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Senior Systems Administrator Resume

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Wayne, PA

SUMMARY

  • Over 9+ years of IT industry experience as System Administrator working on Red HatLinux, Sun Solaris, and SUSE Linux.
  • Providing 24*7 supports as per the Business need.
  • Good hand’s - on experience in UNIX, Red Hat LINUX, Sun Solaris and AWS environment.
  • ITIL V3 trained, Having good knowledge in ITIL process i.e. Incident, Problem and Change Management.
  • Excellent problem resolution and communication skills with ability to work under pressure in a highly visible role.
  • Hands-on experience on Configuration management using “Ansible”.
  • Expert in Production environment, RCA's and monitoring the incidents and resolving before reaching the SLA.
  • Solving issues with spot fixes with Python and Shell scripting languages.
  • Expertise in Installation, Configuration and administration of Red hatLinux5x,6x and 7x, Solaris 10, 11 on x86 server, IBM AIX 5.x, 6.x, 7.1.
  • Experience on critical issues like Server down, hardware failure, NIC issues, mount problems, disk failures, NFS issues and performance issues.
  • Efficiency in installing, configuring and implementing the RAID technologies using VERITAS Volume manager and Solaris Volume manager.
  • Experience in setting up high availability applications using Veritas Cluster.
  • Expertise in Compliance remediation, in relation to Operating system security and risk items using CCS (Control Compliance Suite) tool.
  • Strong knowledge in Kernel Patching in Linux environment using automated and manual procedures.
  • Experience in shell scripting for doing CRON jobs that run daily to check disk usage and perform clean-up of file systems on different environments.
  • Ability to create and execute effective project plans with minimal direct supervision
  • 24x7 support for the servers. Rotating on call pager responsibilities for production environment.
  • Experience in setting up a RAID and troubleshooting the issues on Solaris and Red HatLinux.

Core competencies

  • Red Hat Enterprise Linux system administration (RHEL 5,6)
  • Solaris system administration (Solaris 9,10)
  • Veritas Volume Manager(Vxvm)
  • Veritas Cluster Server (VCS)
  • Shell and Python scripting
  • Version Control - GIT
  • Devops Tools for Configuration Management: Ansible and Puppet.
  • Devops Tools for Continuous Delivery: Jenkins
  • Network & Systems Management.
  • Disaster Recovery/Incident Response
  • End-User/Customer Support

TECHNICAL SKILLS

Operating Systems: LinuxRed Hat 5.x, 6.x 7.x, SUSE 10, 11, 12, IBM AIX 6.1, 5L, SunSolaris, Windows, VMware ESX/ESXi

Hardware: Sun Fire Sun Enterprise, Sun Fire, Sun Enterprise T series, M series, Sun Blade, HP-9000K, L, N Servers, Server, IBM RS/ M80, P series IBMHP/Dell Blade Server

Storage Systems: Solaris Volume Manager, Veritas Volume Manager, Logical Volume Manager

Database: Oracle, DB2, and MySQL

Web application: Apache Server, Tomcat … JBoss 4/5/6, Web Sphere Application Server 5.x,6.x, 7.x, 8.x, Web Logic Server, HTML, DHTML, XML

Scripting language: Bash Shell, Korn Shell, and Python scripting

Monitoring Tools: JIRA, Tivoli, BMC patrol

PROFESSIONAL EXPERIENCE

Confidential, Wayne, PA

Senior Systems Administrator

RESPONSIBILITIES:

  • Develop and maintain cooperative and collaborative relationships with networking, storage, software development, and project management teams
  • Monitor production systems, applications and network performance through the use of various Network Management and Application Monitoring Tools
  • Perform Moves, Adds, Changes, Deletes (MACD) for the systems/servers supporting all platforms and apps as they relate to Linux servers .
  • Develop tools/scripts to automate integration with other IT tools in support of accurate asset management, cyber reporting capabilities and to manage licenses.
  • Work with software developers and Quality Assurance to seamlessly migrate applications from development to QA and production
  • Vulnerability (Open SSL, Meltdown&Spectre) and Operating system Patching, such as using Ansible and manual procedures.
  • Security and Compliance remediation from Operating system stand point.
  • Working closely with other IT departments to help determine and implement agent deployment projects such as Armor, SSSD and Splunk .

Environment: Red Hat Enterprise Linux - Versions 5,6 and 7, Solaris 9,10

Confidential, New York, NY

Senior Linux Administrator

RESPONSIBILITIES:

  • Responsibilities will include building, installing, and configuration of Linux based servers, deploying and testing OS, virus updates, baselines and disk imaging, patches and performance tuning.
  • Written and Implemented Shell scripts for automation of regular tasks (backups, purge logs).
  • Experience on Hardware technology like IBM, Dell and IBM blade Severs.
  • Troubleshoot Linux server and OS issues. Independently utilizes all available resources (knowledge bases, online resources, etc.) to ensure timely resolution of server issues.
  • Develops operating procedures for system administration activities including system monitoring, performance tuning, backup/recovery, server architecture design, and system maintenance.
  • Performs regular system maintenance, hardware and software upgrades, server migrations and performance tuning.
  • Strong customer/client focus with the ability to provide a superior customer/client experience and build long-term relationships.
  • Ability to work autonomously and as a member of a team.
  • Maintain data files and monitors system configuration to ensure data integrity.
  • Provide the expertise to diagnose and remediate server, network and end user issues that are escalated by other members of the Remote Support delivery team.

Environment: Red Hat Enterprise Linux - Versions 5,6 and 7, Solaris 9,10

Confidential, Buffalo, New Jersey

Senior Technical Specialist

Responsibilities:

  • Key member in completing Critical Vulnerability patching like Open SSL, Shell Shock, Ghost and Leap
  • Shared some best practices using Shell Scripting for pre and post patching activities .
  • Key member in completing HBA card replacement projects.
  • RPM and YUM package installations, patch and other server management.
  • Creating new file systems, monitoring disk usage, checking and backup of log files administration and monitoring the disk based file system.
  • Kernel patching and patch up-gradation for vulnerabilities onLinuxservers.
  • Pilot Team member in doing a POC and setting up Ansible configuration tool .
  • Performed OS upgrades as and when required.Backing up and restoring files across the network.
  • Automation of Snapshot removal from Vmware console using Vmware modules through Python.
  • Working in AWS Cloud Environment setting up EC2 instances and Storage service S3.
  • Installing Red HatLinuxusing Kickstart and applying security policies for hardening the server based on the company policies.
  • Performed Red HatLinuxkernel, memory upgrades and undertook Red hatLinuxKick start installations. Attended the ITIL training and implemented in projects
  • Performed daily backups, restoration of data as per requests from developers using Veritas Net Backup.
  • Provided Technical assistance to the team as on call support during weekends.

Confidential

Senior Technical Analyst

Responsibilities:

  • Providing RIM (Remote Infrastructure management) Support to 3500 servers in North America.
  • Maintaining all the servers (Entry level-Midrange-High-end)
  • Providing the support for Solaris, Veritas Volume Manager and Clusters.
  • Working as on-call admin to resolve USER raised and AUTO generated Incidents on production and development server issues
  • I have working experience on critical issues like Server down, hardware failure, NIC issues, mount problems, disk failures, NFS issues and performance issues
  • Monitor the SUN/Linux servers to free up disk space by removing unnecessary files.
  • Analyze and diagnosis system failures recover and restore operating systems and file systems.
  • I have working experience on ALOM consoles, HP & IBM Blades for performing administrative tasks like hardware replacements, analyzing console logs and performing server reboots etc.
  • As a part of day to day tasks, we deal with work orders (user requests) which include adding new storage lunes to the server, creating new file systems, disk partitioning, package installations and file/folder access requests
  • Handling Crisis calls and assisting for production issues and Vendor escalations for any hardware replacements and for analyzing core dumps etc.
  • Co-ordination with the applications and database support for the productionissues.
  • Primarily application support, configure changes, troubleshooting server issues for QA, monitoring issues through systems like JIRA.
  • I have working experience on installing, configuring and managing VERITAS volume manager
  • Working experience on VERITAS Cluster server administration.

Confidential

Systems Engineer

RESPONSIBILITIES:

  • Troubleshooting of hardware and OS related problems.
  • Performed hardware upgrades when requested. Update Firmware and Compaq agents and drivers.
  • Planning and implementation of DNS and Active Directory, Troubleshooting TCP/IP and Name Resolution.
  • Documented the LAN, WAN implementation and ongoing activities.
  • Administration of Windows NT/2000 Active Directory.
  • Testing of security patches on Windows NT, 2000, XP Desktops as per test cases for application and OS compatibility.
  • Network printer management
  • PC assembly, hardware repairs and troubleshooting
  • Installing of leased line modems (Internal, External)

Environment: Windows 2003, Dell power-edge Servers 2950, Cisco routers and Switches. Dell Desktops and LAN maintenance.

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