System Administrator Resume Example

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Jessica Claire
, , 100 Montgomery St. 10th Floor
Home: (555) 432-1000 - Cell: - - -
Professional Summary

Hard working, dependable Linux System Administrator seeking position within a growing or strong organization today


    Operating System: Redhat/CentOS, Ubuntu and Windows
    Computer Languages: Linux scripting in bash
    Networking: NIC Bonding, DNS, FTP, SFTP, SSH, SCP, NTP, NFS, TCP/IP, LAN, WAN, Ethernet config
    Database: Installation and configuration experience in Access, Oracle, Informix, MySQL
    OS Applications: SVM, LVM, Veritas, Jumpstart, Kickstart, Active Directory, MS office suite, Sendmail, Apache, rsyslog etc.

    Hardware: HP DLs, Dell R series, etc.
    Storage: Sun SAN, HP MSA, Hitachi

    Monitoring Tools Splunk

    Virtualization: VMWare, Citrix Xen, Oracle virtualization Change Management/Ticketing: ServiceNow and ServiceDesk Plus

Work History
01/2020 to Current
System Administrator Amazon.Com, Inc. Fenton, MO,
  • Install and configure Redhat/CentOS linux on virtual environment
  • Experience in installation, configuration, support of Linux (Redhat) and Windows operating systems
  • Provide technical support for both hardware and software issues for end-users
  • Create files and directories at user and root level
  • Manage multiple operating systems and technologies like Linux, Windows and SQL database
  • Alert management from the enterprise monitoring tools, escalations from IT Service Desk
  • Extensive experience of addressing Linux systems operations center incidents, reporting, analyzing and resolving production
  • Perform incident analysis like process management, CPU and memory analysis to quickly recover from service
    interruptions, and to prevent recurring of issues
  • Filesystem management, system upgrade, software patches using yum and rpm tools
  • Experience with logical volume management (LVM), analyzing the disk usage and create disk partitions
  • Respond to high volume of support tickets reported by service desks
  • Working knowledge of virtualization (VMWare)
  • Experience in file system maintenance like responding to file system alerts, finding the file system usage and analyzing the
    highest offender and increasing file systems space
  • Managing, installing, and, upgrading software packages using YUM and RPM and creating YUM repository files for offline
  • Perform and manage system backups and replications running on 3rd party backup solutions and through local RHEL tools
    (e.g. tarball, gzip, dd etc.)
  • Work with Service Desk and other Support teams to quickly resolve high impacting incidents
  • Monitor system logs, performance monitoring and capacity planning in anticipation of system resource usage and needs
  • Monitored systems, networks and infrastructures using tools such as SiteScope, Zabbix or Nagios
  • Support other RHEL versions (5, 6 and 7) running in production and development environments
  • Setup and administer user and groups accounts along with setting permissions for users
  • Limit user account privileges by configuring sudoers
  • Performed kernel tuning based on the applications to be installed and the number of users
  • Schedule various regular, periodic, future and queue tasks by using crontab
  • Enable system logging and network logging of servers for maintenance
  • Work on shell scripts for CPU usage, Memory consumption and number of I/O to collect performance stats and
    troubleshoot issues on RHEL 5/6/7
  • Install and configure SSH key-based authentication
  • Managed break/fixes through ticketing solutions
  • Deploy and manage Linux VMs on ESXi server using vSphere client
  • Install, administer and troubleshoot NFS, DNS, and FTP servers
  • Provide ongoing support on networking services and protocols such as TCP/IP, NIS, DNS, NFS, LDAP, FTP, SSH, SNMP, SSL,
    and HTTP
  • Implementation and Integration of NTP for time synchronization (ntp and chronyd)
  • Perform server refresh and maintain server integrity by configuring firewall rules for network communication
  • Configure dynamic and static network settings for IPv4 and filter packets
  • Install, configure and manage Apache (HTTPD) on Linux production servers
  • Perform error analysis and recovery, documentation and procedures required for reference
  • Provide 24x7 on call duties on a rotation basis with the other system engineers as part of incident management
  • Participate in Change Control Management and documentation of the procedures
  • Experience in decommissioning of servers and monitoring inventory
10/2018 to 12/2019
Linux System Administrator Concurrent Computer Corporation Duluth, GA,
  • Install and configured RAID 0/1/5 at hardware level
  • Coordinate with Application support, Server Operations, Network Operations, Middleware and Database Support teams in
    troubleshooting production issues
  • Communicate system status and coordinate maintenance activities
  • Experience working with SAN storage setup and configurations (Hitachi)
  • Maintain systems by keeping them compliant with company standards for optimum performance and capacity utilization
  • Report issues and communicated effectively with the IT management
  • Perform data center operations task following user guides, operational processes and SOPs
  • User files permission management including assigning, adding and updating permissions at the file and directory level
  • Provision UNIX accounts, groups, and assignment of accounts to groups
  • Initiate and facilitate technical bridges as per businesses need for command center.
  • Use help commands for fast and efficient reference (man, whatis, -help)
  • Everyday use of filters and text processing commands (cut, sort, grep, awk, uniq, wc)
  • Keep the system secure by monitoring user activity through secure log messages and tools such as who, last, etc.
  • System management using commands (top, df, dmesg, iostat 1, netstat)
  • Setup aliases for ease of management
  • Manage OS network (ping, ifconfig, netstat, tcpdump, networking config files)
  • Build and manage development and QA environment on cloud services (AWS and Azure)
  • Troubleshoot issues with VMs running on VMware ESXi 5.5 and 6.0.
  • Troubleshoot and resolve day to day issues using Linux native tools and analytical skills
  • Install, configure and maintain Windows OS versions 2012 R2 (or later), including OS patching, drivers and hardware
  • Demonstrate engineering excellence in the design, systems management, automation, patching, deployment,
    troubleshooting, and performance tuning for Linux based operating systems
  • Recommend and implement process improvements and automation to maximize system availability and consistency
  • Set strategic direction and manage implementation.
  • Provide accurate project estimates, while meeting project deadlines
  • Provide timely, creative and alternative solutions to meet business needs
  • Provide significant weeknight and weekend support
  • Display exceptional people skills and maintained calm demeanor during every interaction
09/2017 to 09/2018
Help Desk Technician Boston Dynamics, Inc. Waltham, MA,
  • Assisted customers having hardware, software and networking issues.
  • Assisted business customers with LAN /WAN / Static Ip configuration issues.
  • Troubleshoot customers issues with home health check / node health check tools for possible outages.
  • Troubleshoot any problems or issues that arise with Windows desktops/laptops from the network drop to the
    desktop/laptop prioritizing systems infected with viruses
  • Maintained updated knowledge of company products and services to better provide customer support and service
  • Load and reload, configure, and update anti-virus and virus scan software on desktop/laptop as required
  • Gathered customer and technology information to determine technical support level; escalated issues to the appropriate
    department as necessary.
  • Assisted team members and provide support and solutions to customer queries to meet company objectives.
  • Worked and Assisted various internal projects for company
  • Break-Fix hardware and software related issues on desktops/laptops workstation and printers.
  • Configured and deploy desktops/laptops for new hires and IMAC service for office moves.
  • Created spreadsheet reports regularly as required by manager for asset management, asset information of new hires’
    devices, etc.
  • Assisted regional IT teams with Smart Hands support in the facilities such as IDF/MDF closets, Data centers and other
    related server rooms.
  • Imaging and re-imaging desktops/laptops using USB/network.
  • Provide deskside support in person, on the phone and remote using LogMeIn, Bomgar and Skype.
  • Utilized Active Directory to add/remove users, unlock accounts and reset passwords
  • Resolve tickets and request in in timely manner
  • Set up conference room for presentations, physical Video and Audio Conferencing for end users.
  • Ordered and replaced necessary parts for user’s machines to be in the correct Operational Unit
  • Sustain network integrity, server deployment and security
  • Actively participate in process improvement initiatives
  • Work cross functionally to develop, implement and support new end user solutions
  • Assist in migration existing services from physical data centers to AWS cloud
Expected in 05/2017
Master of Science: Computer And Information Sciences
Silicon Valley University - San Jose, CA,

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Resume Overview

School Attended
  • Silicon Valley University
Job Titles Held:
  • System Administrator
  • Linux System Administrator
  • Help Desk Technician
  • Master of Science

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