SUMMARY

• A Dedicated DevOps Engineer, with 8 years of IT experience specializing in automating the process for Increasing the Agility and Quality of Software Releases with deep expertise in Automation/Command line Tools, Continuous Integration/Continuous Delivery Pipelines, Public/Private Clouds.
• Expertise in installation, administration, patches, upgrade, configuration, performance tuning and troubleshooting of Red Hat Linux 4/5/6and Sun Solaris 9/10.
• Expert in Kickstart, Infrastructure setup, and Installation Methods.
• Good knowledge of RPM, building, maintaining, and installing packages.
• Experience with extensions for RPM, building virtual packages, and fixing dependency loops
• Experienced in Installation and configuration of Samba, Sendmail & Procmail, Apache web server, Tomcat web server.
• Having experienced in Agile Methodologies, Scrum stories and sprints experience in aPythonbased environment, along with data analytics, data wrangling and Excel data extracts.
• Deployed Docker images, hosted network service and testing using Docker cloud.
• Using Docker Universal Control Plane (UCP) to deploy dockerized applications on - premises, behind the firewall.
• Worked on several Docker components like Docker Engine, Hub, Machine, Compose and Docker Registry Configured Nginx based load-balancing for QA services, to avoid download for testing.
• Leveraging Docker Engine to run Multiple Tomcat Instances as Containerized App Servers.
• Experience with the installation and configuration of web servers like Apache 2.x/1.3. x.
• Experience with high-end enterprise servers like DELL (PowerEdge), HP (ProLiant G7 & G8), IBM BladeCenter, Sun-Fire X-series and T-series Enterprise Servers, Dell Power Edge Servers and MD1000 Storage/RAID setup.
• Experience working in Java, JavaScript, andPythonsoftware development environments.
• Experience with Design, code, and debug operations, reporting, data analysis and web applications utilizingPython.
• Experienced withPythonframeworks like Webapp2 and, Flask.
• Expert knowledge of and experience in Object Oriented Design and Programming concepts.
• Good Knowledge ofPythonandPythonWeb Framework Django.
• Very strong experience writing API's/ and Web Services in PHP and inPython.
• Performed containerization of micro services using Dockerandrolled out to upper environments.
• Created Docker images and deployed Dockercontainers for Tomcat Servers.
• Comprehensive responsibility for the specification, deployment and maintenance of mission-critical AppleMacOSX, Linux and Microsoft Windows servers which are accessed by 200 Windows and 30MacOSX clients via 15 Cisco Layer 3 switches for Cincinnati’s ABC affiliate, WCPO-TV, Channel 9.
• Provide first- and second-tier support for AppleMacOSX and Microsoft Windows clients and servers. provide third-tier support for AppleMacOSX and Linux servers.
• Experience in Configuring DHCP, DNS (BIND), FTP, NTP, Mysql, LDAP, and NFS.
• Experienced in working with the Configuration Management Tools such as CHEF and Ansible.
• Install and manage software and hardware RAID disks to improve fault tolerance and performance.
• Experienced with AWS EC2, Route53, DNS, ELB, EBS, AMI, VPC, Cloud Formation Templates, Cloud Watch Monitoring and used Chef to leverage and manage AWS Instances.
• Hands-on Custom-built enterprise servers for High-Availability, load-balancing, and failover in a clustered environment.
• Hands on experience in installing and configuring Puppet and automating tasks using puppet modules.
• Good knowledge in writing Shell scripts (Bash, Ksh, and PERL) to automate routine tasks like Selective file removal, disk space utilization & Process Management.
• Experience with configuring firewalls using Linux. Familiar with configuring advanced features such as NAT, port redirection, and logging.
• Automated setting up server infrastructure for the DevOps services, using puppet/Ansible, shell and python scripts
• Experience in writing Power shell script to do Imaging and Deployments inAzure.
• Experience in working with the Version Control Systems such as Git, Git-Hub, and Subversion.
• Deployed Puppet for configuration management to existing infrastructure
• Knowledge of working with Amazon Web Services (AWS) for application migration from hard structure to Amazon cloud.
• Experience with the performance monitoring tools like Nagios, Splunk.
• Good knowledge in diagnosing and resolve modem and TCP/IP connection problems
• Experience in Installing, Configuring, and Implementing Virtualization Environment Using VMware ESX and ESXi, Oracle Virtual Box, and Microsoft Virtual PC.
• Strong Knowledge in the implementation of enterprise storage solutions SAN (created VGs and LVs on SAN disks), NAS (mounted and shared NAS devices for multi servers), logical volume management (LVM).
• Experienced in troubleshooting problem related to boot loaders like GRUB and LILO and perform PXE booting
• Used netstat and other tools on specific hosts to determine increased connections to specific processes, customer specific, for attack traffic.
• Experience with backup technologies like Tivoli Storage Manager 5.x, 6.x and Veritas Netbackup 4.x, 6.x, 7.x, EMC Networker v7 and CommVault.
• Experience in configuring, monitoring and troubleshooting various file systems like Ext 4,Ext 3, Ext 2,UFS, NFS, and JFS.
• Experience in installing, updating packages in Red Hat Linux servers usingRPM’s and YUMrepositories.
• Worked on Active Directory integration tools likeQuestandCentrify.
• Good working knowledge onHACMP5.x andNIM Master and Clients.
• UseILO/HMC/DRACfor remote access of servers on Linux/AIX respectively.
• Worked extensively on Red Hat LinuxDNSservers from installingBIND package, updating the BIND database andtroubleshooting the problems
• Migrated from platforms like Solaris to Linux and HP-Unix to Linux.
• Experience in Major and Minor Upgrades of Linux, Solaris.
• Experience on using bash, awk, and sed to automate log monitoring.
• Experience in configuring SUDO, granting permissions to users, creating and administrating control and guest domains on LDOMs
• Expertise with the crontab and autosys for scheduling jobs.
• Strong understanding and Experience with the agile development, Waterfall model, and other process models
• Team player with good management, analytical, communication, and interpersonal skills.
• Disk space and File system management using Veritas Volume Manager 4.x, 5, Logical Volume Manager and Solaris Volume Manager, and ZFS.
• Experienced in Deploying and Administrating CI/CD tools such as Jenkins and Team City.

TECHNICAL SKILLS

Linux Server Administration: RHEL 4, 5, 6; Solaris 9/10/11; Expertise on Dev, Staging and Production environment under various OS, Application and Storage platforms; Shell Scripting: Bash. Fedora, SUSE, Debian, Ubuntu, CentOS, IBM-AIX, Sun Solaris, and HP-UX, Windows - NT/ 2000/2003/2007 Server/XP Pro/Vista/7

Hardware and Virtualization: DELL (PowerEdge), HP (ProLiant G7 & G8), IBM BladeCenter, Sun-Fire X-series and T-series Enterprise Servers, Dell Power Edge Servers and MD1000 Storage/RAID setup

Web, Application and Mail Servers: Weblogic 10.x/9.x/8.x, Websphere, Apache HTTP/Tomcat/Jboss Server Installation & Configuration; Compiling with Modules; Virtual Hosting; SSL, Load Balancing & Clusters

Network Protocols: DHCP, DNS, SNMP, SMTP, Ethernet, NFS

Databases: Oracle 8/9i/10,11G, DB2 and MySQL

Open Source Tools & Other Exposure: Nagios, Splunk, Puppet, Windows 2000/2003/2008/2012 Server Installation & administration, Antivirus Software’s, MS Outlook; Knowledge on Java, C, C++, Ruby, PHP, Shell Scripting, OS Administration Basics

Scripting Languages: Shell, Ruby, Perl, Python.

Cloud & SaaS Platforms: Amazon, Google Web Services and Microsoft Azure.

Configuration Management Tools: Puppet, Chef, Ansible

Backup and Recovery tools: Dump, Restore, Tar, CPIO, Rsync, Kernel recompilation & Patches update, Kickstart Installation; Firewalls: IPTables, SELinux, ACLs

File Transfer: FTP-Vsftpd; NFS & SAMBA; DNS-BIND, NTP, CUPS, SSH, Telnet, VNC, NIS & LDAP, SSL

Monitoring tools: Nagios, Splunk, Netcool

Clustering Software: Red Hat Cluster Suite, VERITAS Clusters, Sun Clusters.

Virtualization Tools: VMWare ESX 3.0.1 & 3.5.0 Server, vSphere, VMware Infrastructure Client 2.5 & Xen 3.2

PROFESSIONAL EXPERIENCE

Confidential, Dallas, TX

Linux/DevOps Engineer

Responsibilities:

• Worked on installation, configuration, maintenance and troubleshooting of RedHat Enterprise Linux (RHEL 5.x/6.x/7.x), Ubuntu and Centos in Production, Development & Test Environment
• Planning and implementing system upgrades including hardware, operating system, and periodical patch upgrades.
• Monitored and supported 2500 odd Linux servers running a variety of business applications.
• Responsible for 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.
• Assisted with the migration of from Solaris to Linux.
• Installing, administering Red Hat using Xen, KVM-based hypervisors.
• RPM and YUM package installations, patching and server management.
• Built virtualized Linux servers on ESXi, Vsphere and Blade servers to host multiple applications on the same chassis across different server hosts.
• Designed and implementedChef, including the internal best practices,cookbooks, automatedcookbookCI and CD system.
• Having experienced in Agile Methodologies, Scrum stories and sprints experience in aPythonbased environment, along with data analytics, data wrangling and Excel data extracts.
• Used Jenkins for Puppet and Performed testing, building, code analysis.
• Deployed Docker images, hosted network service and testing using Docker cloud.
• Using Docker Universal Control Plane (UCP) to deploy dockerized applications on-premises, behind the firewall.
• Worked on several Docker components like Docker Engine, Hub, Machine, Compose and Docker Registry Configured Nginx based load-balancing for QA services, to avoid download for testing.
• Deployed Docker images, hosted network service and testing using Docker cloud.
• Leveraging Docker Engine to run Multiple Tomcat Instances as Containerized App Servers.
• Used Jenkins forChefCI, performed testing using Test-Kitchen.
• Experience with Design, code, and debug operations, reporting, data analysis and web applications utilizingPython.
• Experienced withPythonframeworks like Webapp2 and, Flask.
• Expert knowledge of and experience in Object Oriented Design and Programming concepts.
• Good Knowledge ofPythonandPythonWeb Framework Django.
• Very strong experience writing API's/ and Web Services in PHP and inPython
• Bootstrapped the Nodes using Knife and integrated with auto scaling.
• Installed Chef-Server Enterprise On-Premise and established WorkStation.
• 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 the security of systems. Handled Content Management Systems
• Creating the platform in AWS (Amazon Web Services Tool) according to the requirement.
• Comprehensive responsibility for AppleMacOSX server design, setup, deployment and day-to-day maintenance. Servers provide: Open Directory services (Master and Replica), Web, database, mail, print, file sharing (Windows,Mac, Unix), firewall, FTP, DNS and VPN services.
• Additional responsibility for on- and off-site backup storage and disaster recovery.
• 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.
• Performed installation, configuring, tuning, and troubleshooting of Apache web server, Tomcat, and WebSphere application servers.
• Experienced in implementing Splunk, Puppet, DevOps
• Experience configuring and managing Puppet master server and experience in updating and creating modules and pushing them to puppet clients.
• 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.
• Created Perl scripts to generate disk and file space alerts.
• Developed Korn and Bash shell scripts to automate routine activities and involved in running some SystemTap scripts.
• Automated system management tasks like user account creation, file system size monitoring, monitor system resources and system maintenance using Shell and Perl scripts.
• Installed and configured application server like JBoss and web server like Apache and Tomcat.
• Troubleshoot network connectivity used ping, netstat, ifconfig, and traceroute commands. Log in to the remote system using sudo, putty, and telnet. Transfer files across the systems on the network used FTP, SCP, and rsync commands
• Installed packages and patches using Red Hat Satellite servers
• Performed system administration activities like installing, updating the maintenance page, restarting and stopping the services during the maintenance period; generated daily report physically.
• Responsible for Vmware Infrastructure administration.
• Responsible for creating templates and deploying VM’s in VMware environment.
• Monitored Linux and UNIX servers using internal tools such as du, df, top, dmesg, who, free.
• Monitored the system's 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.
• Performed complete user accounts maintenance tasks using command line tools and Admin tool GUI menus. Also, configured user account management in an NIS environment with all user home directories automounted in production systems.
• 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 Multi-Pathing using Veritas DMP.
• Installed and configured Veritas NetBackup on client servers and performed periodical backups of server data files.
• Scheduling jobs through cron - frequent modification to crontab.
• Worked on NetApp Storage administration and configuration clusters (7-mode and c-mode (Ontap 7.x,8.x, NAS/SAN)
• Troubleshooting Linux network, security related issues, capturing packets using tools such as IPtables, firewall, TCP wrappers, NMAP, and familiar with Satellite Server
• Preparing servers for Oracle RAC installation which includes tuning the kernel, agent installation, adding NAS storage on 2, 3, 4 node clusters.
• Develop scripts to perform weekend checkouts after reboots occurring every weekend.
• Performed configuration and administration of SENDMAIL server and testing the mail server.

Environment: Red Hat Linux 5/6/7, VMware ESXi 4.0/5.0, Hp Unix 5.1, Veritas Volume Manager, SAN, NFS, VMware ESX, Apache, Tomcat, Veritas Volume Manager 4.0, Veritas Cluster 4.x, Tivoli Storage Management and SAN storage, Amazon Web Services(AWS), Chef, Splunk, Puppet, HP DL360, 380, DL385, Cisco Blade servers, GIT repository, Nagios.

Confidential, Minneapolis, MN

Linux/DevOps Engineer

Responsibilities:

• Worked as Administrative support for 2200 odd Linux running Weblogic Suite applications, a variety of business applications.
• Performed Installation, the configuration of RHEL 5/6, Centos 5/6, and Solaris operating systems.
• Performed live as well as manual OS upgrade from red hat 4 to red hat 5 and 6.
• Creating and managing shared disk groups in a clustering environment.
• Installation of local yum repository and package administration using yum and rpm.
• The user, Group management for all the Linux Servers.
• Setup and management of SFTP server for file transfer services.
• Installed/configured/maintained the Linux servers NIS, DNS, NFS, Sendmail, Apache, FTP, ssh
• Installed host firewall IPtables for Redhat Linux
• Implemented chroot jailing for users to have restricted access to the SFTP server.
• Setup LDAP Client services on Linux Servers.
• Automation of various administrative tasks on multiple servers using Puppet.
• Implemented Puppet, DevOps.
• Deployed Puppet, Puppet Dashboard, and Puppet DB for configuration management to existing infrastructure.
• Experience with Design, code, and debug operations, reporting, data analysis and web applications utilizingPython.
• Experienced withPythonframeworks like Webapp2 and, Flask.
• Expert knowledge of and experience in Object Oriented Design and Programming concepts.
• Good Knowledge ofPythonandPythonWeb Framework Django.
• Very strong experience writing API's/ and Web Services in PHP and inPython
• Proficient in installation, configuration and maintenance of applications like Apache, LDAP, and PHP Involved installing and managing different automation and monitoring tools on Redhat Linux like Nagios, Splunk, and Puppet.
• Configured Linux Kickstart on multiple servers for network installation.
• Creating and cloning virtual machines in VMware environment using Virtual Infrastructure client 3.5 and Vsphere 4.0.
• Serve as the primary SME onAzureservices including DRaas, SaaS, PaaS and IaaS while contributing architecture decisions for our ongoing migration efforts
• Implement deploy and configureAzurewebsites, configure diagnostics, monitoring and analytics onAzurePlatform along with scale and resilience forAzureWeb sites.
• Involving for Manage hosting plans forAzureInfrastructure, implementing & deploying workloads onAzurevirtual machines (VMs), Design and implement VM storage & good understanding onimplementing images/disks, Hyper-V, VMware technologies and System Center Components
• Installed Oracle Database 10g and 11g, Oracle Application Server 10.x and E- Business Suite 11.5.10 application. Assisted the DBA team with various tasks like creating database instances, cloning of databases, monitoring Oracle services and performing RMAN backups.
• Installed and configured Veritas Enterprise Netbackup (NB 5.1.3, 6.5.1) and set up policies and schedules for backups and restores. Created RMAN templates for Oracle backups using Netbackup.
• Performed OS hardening to make UNIX environments more secure. Installed Center of Internet Security (CIS) benchmark tool to gauge security loopholes and hardened the systems accordingly
• Involved in the administration of Content Management systems.
• Set up test labs for testing hardware and software compatibility with new releases of OS, application software.
• Monitoring CPU, memory, iSCSI disks, disk controllers, physical disk, HW and SW RAID, multipath, file systems, a network using the tool NAGIOS.
• Extensive experience in installing, integrating, tuning and troubleshooting Apache, Tomcat, and WebSphere servers.
• Implemented SUDO, SSH, and other security tools and implemented SOX (Sarbanes-Oxley) security compliance.
• Assisted in configuring the application servers with other components such as a database, web servers, LDAP directory, Active Directory, BEA Web logic etc.
• Developed scripts for automation and monitoring purpose in PERL and Python.
• Monitored and troubleshot different performance related issues using performance monitoring utilities like IOSTAT, VMSTAT, TOP, NETSTAT, and SAR.
• Linux backup/restore with tar including disk partitioning and formatting.
• Performed Volume Management using Logical volume management (LVM).
• Acted as liaison between various development teams, DBA and application teams to resolve issues and provide support.
• Maintaining appropriate file and system security, monitoring and controlling system access, changing permission, ownership of files and directories, maintaining passwords, assigning special privileges to selected users and controlling file access, monitoring status of the process in order to increase the system efficiency.
• Prepare technical documentation for all setup and configuration steps, architecture Visio diagrams.
• Configured and installed apache web servers on the different Linux and UNIX servers.
• Monitored system logs and important messages for errors and warnings of the hardware and software failure.
• Created file systems on LUNs from SAN environments, which included EMC Symmetrix/ Clariion series.
• Configured and troubleshot Symantec Enterprise Security Monitoring Tool.
• Provided Shell scripts to automate to support setup, configuration and operational tasks.
• Provided 24x7 production support for 200+ Linux and Solaris OS.

Environment: Redhat 4.x, 5.x,6.x, Centos 5/6, and Solaris, Logical Volume manager, Centos 5/6, Server Dell R310, R410, R910 servers, DNS, NFS, SMTP, Web server Apache 1.3x, Application server Jboss, Nagios, Puppet, PERL and Python.

Confidential, Bloomington, Illinois

Mac OS/Linux System Administrator

Responsibilities:

• Supporting Linux System Administrator customers with RHEL/SUSE/Mac OS X a combination of systems architecture, systems development.
• SAN support from a directory standpoint, technology scaling, server builds, migration and/or transition planning, project planning, and standards validation/development, troubleshooting and problem resolution.
• UsedAnsibleto manage Web applications, Environments configuration Files, Users, Mount points and Packages.
• Automated setting up server infrastructure for the DevOps services, using Ansible, shell and python scripts
• MacOSX engineer for internal Workforce.
• Comprehensive responsibility for the specification, deployment and maintenance of mission-critical AppleMacOSX, Linux and Microsoft Windows servers which are accessed by 200 Windows and 30MacOSX clients via 15 Cisco Layer 3 switches for Cincinnati’s ABC affiliate, WCPO-TV, Channel 9.
• Provide first- and second-tier support for AppleMacOSX and Microsoft Windows clients and servers. provide third-tier support for AppleMacOSX and Linux servers.
• Manage departmental personnel, schedules, projects and budget
• Log, track and remediate internal customer issues
• Developed OpenStack infrastructure with automation and configuration management tools such asAnsible, or custom-built cloud hosted applications and usedAnsiblefor continuous integrations.
• Automation of AWS infrastructure viaAnsible, and Jenkins - software and services configuration usingAnsiblePlaybooks.
• Architect, design, build and deploy on-premise JAMF Software Casper Suite forOSX management
• Hand-code more than 200 custom shell scripts; hand-tune Apache, MySQL and Samba
• Author and deliver Tier 1, Tier 2 and Tier 3 training; author knowledge base articles
• Coordinate with stakeholders, ensuring their needs are met and exceeded
• Installed OAS (Oracle Application Server) on Solaris 9 and its configuration with Oracle database.
• Installed and configured of hardware and OS (Solaris 10 and RHEL 4/5) on x86 servers.
• To provide ongoing support in systems management and administration of LINUX/UNIX in the global-scale environment.
• Installed and Configured both Kickstart and Jumpstart Servers for the Infrastructure Server Deployments.
• Solaris OS Hardening as per company security standards.
• Installation and use of different Business packages on Solaris and OS X Platform.
• Applying OS and security patches for Solaris Operating Environment.
• Involved in migrating from Solaris to Linux and Windows to Solaris and Linux servers.
• Providing 24*7 on-call support on a rotation basis and Handling High priority incidents through bridge calls.
• Implemented Puppet Version 3 for Automation in the Non-production environment.
• Handled effectively Issues related to NFS, NIS, and LVM, Grub corruption, configuration & maintenance of RAID (level 0, 1, and 5).
• Troubleshooting VERITAS Volume Management and cluster server environment.
• Used VERITAS Netback up tool for Backup and recovery, Developed and executed test plans for Veritas Cluster with Netapp SAN.
• VMware configuration, automount, installing Solaris/Linux software and patches, NTP and swap space, memory and capacity alerts, SSH and k5login and hung system reboots.
• Writing scripts in PERL and SHELL to automate the process.
• Created Korn shell scripts to monitor system resources and system maintenance and Performed administrative tasks such as System start-up/shutdown, and Backup strategy and scheduled cron jobs for job automation.
• Attended team meetings, change control meetings to update installation progress, and for upcoming changes in the environment.
• Monitored the health of servers and implemented customized solutions where applicable as well as provide reports on server utilization. Standardization, Documentation, and Processes.
• Creating volumes using storage for VMAX Array on Redhat & Solaris servers.
• Installation of Windows Server 2003 and creating Active Directory Users.
• Experience in using protocols like NIS, NFS, SSH, SFTP & DNS.
• Created test scenarios for testing NIS, NFS, DNS and other functionality of the OS. Maintained system security, including password checks, permission scans, implementation of security ensuring tools Linux environment.
• Daily backup and restore operations.
• Installed and maintained web servers Apache Tomcat and Apache HTTP (1.3, 2.2) Web server in Red Hat Linux.
• Dealt with Linux Utilities: KICKSTART, SSH, FTP, AUTOFS, Quota Management, wrappers.
• Maintaining device installation and configuration.
• Installation of Firewall checkpoint. Installed and configured IPFilter, to protect Linux system that was placed on the Internet.

Environment: Red hat Linux 3,4,5,6 Sun Solaris 8,9,10 Sun V440, V890, T5220, T5240 Sparc M4000, Switches, VMware ESX 5.1, oracle 11g, Veritas Cluster Server 5.

Confidential, Bentonvelli, Arkansas

Unix/Linux Administrator

Responsibilities:

• Installed RHEL 4.0/5.0 using kickstart and custom building the servers.
• Installed/configured EMC Storage with 0, 1& 5 RAID configurations.
• Installed and maintained Security issues.
• Setting up network environments using TCP/IP, NIS, NFS, DNS, SNMP agents, DHCP and Proxy.
• Performed all System Administration tasks like cron jobs, installing packages, and patches.
• Diagnosing hardware/software problems and provide solutions.
• Configured and maintained Samba Server, NFS Server, NIS Server and clients, DNS clients and Auto Fs File systems.
• Troubleshooting system, network, and user issues.
• Performing tape backups, archiving and checking data integrity through Shell Scripts and job automation.
• Supported back office systems environments.
• Testing and upgrading production, development and test Linux and Solaris servers.
• Creation & Maintenance of user accounts & passwords & profiles, home directories, initialization of files, groups’ creation and management, setting file permissions, customizing shell environment setup for users.
• Additional responsibilities include schedule and administration of server backups, setup, and administration of network and ms mail accounts.
• Maintained IBM AIX servers.
• Install and configure Apache, Tomcat for web server environment.
• Responsible for on-site installation, implementation, maintenance and repair of company and multi-vendor systems solutions.
• Configured and maintained DNS and DHCP services.
• Recovery of systems due to system panics. Volume group recovery due to volume group configuration corruption.
• Configure Nagios for server monitoring
• Writing bash scripts for job automation.
• Performed regular installation of patches using RPM.
• Maintained LVM, VxVM, and SVM file systems along with NFS.
• Maintaining production critical servers running Solaris UNIX, Linux supporting Oracle database and Web services. Providing 24x7 supports.
• Worked efficiently using Veritas NetBackup on development and production servers for backups and restores.
• Created LVMs on Linux servers.
• Writing Shell Scripts for managing day-to-day transactions & for automation of routine tasks.
• Installation, Setup, and Configuration of WebLogic 9.0/8.1 Application server.
• Disk Management using different RAID technologies in Solaris and Linux using Veritas Volume Manager and LVM.
• Maintaining appropriate file and system security, monitoring and controlling system access, changing permission, ownership of files and directories, maintaining passwords, assigning special privileges to selected users and controlling file access, monitoring status of the process in order to increase the system efficiency, scheduling system related and cron jobs.
• Installed and configured mail servers like Send mail, Postfix and Microsoft Exchange Server.

Environment: HP Proliant servers, SUN Servers (6500, 4500, 420, Ultra 2 Servers), Solaris 7/8, Veritas NetBackup, Veritas Volume Manager, Samba, NFS, NIS, LVM, Linux, Shell Programming.

Confidential, Minneapolis, MN

Unix/Linux Administrator

Responsibilities:

• Installation and administration of RHEL 3.0/4.0/5.0.
• Configured kickstart server and updating/applying patches to the servers using Redhat Satellite Server.
• Remote system administration using tools like SSH, Telnet, and Rlogin.
• Responsible for the Database / Network operation with 8 servers and 120 Desktops.
• Managing SUN Solaris, HP-UX, Compaq and Linux workstations and servers
• Setup Squid Proxy Server for Internet sharing and to block the unwanted sites.
• Maintained Samba File Server for user authentication, Syslog domain, and file sharing.
• Setup Clustering for Linux servers.
• Assisted the development team and reviewed the required maintenance tasks.
• Responsible for Connectivity issues among various Servers and various software components.
• Package and patch management on Sun servers.
• BIOS UPGRADE and OS installations and configurations and maintenance
• The configuration of Hardware and Software RAID on Digital & Sun Servers.
• 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.
• Configuration and maintenance of Apache and Tomcat Servers.
• Performed administrative tasks such as system startup/shutdown, backups, Printing, Documentation, User Management, Security, Network management, the configuration of dumb terminals.
• Installation of Oracle Patches and Troubleshooting, Creating and modifying application related objects, Creating Profiles, Users, Roles and maintaining system security.
• Kernel tuning, Writing Shell scripts for system maintenance and file management.
• Worked on Solari's volume manager to create file systems as per user and database requirements.
• Troubleshooting the system and end user issues.
• Responsible for configuring real-time backup of web servers.
• The log file was managed for troubleshooting and probable errors.

Environment: Red Hat Enterprise Linux, Oracle, PowerBuilder, Toad, Windows 2003 Server, Java, Trend Micro Antivirus, Dell PowerEdge1300, 1500, Acer Server, Citrix, VOIP, WebEx and Redhat Satellite Server.