conversion to SAN Clients, installation, configuration and administration of NetBackup and TSM (Tivoli Storage Manager) for backups/recovery.
• Implemented day-to-day tasks in Red Hat Linux and CentOS that include upgrading kernel, HBA driver, configuring SAN Disks, Multipathing, NAS Mount and Unmounts.
• Worked on Tivoli Workload Scheduler for batch jobs scheduling, fixed or cleared jobs that encountered error.
• Managed batch jobs processes using Korn, shell and PERL scripts (Cron and Tivoli workload scheduler).
• Deployed applications on Jboss (4.2.1,4.3,5.1) servers. Worked on creating and scheduling jobs using autosys.
• Used UNIX/Linux shell scripting to automate system administration tasks, system backup/restore management and user account management.
• Provided support by 24x7 shift rotation basis by on calls.

Environment: s: Red Hat Enterprise Linux 4.x, 5.x, 6.x,CentOS 5,x, 6.x, Sun Solaris 8, 9, 10, VERITAS Volume Manager, Oracle 11G, Samba, Oracle RAC/ASM,EMC Power path, DELL PowerEdge 6650, LDOMs, Jumpstart, KickStart, Veritas Net Backup, HP-DL585, HP BL460, BL685, Sun X3-2, X3-4, Sun M8000, M5000, M4000, M3000M, Sun Fire T1000, T2000, HP DL 380, 580, Veritas Cluster 5.0.

Confidential, Franklin Lakes, NJ

Devops/ Unix Administrator

Responsibilities:

• Worked on migrating Solaris 10/ AIX 6.1 to redhat 6.
• Worked on creating new LPARS on AIX IBM frame
• Worked on Creating new EC2 instances on AWS ( Amazon web services )
• Worked on creating puppet manifests and modules .
• Worked on creating build jobs using Jenkins.
• Worked on Git as a source code repo for version control.
• Provided Administrative support for 450 odd Linux/Solaris/AIX servers running Weblogic Suite applications, variety of business applications, and Ab-initio ETL.
• Worked on windows 2003 and 2008 servers and installed OS on them.
• Worked on creating Chef recepies .
• Worked on configuring CFengine and Jenkins.
• Performed Installation, configuration of RHEL 5, Solaris and AIX operating systems.
• Performed live as well as manual OS upgrade from red hat 3, 4 to red hat 5 and 6.
• Actively Involved in Building and configuring of red hat Linux and Solaris 9/10 servers remotely using Jump Start /Kick Start Servers.
• Handled Content Management systems.
• Analyzed the hardware and software requirements of Active Directory.
• Installed, configured, and provide troubleshooting for Server 2003.
• Migrated Windows Server 2003 from test environment to the production environment.
• Implemented and managed IP Addressing; configured TCP/IP addressing on a server.
• Created the Forest Root domain, and a Child domain in a production environment.
• Installed and configured an Active Directory Domain Controller
• Worked with Ruby scripting, Rails, Adobe Cq5 .
• Also worked with Angular JS to create java framework and java code for Jenkins deployment and node.js
• Maintained a secure hosting environment with latest certified Prism-CMS software, security patches, and software updates and upgrades to database, and application tiers.
• Troubleshooting OS / Hardware related issues and monitor server health on a day-to-day basis. Maintained maximum uptime and high performance for Enterprise Production, Development, and QA environment servers.
• Worked on application server like Jboss and web server like Apache and Tomcat.
• Monitored the systems CPU, memory, IDE/SCSI disks, disk controllers, RAID, RAID controllers, file systems, and network parameters using the tools NAGIOS system monitoring tool and BMC performance management tools.
• Allocate/manage disk quotas on Development servers for applications running on Linux.
• Installed, configured, and maintained TCP/IP based services like NFS, NIS, NIS+, DNS, LDAP, Print servers, and SMPT. Also performed troubleshooting issues on these services.
• Configured auto mounting setup on NFS clients.
• Install/troubleshoot AUTOSYS to schedule application jobs.
• Performed installation, configuring, tuning, and troubleshooting of Apache web server, Tomcat and WebSphere application servers.
• Performed file system management and disk management using Veritas Volume Manager.
• Worked with SAN team for Zoning of storage area for various applications. Configured servers for high availability through Dynamic MultiPathing using Veritas DMP.
• Installed and configured Veritas NetBackup on client servers and performed periodical backups of server data files.
• Actively involved in planning, configuring and administering High Availability and High Performance clusters using Veritas cluster server and Sun HPC software.
• Providing Level 1 and Level 2 Support on various production systems.
• Scheduling jobs through cron - frequent modification to crontab.
• Fixing the failed and missed backups using (TSM).
• Develop scripts to perform weekend checkouts after reboots occurring every weekend.
• Prioritize and resolve critical issues and coordinate the escalated activities through ACTT Ticketing system.
• Generated detailed documents and reports on issues and solutions for future reference.
• Working with SOX Team in auditing of critical production functions and preparation of audit documents as per the audit specifications specified by Sarbanes-Oxley legislation.

Environment: Red hat Linux 3,4 and 5 ES 4.0/5.0,Hp Unix 5.1, Sun Solaris 9/10, AIX 5.1/5.3 Veritas Volume Manager, SAN, Samba, NFS, VMware ESX, Apache, Tomcat and Joboss Veritas Volume Manager 4.0, Veritas Cluster 4.x, Tivoli Storage management and Websphere servers, and SAN storage.

Confidential, Columbia, MD

Unix Administrator/Network Admin

Responsibilities:

• Worked as Unix Administrator in IT infrastructure environment providing server administration, application administration and automation solutions to support business objectives.
• Responsible for Installation, Configuration, Support and Troubleshooting existing systems in AIX 4.3.3 / 4.5/5.1 L, Red Hat Enterprise Linux operating environment
• Responsible for the operation, maintenance and integrity of a distributed, networked AIX based environment.
• Provided 24X7 on call production support.
• Worked on creating new LPAR’s on IBM p series frame.
• Worked on NPIV setup on P series frame.
• Worked on installing packages on AIX 6.1
• Worked on performance troubleshooting on AIX systems.
• Instituted centrally managed Linux configurations for application deployments, disaster recovery.
• Successfully tested and documented the alternate disk install procedure to clone O/S
• Upgrade Maintenance level in AIX.
• Installed and configured Virtual I/O Server V1.3.01 with fixpack8.1
• Performed installation, periodic maintenance updates and applied APAR fixes.
• Configured volume groups and logical volumes, extended logical volumes for file system growth needs using Logical Volume Manager (LVM) commands.
• Maintained availability, increased capacity & performance of production machines by upgrading their hardware (disks, CPU, memory, Io board, power cooling unit, mother board etc) & firmware.
• Maintained system security protecting the data on the system by modifying the file and directory permission. Analyzed system performance, Reallocated of kernel resources.
• Performed process Autosys, scheduling of processes using CRON jobs.
• Installed and configured Oracle 8i in Solaris OS. Worked with DBA team in tuning kernel parameters for database setup and performance.
• Worked in the project of configuring NIS Servers (Master and Slave) and NIS clients and maintained system and custom configuration files in NIS maps.
• Maintained intranet DNS environment by configuring Primary and Secondary Domain Name Servers and DNS clients.
• Reconfigured IBM Total Storage SSA Raid arrays ( /O20), periodically updated microcodes for array components, performed problem determination and advanced diagnostic procedures using diag and SSA service aids.

Environment: Solaris 8/9/10, Red Hat Linux, SUSE, Sar, Vmstat,weblogic,jboss,Veritas Foundation Suite, Veritas Cluster, Veritas Net Backup, Jumpstart, kickstart, ESM and HIDS, korn and perlRemedy.

Systems Administrator

Confidential

Responsibilities:

• User account management and support.
• Jumpstart &Kick - start OS integration, DDNS, DHCP, SMTP, Samba, NFS, FTP, SSH, LDAP integration.
• Network traffic control, IPSec, Quos, VLAN, Proxy, Radius integration on Cisco Hardware via Red Hat.
• Responsible for configuring and managing Squid server in Linux.
• Configuration and Administration of NIS environment.
• Managing file systems and disk management using Solstice Disksuite.
• Involved in Installing and configuring of NFS.
• Worked on Solaris volume manager to create file systems as per user and database requirements.
• Trouble shooting the system and end user issues.
• Responsible for configuring real time backup of web servers.
• Log file was managed for troubleshooting and probable errors.
• Responsible for reviewing all open tickets, resolve and close any existing tickets.
• Document solutions for any issues that have not been discovered previously.