SUMMARY

• Over 9+ years of experience as System Admin/Devops/Cloud incorporating implementation, administration and Application - product support with expertise in Solaris 8/9/10, Linux (RHEL 4/5/6/7), Windows (NT/2000/2003).
• Experienced in installation, configuration, usage and management on AWS (Amazon Web Services), Jenkins and GIT for application servers.
• Experienced of Puppet 3.x, Chef, CFEngine and TPM for datacenter automation; installation and configuration of management tool.
• Experienced in chef cookbook development, powershell scripting and puppet manifest and module.
• Experienced with CI (ContinuousIntegration) and CD (ContinuousDeployment) methodologies with Jenkins build tools.
• Install, Upgrade, Patch, Configure, and performance tuning on UNIX and system software & hardware.
• Hands on experience in systems setup, configuration, upgrade, maintenance, performance monitoring and troubleshooting on different UNIX platforms like Sun Solaris, Linux, HP-UX, IBM-AIX and Windows system software and hardware as well as networking.
• Experience in Monitoring teams to identify and troubleshoot issues on servers using tools like Nagios, splunk and net-snmp.
• Worked with openstack and rackspace.
• Scheduling various cron jobs for backups, database, proprietory jobs using CRON and BMC Control-M and troubleshooting daily job problems.
• Installing, upgrading and configuring SUN Solaris Using Jumpstart Servers, Red hat Using Kickstart Server, AIX using NIM, Ignite using HP-UX and Interactive Installation.
• Experience in Shell scripting (bash, ksh) to automate system administration jobs.
• Experience in implementing and configuring of Volume Management by using Veritas Volume Manager (VxVM), Solaris Volume Manager (SVM) using mirroring the root volume group, and Logical Volume Manager (LVM) with various RAIDS in LINUX.
• Expertise in implementation and maintenance of Apache SMTP, DHCP, NFS, NIS, NIS+, LDAP, DNS, SAMBA, SQUID, Postfix, Sendmail, FTP, Remote Access, Security Management and Security trouble shooting skills.
• Experience to configure Red Hat Network Satellite Server for automated installation of Linux boxes and also to create image of Linux system with automation of Linux installs.
• Expertise in RAID Configuration, Veritas Cluster Server, Veritas Volume manager, Logical Volume Manager and Veritas Net Backup.
• Planned, documented and supported high availability, data replication, fail-over and fall-back Solutions using Veritas Cluster Server 5.0, 5.1 in SAN environment.
• Efficiently implemented network file sharing by configuring NFS to share files and resources across the network.
• Worked on VMware, ESX server and P2V migration through plate spin servers.
• Creating and maintaining user accounts, profiles, security, rights, disk space and process monitoring.
• Good experience in reviewing system logs files for errors, settings up Cron jobs for backups and monitoring process.
• Experience in Advanced TCP/IP programming & Serial Port Programming in Unix/Solaris environment.
• Conduct and oversee configuration, testing, troubleshooting, and maintenance of routers, hubs, switches, cabling, and other LAN equipment.
• Resolving system errors and crashes, huge file sizes, file system full errors and Installing network Printers and rectifying the Printer problems over the network.
• Experience in planning and implementing Migrations on Solaris and Linux servers.
• Manage the spare part inventory, created and resolved trouble tickets, and scheduled multiple hardware repairs and also dealt with service calls.
• Excellent skills in analyzing, designing, implementing and system integration.
• Experienced in installation, configuration, management, upgrading, troubleshooting and support of WebSphere, JBOSS, Tomcat, Apache Web server and BEA WebLogic application server on Red Hat Linux systems w/ Oracle 10G RAC with Cluster Ready Services (CRS) and Sybase 11.x, 12.x database, LDAP and mail server.
• Ability to assess a situation, identify problems and devise corrective action.
• Effective communication skills backed with excellent technical aptitude and strong ability to interact clients efficiently.
• Experience in documenting maintenance activities and changes in the network architecture.
• Worked on Framework 7, BuildFire, jquery mobile application development tools.
• Implemented Code and tested in IOS platform and Android platform
• Worked on AWS Mobile HUB, Engaged, Developed, TESTED and DEPLOYED applications using AWS Mobile HUB.
• Worked in testing mobile application development tools using Appium, Calabash and Xamarin.

TECHNICAL SKILLS

Operating Systems: RHEL (5.x, 6.x, 7x), SUSE Linux (9,10,11), Sun Solaris (9,10,11), FreeBSD (7.x, 8.x, 9.x), CentOS 5,6, OEL 5/6, OSX, AIX, Windows 2003, 2008, VMware ESX (3.5,4.0)

DevOps Tools: AWS, Puppet/MCollective, Chef, Nagios, Jenkins, Maven, Ant, MySQL, JBoss, Tomcat, Apache webserver, Git/GitHub, SVN repo

Hardware: Sunfire (V100, V120, V215, V240, V440, V480, V490, V880, X2100, X2250, X2270, X4100, X4170, X4270, X4450, X4470), Sun Enterprise (250, 450, 220R, 420R), SPARC Enterpise (T2000, T5120, T5140, M3000, M5000, M8000), Sun Ultra 60, HP Proliant (BL460, BL 685, DL380, DL385 DL580), IBM RS/6000, pSeries (520, 550, 570, 575, 590, 595, 650, 630,670, M80, S80, H70 and H80), T4-2, Backup Devices, Dell Power Edge (840, 1650, 1850, 1900, 2850, 2900, 6400, 6950, T100, T105, R200, R300), IBM WSS.

Networking: TCP/IP, NIS, NIS+NFS, DNS, DHCP, WAN, SMTP, LAN, FTP/TFTP, POP3, TELNET, Firewalls, BIG IP 10.0, Snoop, Tcpdump, Wireshark.

Volume Management: Veritas Volume Manager (VxVM) 4x, 5.x, 6.0, Solaris Volume Manager (SVM), Logical Volume Manager (LVM)

Backup Solutions: VeritasNetBackup (4.5, 5.0, 6.5), Tivoli Storage Manager, NetApp

High Availability: Veritas Cluster Server 4.x, 5.x

File Systems: UFS, VxFS, ReFS, Ext, Ext2, ext3, ext4, ZFS, CFS

Security and Monitoring: Tivoli Endpoint Manager, Bastille, Nagios, Iss System Scanner, HP Sitescope, BMC Patrol, Linux Iptables, Solaris Ipfilter, Symantec Enterprise Security Monitoring Tool, Teamquest

Database Servers: Oracle 7.x, 8.x, 9i, 10g RAC, MySQL 7.0, 6.5

Web/Application Servers: WebLogic 8.x, 9.0, 10, Websphere 5.x, 6.x, JBoss 4.x, 5x, Netscape/iPlanet Server, Apache Server 1.3.x, 2.2.x, Apache Tomcat 5.x, 6.x, 7.x

Programming Languages: Bash and Korn Shell scripting, Perl, Ruby, Python, C, C++, R,Matlab, core JAVA

Virtualization: VMware, VCenter, KVM, Xen, Hyper-v, Virtual box,Solaris zones/containers, LDOM.

PROFESSIONAL EXPERIENCE

Confidential, NASHUA, NH

SYSTEM ADMINISTRATOR

Responsibilities:

• Developed WebLogic servers and Managed them working in real time production servers.
• Building of data centers and database zones of Oracle cloud.
• Solving the PaaS issues of racks and clusters of data centers of Oracle cloud.
• Software firewall installation in WebLogic servers and Data guard installation in databases.
• Staging and Patching the upgraded version in WebLogic production data zones.
• Scripting the patch files using shell scripting and python scripting.
• Data transfer from data center to Cloud.
• Solving customer issues like VM creation, Cluster provision, DB creation etc.
• Worked as GIT admin and I used to give permissions to users, code merges etc.
• Solving customer tickets using ServiceNow and Jira.
• Used to 24*7 on call support for customers and solved many tickets.
• Worked on all updated versions of Oracle cloud.

Confidential, BOSTON, MA

AWS CLOUD / DevOps Engineer

Responsibilities:

• Delivered Solutions to improve Cloud architecture, deployment for AWS
• Private and Public Cloud.
• Managed multiple AWS accounts with multiple VPC's for both production and non-prod where primary objectives included automation, build out, integration and cost control.
• Automated the release pipeline to achieve zero touch deployments using
• DevOps Tools: Git, Chef, Docker, Jenkins, Puppet, Ansible and Nagios to automate multiple steps in SDLC.
• Coordinate/assist developers with establishing and applying appropriate branching, labeling/naming conventions using GitHub source control.
• Used Maven dependency management system to deploy snapshot and release artifacts to Docker Hub to share artifacts across projects and environments.
• Configured and maintained Jenkins to implement the CI process and integrated the tool with Maven to schedule the builds.
• Used Puppet to automate Configuration management & Applications.
• Used Puppet to manage Web Applications, Config Files, Data Base,
• Commands, Users Mount Points, and Packages.
• Worked on User administration setup, maintaining account, monitoring system performance using Nagios.
• Managing Amazon Web Services (AWS) infrastructure with automation and configuration management tools such as Ansible, Puppet and custom -build.
• Involved in designing and developing Amazon EC2, Amazon S3, Amazon
• RDS, Amazon Elastic Load Balancing, Amazon SQS, and other services of the AW S infrastructure.
• Designed AW S Cloud Formation templates to create custom sized VPC, subnets, NAT to ensure successful deployment of Web applications and database templates.
• Designed roles and groups for users and resources using AWS Ide ntity
• Access Management (IAM).
• Designed EC2 instance architecture to meet high availability application architecture and security parameters.
• Provided highly durable and available data by using S3 data store, versioning, lifecycle policies, and create AMIs for mission critical production servers for backup. Check server resiliency by performing stress test on the machines.
• Install & configure Apache Web server, Tomcat, Weblogic Application servers to meet the business user’s needs and requirements.
• Worked with RDBMS (MySQL), NoSQL (MongoDB), Django, Apache httpd.
• Installed, configured and supported Jboss app server 4.x.
• Worked on installing, configuring and deploying Openstack solutions.
• Worked on keystone, neutron on openstack, nova.
• Worked on troubleshooting issues with openstack.
• Experience with configuring and working on docker.
• Startup and shutdown scripts, crontabs, file system maintenance and backup scripting and automation using shell scripting (BASH, KSH) and Perl.
• Worked on package and patching management and debugging in all flavors.
• Expertise in system and network monitoring tools Nagios and eHealth.
• Strong experience in Creation and managing user accounts, group, password, security, rights, disk space and process monitoring in Solaris and Redhat Linux.
• Extensive experience in IPMP (IP multipathing) and Boot process in Solaris and Bonding in Linux.
• Experienced in VMware server, Vmotion, vSphere, VMware Workstation, Virtual Box and Xen. Installed and monitored Virtual environments with ESX/ESXi servers and VirtualCenter2.X.
• Experienced on Maintaining & troubleshooting SAN and Fiber Channel Card related on LINUX and UNIX Operating systems.
• Worked on AIX to redhat migration.
• Worked on nagios Dashboard with creating custom alerts and plugins with Nagios.
• Worked on creating plugins to monitor application filesystems.
• Worked on puppet to create manifests and Modules to automate deployments and install rpm’s.
• Worked on AWS Code deploy, AWS lambda, AWS RDS
• Worked on migrating Vmware to EC2 instances
• Worked on AWS VPC, AMI and IAM roles.
• Worked on installing, configuring and deploying Openstack solutions.
• Worked on keystone, neutron on openstack, nova.
• Worked on troubleshooting issues with openstack.
• Hands on experience in Installation/Administration of TCP/IP, NIS/NIS+, NFS, DNS, NTP, Auto mounts, Send mail and Print servers as per the client’s requirement.
• Experienced working with servers connected to SAN & NAS environments.
• Experienced in virtualization on Redhat, Solaris with x86 architecture and also using Zones, Containers, Domains and LDom’s on sun SParcs.
• Worked on Ruby and Python scripting.
• Involved with the Customer care and Deployment teams in trouble shooting and fixing day-to-day problems of the applications in production on 24/7 schedule.
• Developed a PaaS and SaaS for our staging, production environments.
• Developed cookbooks to automate most of the complex msi installers and executable installers.
• Wrote Chef Cookbooks to bring up Jenkins continuous integration server (fork of Oracle Hudson). Leveraged the community Jenkins cookbook and applied customizations.
• Created Jenkins Workflows for pre deployment process (DB execution, Environment configuration changes etc.) on both QA and preproduction Environments
• Worked with GIT and Subversion to manage source code
• Created 2 Git repositories in Atlassian Stash named bby-jenkins (our cookbook), omnibus (our deploy gem RPM builder). Worked with Deploy gem Git repo in Stash.
• Worked on using a Git branching strategy that included develops branches, feature branches, staging branches and master. Pull requests and code reviews were performed.
• Built a VPC, established the site-to-site VPN connection between Data Center & AWS.
• Automated the local dev environment using Vagrant/chef-solo.
• Automated the cloud deployments using chef, python (boto & fabric) and AWS Cloud Formation Templates.
• Focused on automation and continuous integration. Automated local development environment using chef
• Used vCloud Automation center for triggering new build.
• Collaborated with development team to troubleshot and resolve issues.
• Documented project's softwarereleasemanagement procedures with input decisions.
• Automation of daily tasks using Shell and Perl scripts.
• Deployed the static content to apache web servers and applications to Tomcat Application server.
• Used JIRA as a Change Management/ Work Management/ SCRUM Agile Tool.
• Build, configured and support Application team environments.
• Experience with web sphere deployment
• Experience with tools like Maven, Ant, Cruise control, Bamboo.
• Established processes and tools to maintain code base integrity, including check-in validation rules and branch/merge processes.
• Spearheaded unit testing of developer code; collaborated effectively with local / offshore teams and users to ensure code met client requirements and achieved targets for application functionality, stability, and availability.
• Worked on the development ofTerraformintegrations, distributed systems, and infrastructure automation tooling in AWS.
• Worked on Azure Cloud, On-Premises Database, Synchronization (Data Sync), SQL Server Stretch Database, SQL Server Sharing, Elastic Database, Geo-Replication, Distributed Transactions, Azure Automation.

Environment: Jenkins, Python, Chef, JIRA, JUnit, JMock, Maven, Artifactory, Git, Ubuntu, CentOS, Open VPN, Twilio, LogMeIn, Azure, AWS ELB, AWS SQS, AWS S3, AWS Cloud Formation Templates, AWS RDS, AWS Cloud Watch, Ruby, Chef-solo, S3FS.

Confidential, Covington, KY

AWS / Devops Administrator

Responsibilities:

• Designed the overall SCM, CI and Release Management process and workflows
• Implemented branching and strategies and automated release branching process
• Automated the deployments using scripts which execute the automated CI and release management process
• Created a reusable deploy distribution for the system which can be ported to multiple environments without having the need to run separate builds.
• Implemented all the build and deployment scripts which execute the automated CI and release management process
• Handled Software Configuration management for all the environments before production.
• Trained testing team members about software architecture and troubleshooting post deployment issues.
• Manage configuration of Web App and Deploy to AWS cloud server through Chef
• Tested various in-house windows/linux based installers.
• Automate and configure all basic setting of server including DNS setting, yum configuration, mount disk space and make server to behave as chef-client using Cookbooks on various Platform.
• Worked on monitoring tools - Nagios, splunk.
• Worked on configuring Alerting mechanisms with Nagios, error logging, performance monitoring .
• Worked with Linux performance tuning to add tuning parameters to the kernel and optimize the kernel.
• Automate all the tool and Product and Integrate together required for company specific product through Cookbooks
• Documentation for every release and installation walk through.
• Setup monitoring and alerting mechanisms for AWS and private datacenter infrastructure.
• Transitioned Infrastructure from private data center to Cloud (AWS)
• Worked with various services of AWS: EC2, Elastic Beanstalk, ELB, Route53, S3, CloudFront, SNS, RDS, IAM, CloudWatch, and CloudFormation.
• Worked in atmosphere of cross-functional team within the organization’s Agile project life-cycle.
• Worked with architects, developers, QA and cloud development team to implement cloud applications, systems, and automated processes.
• Configured the IT infrastructure as code writing manifests, classes, and modules in Puppet.
• Configured resources such as packages, services, files, directories, exec, notify, users, groups, cron jobs, etc. using Puppet.
• Wrote Python and Bash scripts for system administration and automation, such as automate the regular tasks like removing core files, taking backups of important files, file transfers among servers, etc.
• Used Jenkins as continuous integration tool: creating new jobs, managing required plugins, configuring the jobs selecting required source code management tool, build trigger, build system and post build actions, scheduled automatic builds, notifying the build reports, etc.
• Used Git as source code management tool: creating local repo, cloning the repo, adding, committing, pushing the changes in the local repo, saving changes for later (Stash), recovering files, branching, creating tags, viewing logs, etc.
• Used Maven (POM.xml) and Ant scripts (build.xml) as build frameworks/scripts.
• Used Nagios as IT infrastructure monitoring tool: monitoring host resources such as processor load, disk usage, system logs; monitoring applications, services, and network protocols.
• Installed and configured Apache Webserver, WebLogic Application Server, and Oracle databases.
• Deployed web and enterprise applications (war, ear) on WebLogic Application Servers: the deployment environment included Windows, Linux/Solaris, Apache, WebLogic, Java, and Oracle.
• Performed server updates, patching, upgrades and package installations.
• Configured startup run scripts to run the services.
• Performed NetBackup and Recovery, maintained regular backups using tar, ufsdump, ufsrestore, snapshot, etc.
• Worked with VxVM, ZFS, SVM, LVM disk management utilities in Linux and Solaris.
• Created and configured global and non-global zones in Solaris.
• Worked on various storage technologies; FC SAN, iSCSI SAN, and NAS storage.
• Configured servers to provide networking services, including HTTP/HTTPS, File Transfer Protocol (FTP), network file system (NFS), and server message block (SMB), Simple Mail Transfer Protocol (SMTP), secure shell (SSH) and Network Time Protocol (NTP).
• Involved in troubleshooting issues related to applications, and systems.
• Worked on day to day administration tasks and resolve tickets using ServiceNow.
• Documented application configuration details in Solaris, and RHEL environment.
• 24x7 on call support.

Environment: Jenkins, Maven, Amazon Web Services, Atlassian Bamboo, Chef, JIRA, Clover, JUnit, JMock, Maven, Nexus, NUnit, Moq, Subversion, Git.

Confidential, Boston, MA

UNIX / LINUX Administrator

Responsibilities:

• Installed Red Hat 4/5/6, Solaris 9/10/11, configured, and performed periodic updates.
• Worked with 2 and 4 node clusters using Veritas Cluster Server 4.0 and was involved in troubleshooting cluster issues which included service group, resource issues.
• Managed packages using RPM/YUM on RedHat Linux and maintaining patching on Solaris servers.
• Worked with VMware ESX Server 3.5 and configured VMs for Red Hat Enterprise Linux servers.
• Installation and Configuration of LDOMS 1.2 and 1.3 (Control domain, Logical domain).
• Configured and reconfigured System Controller (SC) and ALOM on multiple Architecture Sun Servers and upgraded server memory on RHEL5 & 6 servers.
• Worked on installing open source cloud foundry,
• Configured and Reconfigured System Controller (SC) and ALOM on multiple Architecture Sun Servers.
• Installedand updated packages, and performed overall configuration management using Puppet and Chef
• Setup and administeredVERITAS Volume Manager for NAS, SAN. Setup and administer VERITAS NetBackup & Cluster Server (VCS) for risk mitigation and disaster recovery.
• Performed tuning, and troubleshooting of SUN solaris / RHEL systems using tools like cppweb, and in-build tools: vmstat, iostat, sar, top, prstat, free, prtconf, netstat etc.
• Managed Linux system security, utilizing TCP Wrappers, PAMs, and Iptables firewall.
• Configured SELinux layer of security on Red Hat server 5.
• Used ISS System Scanner to detect and remove system security vulnerabilities.
• Performed bonding and load balancing(IPMP) to divert traffic which intact system failure.
• Performed troubleshooting on Sun, IBM and HP Servers for booting, network, hardware, user and OS related issues.
• Configured network settings, resolved TCP/IP issues on RHEL 5 & 6 servers and administered NFS on Sun Solaris and RHEL 6.5
• Worked on FTP servers for sending and receiving files between local and remote servers.
• Involved with the SSL certificate missing issues and installed certificates from backups.
• Installed, integrated and tunedLDAP,Apache Tomcat, JBOSS, WebSphere and Weblogic application server.
• Performed user account administration, created groups and add users to the appropriate group.
• Created Storage Group, Zones, Volume groups, and different RAID's using EMC Utility and responsible for backup and recovery using NetApps snapshot.
• Worked with various types of file systems, and volume management solutions: ZFS, LVM, VxVM, and SVM.
• Veritas File system and Veritas Volume Manager 5.0 are used to configure the RAID 1 and RAID 5 Storage Systems.
• Performed systems log management, Data backup and restoration with UNIX native tools (tar/dd).
• Performed Shell Scripting (bash, pythonand ruby) to monitor logs, disk space, services and process.

Environment: Sun Solaris 8, 9, 10, Red Hat Enterprise Linux (RHEL) 4.x, 5.x, IBM X 3650, X3850, Sun SPARC Enterprise T5120/T5220/T5240, Sun Fire V120/V240/V440/V490/V880, E420R/E450, Netra T1, Sun Fire 3800, T1000, T2000 HP Proliant DL 380, LDOMS 1.2, ISS system Scanner, Teamquest, VMWare, Veritas Volume Manager, Veritas Cluster Server 4.0, SVM/LVM, VMware ESX Server 3.5.

Confidential

Solaris/Linux Administrator

Responsibilities:

• Staged and Maintained UNIX (Solaris 8,9 &10, Red Hat Enterprise Linux4, 5,) on Sun Enterprise servers and Dell Servers.
• Implemented the Jumpstartin Solaris servers and Kickstartin Linux Servers to automate the server builds for multiple profiles.
• Implemented and administrated of virtualization on Solaris 10 with zones and created containers using FSS.
• Installed software and patches(yum, yast)-- Disk installation and maintenance - modify vfstab file for automatic mounting while booting, format disk and restoration of UNIX files and file systems
• Implemented file sharing on the network by configuring NFS on the system to share essential resources.
• Performed systems log management, Data backup and restoration with UNIX native tools (tar/dd).Monitored client disk quotas & disk space usage.
• Set up mount points on Solaris servers for Oracle database and installed MySQL server.
• Performed data management using native Solaris utilities for archiving and compression.
• Performed storage management with SAN/NAS and migrated the manual jobs to self-executing cron jobs on Physical/Virtual Servers.
• Configured and managed Apache Web Server on Linux for web based applications using REST/SOAP, Apache and Weblogic.
• Installed and configured Solaris servers using Jumpstart, configured/maintained Zones, LDOMs, ZFS pools on Sun Solaris 10 Servers.
• Performed load balancing and failover I/O multipathing to render ability to set up multiple redundant paths for fiber attached storage area network (SAN).
• Used fsck on file systems successfully when critical data got corrupted.
• Managed file systems and disk management using Solstice Disksuite.
• User account management, managing passwords setting up quotas and troubleshooting user logins using various remote login utilities.
• Worked on SVM to mirror the root disks, and used Veritas Volume Manager, Filesystem to maintain multiple disks and implemented 4-node cluster for GLPROD and GLRAC and implementing 3-node cluster for PRODERP.
• Experienced with backup technologies likeVeritasNetbackup4.x, 5.0, 6.x and Tivoli Storage Manager 5.5.
• Worked with other IT teams, and other managers in helping build and implement systems and standards.

Environment: Redhat 4/5, Solaris 8/9/10, CentOs 4/5, SUSE linux 10.1/10.3, SPARC Enterprise M3000, M5000, M8000, T5220, T5240, Sun Fire v880, v490, v440, v240, v210, Dell (T100, T105, T200, R300) Apache 2.2, JBOSS 4.2, Jumpstart, KickStart, likeVeritasNetbackup4.x, 5.0, 6.x, HP C Blade system, BL460c, BL420c, Tivoli Storage Manager 5.5, MySQL, VMware, Veritas Cluster Servers, Solaris Volume Management, Websphere

Confidential

Junior Linux Administrator

Responsibilities:

• InstalledRedhat Linux 5.2 on Dell, Linux Enterprise Server Machine E20 Enterprise Server (Sun Solaris)
• Installed, Maintained, Administered and troubleshooted Sun Solaris 8,9 and Redhat 9, AS 3.0 servers on various hardware platforms that include Sun 4800, V480, 280R, 4500, 3500, Dell 6400, 2400, 1800 etc.
• Performed automated installations of Operating System using Jumpstart for Solaris.
• Extensively worked on hard disk mirroring and stripe with parity using RAID controllers
• Implemented a High Availability Cluster using 2 V480s, a T3 and Veritas Cluster Server 4.1.
• Provided day-to-day user administration like adding/deleting users and managing users queries. Shell programming for routine administration tasks. Analyzing & monitoring system performance through various system
• Configured Samba Server on sun machine, established network connectivity with PC’s through SMB & NMB Protocol.
• Backup & Recovery system performance monitoring kernel tuning, debugging OS failure.
• Manage Tivoli monitoring tool.
• Attended the day to day user problems
• Adding users according to ticket requirement and mounting the file system, cron-jobs adding etc in Redhat Linux
• ConfiguredDNS, NIS+ Send mail Server Redhat Linux 5.2
• Implemented and Administered Network File Systems using automounter and administering user and OS data files in NIS, NFS environment
• Created Oracle Databases and related tasks to support the Oracle team
• System Administration of Redhat Linux & SOLARIS,, Red Hat Linux boxes 5.5, 6.0,6.1,6.2, HP Proliant DL 320/360/380/560 & NT Servers 3.5, 4.0 and Win NT 2000.
• Configured Printers(Local, Remote & Network Printer) in Redhat Linux 5.2
• Responsible for all day to day system administration tasks (Disk space issue/FS/User logins)
• Configured network file sharing and enabled remote mounting file systems.
• Implemented TCP/IP network based on DHCP, DNS on Linux 5.2 & Sun Solaris 8.
• Set up of network involving Sun Workstation, Servers and Communication Product.
• Setup a Jumpstart server and client workstation installation.
• Implemented Server Virtualization using VMware for Redhat linux.
• Designed, implemented and configured disaster recovery plans for operating systems, databases, networks, servers, and software applications.

Environment: Solaris 8/9/10, Redhat Linux 4/5, HP-UX 11i, VMware ESX, Sun Fire 440R Server, Sun Fire V880/890, Sun Enterprise T series servers, SPARC Server 1000, HP 9000 K, L, N-class Server, IBM P series Servers, Veritas Net Backup 6.x, Veritas Volume Manager 5.x