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Senior Linux/unix Administrator Resume

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ParsippanY

SUMMARY:

  • Around 9+ years of total experience as a UNIX administrator, 5+ years of Linux & Solaris Systems Administrator and HP - UX in various industries on mission critical Enterprise Networks and Multi-server environments.
  • Experienced in installing and administrating RedHat and other Linux Operating Systems.
  • Experience in Administration, implementation and support of various Linux OS like Red Hat 5, 4 & 6.
  • Experienced working in fast-paced, deadline-oriented environments.
  • Working with VMware ESXi 5.5, vsphere, vmotion.
  • Strong working experience in working with ticket systems such as Support Works, BMC, SDM12 Remedy and an understanding of priorities and SLA’s.
  • Working knowledge of EMC storage migration.
  • Knowledge of ITIL framework and implementation of Incident, Problem, Change Management.
  • Experience a system with Yum and downloading the rpm package files with Yum downloader, Runs Yum Automatically.
  • Install, configure, Update the UNIX OS & facing the entire troubleshoot and support the system
  • System booting to the Full operating system.
  • Installing new Software, monitoring the system, troubleshooting, maintaining local documentation, adding security and helping the users, adding security and performing backups.
  • Provided technical support on issues involving operating systems.
  • Understanding of Network Monitoring, RAID, CIDR, DNS, SMTP, SNMP and IP addressing, Subnet Mask.
  • Strong working experience on Bash/ksh shell.
  • Good understanding and design, configure and update of TCP/IP, Send mail, NIS, NFS, Auto mount file system, Packaging & Patching, Load balancing, Network & Data replication.
  • Highly proficiency with IP addressing and Subnet mask, IPv4 Networking
  • Good Knowledge of HTTP Server, SSH and security protocol
  • Knowledge of SSH/SFTP/SCP, HTTP
  • Experience with System management tools - Capacity and Configuration Management Automation, (Nagios/Openview,

TECHNICAL SKILLS:

Operating Systems: Solaris 8,9,10, HP-UX 9000/832, HP-UX 11.0, RHLE 5.0 & 6.0 Windows 2000/2003

Security: Firewall, TCP/IP, SSH, F-Secure, Putty, PcAnywhere, dameware

Tools: LVM, Linux File system, VMware

Monitoring tools: SiteScope, Openview, Nagios, Topaz, SCOM

Networking: DNS, NFS, NIS, LDAP, LAN, WAN, Firewall, TCP/IP

Scripting: Bash/Ksh

RDBMS: SQL

Virtualization: Vmware, Zone, Ldom

PROFESSIONAL EXPERIENCE:

Confidential

Senior Linux/Unix Administrator

Responsibilities:
  • Working with Blade Logic RSCD agents staging and Installation from Client to Server.
  • Importing the Server to the BladeLogic console at Netherland with .csv file.
  • Patching the server at the BL console.
  • Working with Solaris/RHEL installation, configuration and implementation.
  • Working with yum configurations and RHN network troubleshooting.
  • Hands on Exp with Kickstart installation.
  • Preparing the scripts and cronjobs for regular task automation.
  • Working on Apache webserver configuration.
  • Working with file-sharing in Linux and Windows also with apt-get and properties from Windows.
  • Working exp with SSH, NFS, DNS, AutosFS and LDAP.
  • Writing the shell scripting in Bash/ksh for automation the process.
  • Working experience on Solaris/RHEL performance monitoring, tuning, troubleshooting and security.
  • Working with KVM and VMWare installation, configuration and Implementation.
  • Implementing QAS on an Internal server
  • Building the /etc/auto.home file for non-LDAP authenticated server with local accounting.
  • Create the script to build /etc/auto.home entries to keep local homes
  • Put the contents of test.file above the automount of NAS share line
  • Create the export directory
  • Restart autofs service.
  • Writing shell script to build /etc/auto.home entries to keep local homes in /home.

Environment: Solaris 9/10, Red Hat Linux enterprise 5.0,6.0, Sun E10k, E25K, E450, SunFire V440/880, EMC Symmetrix DMX 3, DMX4, Redhat Linux Release AS 4.0, VeritasfilesystemVxFS, Veritas volume manager VxVM 4.1, SVM, SUN SPARC Ultra\'s

Confidential, Parsippany, NJ

Amazon Web Services Developer/Linux Admin

Responsibilities:
  • Works with the AWS Design team on the AWS Management Console, where I have the experience as a web developer and software engineer to bridge the gap between the design and engineering disciplines in an effort to build a high-quality, robust, user-friendly console for interacting with Amazon Web Services.
  • I also designed, built, and deployed a multitude applications utilizing almost all of the AWS stack (Including EC2, R53, S3, RDS, SQS, IAM, and EMR), focusing on high-availability, fault tolerance, and auto-scaling.
  • Migrated applications from monolithic to service-oriented architecture.
  • Built several stand-alone applications from the ground up, including a service framework, event logging system, “big data” (10TB+) analytics platform, and various content management tools.

Environment: Red Hat Linux 5.0 & 6.0, AWS

Confidential

Linux/UNIX System Administrator

Responsibilities:
  • Providing the support of building the server, patching, installation, installing the package, run the package, managing the servers.
  • Developed shell scripts and programming tools to automate administrative tasks and providing the different type’s access to all the servers for UNIX SIE, DBA and application team such as backups.
  • Working with the ssh-keygen and authorized keys and also LVM.
  • Evaluated and solved system and network problems using various diagnostics and protocols including, NFS, TCP/IP, and DNS.
  • Working with the SAN migration on Solaris/Linux servers.
  • Writing the shell scripting in Bash/ksh for automation the process.
  • Performed remediation of Solaris/Linux servers with upgrade of explorer and emcgrab.
  • Managed work requests & coordinating implementation of projects.
  • Working on the File system on Linux and Solaris.
  • Working on the Production server remediation, installing and updating and running the crontab.
  • Used Admin tool for adding and managing new users, groups, software and printers, resolving permissions issues, user and group quota.
  • Perform daily maintenance routines on Linux Servers, monitoring system access, managing file space and tuning the system for optimum performance.
  • Setting up FTP, NFS and Samba servers for file sharing.
  • Involved in Creating Shell Scripts like Automation of Startup and Shutdown Processes.
  • Created disk groups, volumes, volume groups and RAIDs using VeritasVolume Manager.
  • Created new slices, mounted new file systems and un-mounted file systems.
  • Working with KVM.
  • VMware ESXi 5.5/vSphere Installation & Configuration
  • Planning and Designing VMware /vSphere (ESXi 5.5 andd VMware VirtualCenter)
  • Installation, Configuration and maintenance of Hosted VMware products.
  • Design, Implementation, Testing and Deployment of VMware Infrastructure
  • VMware vSphere client, Virtual vCenter Server.
  • Virtual Networking(Virtual Switches, VM Kernel Ports)
  • Install puppet around 3500 servers & configured them.
  • Writing the shell scripting in (bash/ksh) for automation the process.

Environment: Solaris 9/10, Red Hat Linux enterprise 5.0, Sun E10k, E25K, E450, SunFire V440/880, EMC Symmetrix DMX 3, DMX4, Redhat Linux Release AS 4.0, VeritasfilesystemVxFS, Veritas volume manager VxVM 4.1, SVM, SUN SPARC Ultra\'s

Confidential, NY

LINUX-UNIX Admin/Application Support Analyst

Responsibilities:
  • System admin for Global Operations & Infrastructure group managing & monitoring over 380 customer facing applications & websites, over 2000 UNIX & Windows servers utilizing such tools as Web Logic, Site Scope, Topaz and Remedy One.
  • Projects and Tasks:
  • Monitoring all the Linux/Solaris Servers/Windows and check the alerts/errors utilizing various applications and if user is affected we started service emergency until it is bring it back to the normal position and we checked until users/customers is satisfied.
  • Provide the support of building the server, patching, user administration tasks, deployment, software installation, performance tuning and troubleshooting
  • Provide the support of responding to the client and working with the different teams using the ticketing system and phone calls.
  • Working experience of supporting applications and middleware in Solaris, Linux and UNIX environments.
  • Writing the shell scripting in Bash/ksh for automation the process.
  • Resolving and documenting the system error and performance issue.
  • Providing the support of root cause analysis of critical errors and outages.
  • Provide remote and onsite and support for Client internally developed business critical applications and 3 rd Party vendor packages. Manage and escalate problems as appropriate.
  • Support Test, DR and Prod applications in a UNIX and Windows client/server environment, working with IP networks, LAN, WAN, SFTP and Databases.
  • Working on ITIL process experience with configuration, Problem, Incident, and Change Management.
  • All server, URL, process, application and resource (CPU, disk, memory, network) monitoring utilizing Site Scope, VMware, Topaz, HP-OV, SCOM and Nagios monitoring applications
  • Monitoring the health of Windows Server.
  • Manage Market feeds for both the US and European Market Workstations
  • Working on Apache Web server and restart failed Apache and IIS servers and services
  • Working knowledge of PCAnywhere, Dame ware and F-Secure SSH with respect to managing Unix and Windows 2000 Servers
  • Configure & administer Market Workstations for ratings & editors end users
  • Strong knowledge of Performance tuning, ability to interact with partners in troubleshooting and building complex systems
  • Configure CPU, memory, and disk partitions as required.
  • Writing the shell scripting in Bas/ksh for automation the process.
  • Create, maintain and review operational process and support documentation
  • Monitor program execution for expected performance; Modifies, installs, and prepares technical documentation for system software applications

Environment: Solaris 9/10, Red Hat Linux enterprise 5.0, Sun E10k, E25K, E4500, SunFire V440/880, EMC Symmetrix DMX 3, DMX4, Redhat Linux 4.0, VeritasfilesystemVxFS, Veritas volume manager VxVM 4.1, SVM, SUN SPARC Ultra\'s

Confidential, Edison, NJ

Linux/Unix Administrator

Responsibilities:
  • Support and maintain Linux servers in a distributed environment
  • Responsible for performing upgrades and applying patches as required.
  • Build and configure Servers with Unix based on specification
  • Monitor all UNIX Servers for CPU utilization, Network traffic, and hard drive space, Memory using related software
  • Using the Linux system with yum and downloading the rpm package files with Yum downloader.
  • Using Red hat package Manager and runs yum automatically.
  • Handling all the hardware, Software and network related support issues.
  • Responsible for day-to-day operations involving monitoring, Queues, health checks, remote administration of systems in a production environment.
  • Performing day-to-day admin activities like managing LVM disks, file systems, user creation, administration and device configuration.
  • Checking the status of backups, investigating the error and rerunning the backups
  • Starting backups based on client requests and some regular daily and incremental backups.
  • Writing Shell scripts for collecting data from server, mass password changes etc.

Environment: Solaris 9/10, Red Hat Linux enterprise 5.0, Sun E10k, E4500, SunFire V440/880, EMC Symmetrix DMX 3, DMX4, Redhat Linux Release AS 4.0, VeritasfilesystemVxFS, Veritas volume manager VxVM 4.1, SVM, Veritas cluster server 4.5

Confidential, MN

Linux/UNIX Administrator

Responsibilities:
  • Installation of SUN Solaris 8, 9 on Sun Servers using jump start and Linux based servers with in development, test and production environments
  • Creating user accounts, user administration, local and global groups on Solaris platform.
  • 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 process in order to increase the system efficiency.
  • Monitoring CPU, memory, physical disk, HW and SW RAID, multipath, file systems Worked on Shell & Perl Scripting and System Architecture & Design.
  • To produce automated monitoring / actions for critical storage resources to eliminate manual intervention and service interruption.
  • Worked on LDAP client-server model to retrieve and manipulate data.
  • Scheduling jobs with Maestro &cron jobs, Printer maintenance and managing printers (network, local, remote and serial) using, Admin tool and lpadmin utility

Environment: SUN Solaris, E10K, E4500, SunfireV880/440, Sun Storage Array NAS and SAN, Sun servers (Sun Ultra 5, 280R, V240, V440, V480, V880, E450, E4500, E6500, E6800, E10K, E15K), SUN Blade 6000, Linux servers (Red-hat Linux Enterprise

Confidential, Merrimack, NH

UNIX Administrator (Jr.)

Responsibilities:
  • Installation of Solaris 8, 9 and HP-UX based servers with in development, test and production environments.
  • Proactive maintenance on systems by timely upgrading Patches to the systems and applications, Scheduling of batch jobs and cron jobs.
  • Providing day-to-day user administration like adding/deleting users and managing user’s queries.
  • Performed systems monitoring, upgrades, performance tuning and backup and recovery.
  • Regular disk management like adding / replacing hard drives on existing servers / workstations, partitioning according to requirements, creating new file systems or growing existing one over the hard drives and managing file systems.

Environment: Solaris 8, 9, Oracle 9i, HP Volume Manager, HP-UX 11.0

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