SUMMARY

• Systems Administrator and engineer with around 8+ years of experience administering and automating operations across multiple platforms (UNIX, Linux, Windows).
• Professionally trained in Puppet Enterprise/Puppet Architecture. Expertise in Automation with excellent scripting skills in UNIX shell, Perl and Python.
• Experienced and knowledgeable in Amazon Web Services.
• Managing Linux, VMware and AWS servers/VMs. Well versed with installation, configuration and maintenance of applications in Linux on physical and virtual environments.
• Expertise in installation, administration,patches,upgradation, Configuration, performance tuning and troubleshooting of RedHat Linux 4.x/5.x/6.x, AIX (4.3/5.x/6.x/7) and HP - UX 11.x and Microsoft Windows NT 4.0/2000/2003 OEL 5/6 environments.
• Architected Puppet infrastructure and puppetized more than 4000 servers.
• Developed Splunk infrastructure and related solutions as per automation toolsets.
• Executing daily service delivery of planning, organizing, evaluating, troubleshooting, installing and tuning of multiple large Linux systems in a centralized data center environment.
• Installation and new server build for Redhat Linux & AIX Operating System. Installing AIX in Complete over write, preservation and migration modes.
• Motivated Redhat Linux & AIX disaster recovery expert with 7 years of relevant experience in multi-site environment.
• Expertise in Redhat Linux Capacity and Performance Planning.
• Lead datacenter migration in large midrange environment.
• Experience in installation, configuration, upgrade and administration of Confidential pSeries and Power5/Powerer6/Power7 servers on various levels of AIX operating system environment.
• Installed, configured and maintained DNS systems using BIND, Route53(AWS), PowerDNS
• Capacity planning, batch flow, storage expansion, storage creation and presentation as well as all zoning activities on the Brocade Fiber Channel switches
• Performed TL upgrades in Redhat Linux environment and installed ifixes when required.
• Installed 50+ AIX 6.1 images on virtual clients LPARs using NIM master.
• Daily, weekly backups, running system backup using mksysb, Volume group backups with savevg. Disk and volume management Redhat Linux & AIX LVM. Replacing faulty physical volumes from rootvg or other user defined volume group.
• Configuring Monitoring rules for the server environment. Using NAGIOS V3..
• Managed the efforts of infrastructure, server, and applications recovery plans.
• Expert in Jumpstart, JET, Kick start, NIM, Ignite Installation Methods.
• Involved in running security scripts to implement hardening of Linux and AIX servers to makes servers more secure by fixing the Vulnerabilities.
• Implementing Security procedures for user authentication by using LDAP, Password less login, SUDOERS and implementing password aging polocies.
• Experience in Virtualizing RHEL and AIX environments with VMWARE ESX 3.5, 4.0 and vSphere 4.1 servers on Dell PowerEdge and HP Proliant Hardware.
• Extensive knowledge in Security Procedures using SELinux and implement permissive and enforcing modes along with setting Network security by using network tools like Wireshark.
• Managed application configurations on EC2 using OpsCode Chef.
• Well versed with automation tools like Puppet, Kickstart, Jumpstart, Chef and FAI.
• Experienced in Linux/AIX Installation, Preservation Installation and Complete Overwrite Installation using CDROM and configuring Kickstart/Jumpstart Server
• Implementation and Administration of DHCP, NFS and NIS on Linux and Solaris.
• File system tuning using Veritas File System (VxFS) and Logical Volume Manger (LVM)
• Planned, documented and supported high availability, data replication, business persistent, fail-over, fail-back Solutions using Red Hat cluster in SAN environment.
• Strong in LVM (Storage Methodology), Performance monitoring, Error logging, Diagnostics, and Fine-tuning.
• Expertise in Installing and Managing LDAP, NIS, NFS, DHCP, SAMBA and DNS.
• Backup jobs, housekeeping, database, proprietary jobs using CRON, EMC legato Networker and BMC Control-M troubleshooting daily job problems.
• Setting up databases in AWS using RDS, storage using S3 bucket and configuring instance backups to S3 bucket
• In Depth knowledge and experience with LDOMs,Server Domains and Zones/Containers.
• Designed and implemented scalable, secure cloud architecture based on Amazon Web Services
• Experienced in Amazon EC2 setting up instances, virtual private cloud (VPCs), and security groups.
• Expertise in Migration from one flavor of UNIX to another.
• Implemented and Enhanced the Existing Scripts which are developed in Shell, Perl, and Python.
• Excellent in troubleshooting Linux and AIX servers and perform Maintaining and Patching.
• Experienced working in Data center and had experience on Cloud Computing Environment.
• A good team player with strong communication skills and an inquisitive mind to learn more

TECHNICAL SKILLS

Operating systems: AIX 5.2/5.3/6.1, Solaris 8/9/10/11, RedhatLinux 4.x/5.x/6.x, HP-UX 11.11/21/31 and Windows 2k/2k3/2k8, VMware ESX Server 4.x/5.x

Hardware: DELL PowerEdge 1650,2850,2950,6400. HP DL320,DL360,DL380,DL580, HP rp3440, rp 4440, rp5470 & rp8400, rx3600, rx 6600, Compaq ProLiant DL 385,585 EMC Symmetric DMX, VMAX, Clarion, NetApp FAS 3240 & 6070, Hitachi arrays, Backup Devices, Ethernet Hubs, Routers, Repeaters, Jukebox, Printers Juniper Netscreen Firewall

Server Management: Puppet, Chef, VxVM, Nagios, Awscloudwatch

Programming Languages: C,C++,java, JavaScript, HTML, KSH, CSH, Bash, Phyton and Perl programming

RDBMS: Sybase, Oracle 7.x/8.0/9i, MySQL,SQL, Amazon Web Services (AWS)

Networks: NIS, NFS & DNS and Firewalls

Protocols: TCP/IP, FTP, SSH, SFTP, SCP, SSL, ARP, DHCP, TFTP, RARP, PPP and POP3

Storages: Sun StorageTek Arrays, Hitachi,EMC Clarion, EMC Symmetrix,EMC Connectix

PROFESSIONAL EXPERIENCE

Confidential, Austin, TX

System Admin/Devops Engineer

Responsibilities:

• Installed and configured of hardware and Linux like HP-UX and RHEL 5/6 on x86 servers.
• Build servers, configured, installed tools, installed patches and transitioned servers to production support.
• Experience in support HP Hellion instances running HP-UX and Redhat Linux.
• Experience supporting Redhat Cluster and Oracle RAC environment running Oracle databases in High Availability.
• Involved in automation of Linux using kickstart on Physical and VMWare ESX VM’s.
• Experience creating and managing HP Proliant DL G4, G5, G6 & G7, and C7000 Blade Centers.
• Manage file systems using Software RAID and recover an array, Manage file systems using Logical Volume Management, Resize file systems and protect them with LVM Snapshots.
• Experience in automation using scripts in Perl and also shell (bash and korn).
• Involved in managing Virtual Redhat Linux servers running on VMWare ESX 4/5.
• Wrote design and testing documentation for the implementations of Linux packages.
• Installed Puppet client software on RHEL 6.x servers and established a communication between master and client through SSL certification.
• Migrated Linux servers from physical servers to HP Hellion virtual servers.
• Involved in setting up Linux server with JBoss, Bamboo, stash, Git.
• Experience in using automation Tool like Puppet to automate tasks on multiple Linux servers and also involved in creating modules, manifests, cookbooks in Puppet and Chef using Ruby.
• Improved monitoring with Nagios and custom plugins.
• Responsible for doing code review and configuration build management using Ant, Maven.
• Configure dynamic and static network settings for IPv4 and filter packets, Review file system management concepts, and removable media and configure NFS shares with AutoFS.
• Organized and facilitated sprint planning, daily stand-up meeting, release planning and other scrum related meeting.
• Experience in SAN migrations at Host level on RHEL, HPUX and Solaris servers using Open Migrator, Open replicator and RHEL LVM and Veritas commands.
• Experience supporting single sign on authentication using LDAP on Linux environment.
• Configured Kick-start servers to install Red Hat Linux and VMWare ESX on multiple machines.
• Experience configuring LDAP clients and performing activities like user administration using LDAP.
• Involved in virtualization with VMWare ESX vSphere 4.1 and created VM’s and performed P2V and P2P migrations and involved with Solaris 10 Virtualization using LDoms and Zones.
• Supporting applications like JBoss and Weblogic along with Front-end webservers like Tomcat, Apache.
• Designed and implemented Nagios installation for monitoring of servers.
• Installed patches to latest patch level, applied patch cluster and installed software packages as needed.
• Experience working with Java applications like Weblogic, Websphere and JBoss and performing JVM installations and upgrades in web logic environment.
• Involved in support and upgrade of Puppet master server from 2.x to 3.x version on servers and clients.
• Monitoring the hosts and networks using Iostat, VMstat, MPstat and Other Tools.
• Worked on HPUX migration using native LVM and EMC products like EMC Power path.
• Creating user accounts, user administration, local and global groups on ESX and Red Hat Linux platform.
• Disk mirroring and RAID implementation using VERITAS Volume Manager and Linux Volume Manager.
• Experience working with configuration management tools like puppet.
• Installed VERITAS Volume Manager and Powerpath on Red hat Linux servers.
• Security implementation through ACL, RBAC and TCP Wrappers.
• Installing, configuring, and administering DNS, NFS, NIS, Mail servers, FTP servers RPM servers on Red Hat Linux platforms.
• Resolving regular tickets on Hawk, Syswatch and ping probe Monitoring tools using sitescope.
• Controlling the System Logging services, and examining system Log Files of all system events.
• Responsible for network troubleshooting and planning in a web hosting environment including the configuration of 3-Tier Environment.
• Install and configure SSH to enable secure access to the servers.
• Strong scripting knowledge (Perl and Shell) to perform different administration tasks.
• Experience in Shell scripting (ksh, bash) to automate system administration jobs
• Mentoring junior team members to support production web environment.
• Setting ulimitparameters and handling the job schedulers.
• Performed volume management tasks like mirroring using SVM, Veritas Volume Manager 4.x/5.x and HPUX LVM.
• WorkedonGrub,PXEboot,Kickstart,Packages,Yum,RPMs,LVM,BootfromSAN,filesystemconfiguration.
• Activities include user administration; startup and shutdown scripts; crontabs, file system maintenance, backup scripting and automation using Perl, shell scripting (bash,ksh) for Red Hat Linux

Environment: RedHat 5/6 on X86 servers, VMWARE 3.5 and vSphere 4.x/5.x, EMC PowerPath, Puppet 2.x to 3.x SYMCLI 7.x, SMC 7.x, VMware ESX Server 4.x/5.x, Phyton and Perl programming, JBoss, Bamboo, stash, GitBuild Management Ant, Tortoise SVN.

Confidential, Jersey city, NJ

System Admin/Devops Engineer

Responsibilities:

• Installation, Administration and Maintenance of Red Hat Enterprise, CentOS on VMs and physical Servers
• Prepared, arranged and tested Splunk search strings and operational strings.
• Responsible for Administration, Installation, Upgrading, Migration, Configuration, Troubleshooting, Security, Backup, Disaster Recovery, Performance monitoring and Fine-tuning of UNIX systems on different OS levels.
• Supported several Servers in Dev, QA, Staging and Production environments plus primary support to all kind of issues for Redhat 5.x & 6.x Linux and VMware.
• Installing and upgrading patches and packages on RHEL 5.x, 6.2 and 6.5 servers using RPM, YUM and third party software applications
• Installation, Configuration and Administration of VM's in VMware ESXi 5.0,5.1 and also patch management and troubleshooting of VMware, and ESXi Servers and migration of VMs and data storage, snapshot and templates and clones
• Installation of SSH and Configuration of Key-Based Authenication.
• Developed utilities in perl, including templates and configurations for Nagios, MRTG, and basic system configurations. Wrote custom plugins for Nagios.
• Handled the VMware solutions to support multiple storage connectivity options such as FC-SAN, iSCSI, NFS (NAS) and internal storage.
• Managing and supporting a multi-cloud environment which includes AWS, GCE and Azure
• Building servers by kickstart through PXE and deploying applications.
• Writing/Modifying Manifests and applying them on the nodes using Puppet
• Experience installing Puppet agents and pushing Manifests/Modules to 500+ Puppet clients.
• Implemented continuous deployment system with Jenkins, AWS: Code Deploy.
• Configured Kick-start servers to install Red Hat Linux and VMWare ESX on multiple machines.
• Ldap integration with Vmwarevcenter Single Sign On
• Building/nukeingNetapps and managing the aggregates and volumes on the Netapp Cluster
• Creating/resizing volumes, preforming volume level data copy using ndmpcopy and snap mirror
• Troubleshooting various production related outages.

Environment: RedHat ES3/ES4/ES5, VMWARE 3.5 and vSphere 4.x/5.x, EMC PowerPath, SYMCLI 7.x, SMC 7.xVMware ESX Server 4.x/5.x, Phyton and Perl programming, CRON, EMC legato Networker.

Confidential, Woonsocket RI

Sr Linux Administrator

Responsibilities:

• Provide onsite and remote support for Redhat Linux & AIX Server's.
• Provided24x7 on callserver support for UNIX environment including AIX, Linux, HP-UX, and Sun Solaris.
• Configured HP ProLiant, Dell PowerEdge, R series, Confidential UCS and Confidential p-series 550,570,590,595,690 machines,for production, staging and test environments.
• Administration/installation/upgrade and maintenance of HP ProLiant DL 585 G7 using Redhat Enterprise Linux jumpstart, flash archives and upgrade method.
• Experience with provisioning Linux using Kickstart and Redhat Satellite server.
• Extensively used NFS, NIS, DHCP, FTP, Send mail, and Telnet for Linux.
• Coordinated with database administrators while setting up Oracle 10g/11g on Linux.
• Setting up and administering DNS system in AWS using Route53
• Good understanding of Security,OSI Model, TCP/IP protocol suite (IP, ARP, ICMP, TCP, UDP, RARP, FTP, TFTP)
• Manage relationships between large collections of AWS machine images
• Responsible for designing the loadable path control module for in the multi path configuration.
• Performed migrations of virtual servers from Ubuntu OpenVZ physical servers to AWS EC2
• Installation and configuration ofLPAR'swithAIX 5.3, 6.1 onp5servers.
• Experience in Installation, Configuration and Troubleshooting of Tivoli Storage Manager(TSM).
• Remediating failed backups, Take manual incremental backups of failing server's.
• Upgrading TSM from 5.1.x to 5.3.x.Worked on HMC Configuration and management of HMC Console which included up gradation, micro partitioning.
• Installation and troubleshooting ofIBM DirectorandTivoli Endpoint
• Monitoring the hosts and networks using NAGIOS, Iostat, VMstat, MPstat and Other Tools
• Manage software on system using YUM, and RPM.
• Installing & configuring Oracle Enterprise Linux for Oracle Database Server with RAID Partition..
• Coordinating with SAN team for allocation of LUN's in order to increase filesystem space.
• Configuration and administration of Fibercard Adapter's and handling AIX part of SAN.
• Configuration of VIO server and VIO clients from Hardware Management Console.
• Administration of multiple AIX machines, AIX clusters, and SP nodes from any client platform through WebSM.
• Good LVM skills, usedLVM, created VGs, LVs, and disk mirroring.
• Responsible for Installing Security fixes and APAR's in Servers.
• Installation and configuration ofNIMmaster server and clients.
• Implemented PLM (Partition Load Manager) on AIX 5.3. and 6.1

Environment: RedhatLinux 4.x/5.x/6.x, AIX - 5.3/5.2, SUN Solaris 10/9/8, Win 2003/2000, HP-UX 11.ivSphere 4.1, Confidential p-series 550,570,590,595,690, AWS EC2.

Linux/AIX Administrator

Responsibilities:

• Responsible for installation, troubleshooting and maintenance of 1800 Redhat/SUSE servers and 1000 servers running Solaris 10/11 on x86 and SPARC.
• Designed and managed AIX related operation systems, SAN infrastructure along with the necessary upgrades.
• Provides overall support and maintenance of operating systems and network connectivity for all AIX systems.
• Expertise in establishing and documenting the procedures to ensure data integrity including system fail-over and backup/recovery in AIX operating system.
• Configuration, management, and support for advanced AIX functionality which includes: Power HA, NIM, NPIV, GPFS, WPAR.
• AIX LPAR Virtualization installation and configuration, research, automation, and standards, for systems using HMC/VIOS (vscsi and NPIV). (AIX on large frame P-series: p5, p6, p7).
• Configuring interfaces, new devices installation and configuration. Removing the device and working with ODM entries that are related to devices.
• Maintained availability, increased capacity & performance of production machines by upgrading their hardware (Disks, CPU, memory, I/O board, power cooling unit, mother board etc.) & firmware.
• Involved in implementing Security by implementing IP Tablesm, SSH root login disabling, PAM Authentication, disabling services and ports on Linux and Solaris servers.
• Involved in documenting Security implementing procedures on Linux servers.
• Set up Netsaint (now Nagios) to use escalation and email paging triggers.
• Experience Virtualizing Redhat servers using vSphere 4.1 and managed ESX servers using vCeneter and also worked with ESX Cluster and vMotion.
• Experience working in Cloud infrastructure using Hitachi/EMC SAN and HP Blade Center servers.
• Worked with Migration team, LOB during Pre-migration and Post-migration of security on different Operating systems (servers) for the successful conversion of security, without impacting applications and Business.
• Writing Shell/Perl Scripts for deployment tasks like Installation, Configuration of Core and Layered Products and Peer-review tasks (employed to maintain the standard of quality of servers) for all the New Build Servers.
• Installed and Configured Redhat Linux and Solaris and booting from SAN.
• Worked with Confidential X series, HP DL, BL and Dell Power Edge Model servers.
• Configuring different RAID groups assigning different RAID levels in EMC Storage.
• Supported and managed Confidential pseries servers (P5/P6/P7) using HMC version 6 and 7.
• Migrated different applications like SAP & Databases like Oracle from HPUX to Linux.
• Implemented security methods using security hardening techniques like software patching to minimize the known vulnerabilities, OpenSSH, TectiaSSH, PKZIPc for secure logging and transmission of data and sudosh for auditing.
• Deployed Puppet, Puppet Dashboard, and PuppetDB for configuration management to existing infrastructure.
• Installed and Configured Apache Http/Https server for secure web server communications using TLS/SSL protocol suite.
• Mirroring of root disks using hw Raid Controller on HP & Dell HW.
• Managed 100 + UNIX servers running RHEL, HPUX on Oracle HP and Dell server including blade centers.

Environment: AIX 5.3/5.2, SUN Solaris 10/9/8, Win 2003/2000, HP-UX 11.i, SYMCLI, ECC 5.2, NavisecCLI, Navisphere Manager, Webtools, Brocade, Power Path, vSphere 4.1, TLS/SSL protocol suite, Hitachi/EMC SANHP Blade Center servers.

Confidential

Sr Linux System Administrator

Responsibilities:

• Administered a heterogeneous environment comprising Red Hat Linux and Solaris with emphasis. Administration involved installation, configuration, evaluation, implementation and support of strategic Business systems in a heterogeneous environment.
• Expert in Kickstart and Jumpstart for Linux and Solaris Installation Methods
• Worked on SAN & NAS devices like EMC Clarion’s, and NAS Devices like NetApp filers.
• Worked on NetApp filers like FAS 3240 & 6070 running DATA ONTAP 7.x.
• Implemented FTP server with Ncftp and ssh2 (Tectia SSH) keys for file secure transfer file transfers to/from the clients, which is Internet-facing. Security was implemented with HIPAA compliance.
• Involved in applying Patches, Installing patch bundles on Solaris, AIX and Red hat Linux.
• Configured VMware and installed several Linux and Windows Operating Systems according to the client needs. Also involved in maintenance and Troubleshooting of VMware
• Network Monitoring Using Nagios tool
• Upgraded Red Hat Linux servers from 5.2 to 5.4.
• Involved In Migration from to Red Hat Linux.
• Deployed patches and upgraded RedHat Linux servers and SUN servers to their latest versions.
• System performance tuning, User administration and security.
• Scheduling Backups, Monitoring & taking failover test of Veritas Clustered servers
• Installed application connectivity software to enable Confidential print services. Configured and administered firewall rules to effectively monitor system files, port security, and network traffic activity coming through the firewall.
• Installed and configured Apache ANT for automated build processing using RPM
• Experience in Installation and configuration of JBOSS on Red Hat Linux servers.
• Installed and configured Sudo for users to access the root privileges.
• Experienced in Troubleshooting critical hardware and software issues and other day-to-day user trouble tickets
• Experience in Servers consolidation and virtualization using UML Linux, XEN and VMware virtual infrastructure, VMware ESX 2.x, VMware Vcenter.
• Developed automated processes that run daily to check disk usage and perform cleanup of file systems on UNIX environments using shell scripting and CRON.

Confidential

Linux/Solaris Administrator

Responsibilities:

• Installation, Configuration, Upgradation and administration of Windows, Sun Solaris, RedHat Linux and Aix.
• Linux and Solaris installation, Administration & Maintenance.
• User account management, managing passwords setting up quotas and support.
• Worked on Linux Kick-start OS integration, DDNS, DHCP, SMTP, Samba, NFS, FTP, SSH, LDAP integration.
• Network traffic control, IPSec, Quos, VLAN, Proxy, Radius integration on Confidential Hardware via Red Hat Linux Software.
• Responsible for configuring and managing Squid server in Linux and Windows.
• Configuration and Administration of NIS environment.
• Involved in Installing and configuring of NFS
• Worked with Net filter IPtables for host-based security firewall rules, Pre-Routing and Post-routing rules.
• Installation and Configuration of Linux and Solaris operating systems on large distributed environment.
• Implemented remote installation on servers using RedHat Linux Kickstart and jumpstart/JET Servers.
• Installed and configured RedHat softwares and 3rd Party tools using RPM’s and YUM on RedHat servers.
• Implemented strong password policies using pam configuration files and pam tally modules to prevent brute-force password attacks.
• Worked with Linux Security extensions like SElinux in both enforcing and permissive modes to guard misconfigured/compromised services.
• Involved in creating volumes on raid groups and aggregates and sharing to Windows and UNIX servers using CIFS & NFS.
• Experience working Snap mirror & Snapvaults for backup and replication purposes on NetApp devices.
• Package and patch management on Linux servers.
• Kernel tuning, Writing Shell scripts for system maintenance and file management.
• Worked on Logical volume manager to create file systems as per user and database requirements.