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Linux System Administrator Resume

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SUMMARY:

Offering 6 years of career experience with a strong Networking and System Administration (Cloud Computing) background. Quickly learn and master new technology with ease and effortlessly adapts to new situations; equally successful in both team and self - directed settings and proficient in a range of computer systems, tools and testing methodologies.

KNOWLEDGE:

  • Cloud support
  • Manage Security for servers and users.
  • Storage/Installation: LVM, YUM, Filesystem, Rhel Daemons Httpd, Crond, Chronyd
  • User Management: LDAP, Autofs
  • Scripting: Scheduling automated jobs to run daily and at specific times.
  • Open Ports using IPTABLES tool
  • Implement critical system patches with YUM and RPM
  • Configure Permissions to Directories and filesystems
  • Setting up Administrator and Service accounts
  • Use VMWARE to deploy, create snapshots, clones, and backups up servers before maintenance
  • Performs set up and take down on a variety of systems and hardware components
  • Configuration and troubleshooting knowledge of Cisco Routers and Switches.
  • Cisco Routing and Switching
  • Understanding of the OSI Seven Layer Model, TCP/IP Four layer and how network behaves at the different levels of the OSI and TCP/IP model
  • Knowledge of networking principles including TCP/IP protocols, IPv4, IPv6 and Subnetting.
  • Configuration and Troubleshooting of RIP, RIPv2, EIGRP, OSPF and BGP routing protocols
  • Understanding of Servers and Firewalls.
  • Awareness of network security issues.
  • Familiar with router and switch hardware including hardware redundancy applications.

TECHNICAL SKILLS:

Hardware Platforms: Dell, HP, IBM, Cisco Routers and Switches, VADATA Bricks and Spines

Network Operating Systems: Microsoft Windows Server

PC Client O/S: Windows 7/8/10 Mac iOS

PC Client Software: MS Office, Outlook

WORK EXPERIENCE:

Confidential

Linux System Administrator

Responsibilities:

  • Troubleshoot Linux servers via CLI by issuing commands in the shell (Redhat, CentOS)
  • Maintaining and updating servers via repos using YUM
  • Manages a ticketing queue of 1000 tickets and diagnosing issues to determine cause and assigning to technicians and providing guidance for a resolution.
  • Train technicians at level 1 and assisting them to resolve various level 1 issues.
  • Configure and Troubleshoot TCP/IP on multiple Linux OS servers.
  • Support the AWS cloud infrastructure including Networking equipment such as AGG, Distribution,routers, switches and DWDM gear.
  • Manages various VPC’s for multiple clients.
  • Utilizing AWS tools to verify clients instances’ health for S3, EC2 and EBS.
  • Scripting by scheduling Cron Jobs to run automatically by the hour, day, time and week.
  • Upgrading servers via FTP and maintaining functionality for efficiency.
  • Support and creates connectivity between multiple Data centers.
  • Reading and debugging System Logs on RHEL.
  • Works with Senior Dev-Ops to provide support and maintenance for clients’ database and instances.
  • Replacing Hardware and network components such as RAM, Processors, MOBO, HDD, NICs and QSFP.
  • Remoting into troubled servers to diagnose and provide a fix.
  • Using LVM to manage and provide additional Storage and Swap space for client to ensure functionality.
  • Works with our LDAP and Autofs admins to provide support for new and current LDAP users.
  • Managing server security with the use of SELINUX and IPTABLES (Firewalls) to prevent unwanted traffic in and out of the system.
  • Providing direct support for client via Phone and Chat windows to resolve their needs.

Confidential

Network Administrator

Responsibilities:

  • Lead large scale datacenter builds and network implementations for phase1 which includes setting up and configuring network devices in network rows, manage cable vendors working on multiple network racks from site to site, and various ambiguous details within work environment.
  • Work closely with Network Engineer and Technical Project Manager Teams to ensure fast and smooth rollout of new designs and remove project obstacles.
  • Troubleshoot networking, routing and inter connectivity issues, including troubleshooting of network device configuration and low to mid-level application interaction.
  • Configures and verifies network devices such as Cisco Routers and Switches, Juniper devices Accton and Quanta devices have the right configuration for their specified task and connectivity.
  • Troubleshoots network issues from Layer 1 up to eliminate and resolve issues or gather the facts when the issue is beyond my limitations before escalating to the right team for further troubleshooting.
  • Managing firewalls using IP-tables and port management.
  • Follows an automated Workflow and troubleshoots along to ensure the correct validation and handoff of a Network Rack before deadline to increase capacity and ensure customer satisfaction.
  • Ensures proper documentation is done for all devices in a rack and bridges and are uploaded to a database for referencing and inquiries companywide to aid in locating and troubleshooting problematic devices in the future.
  • Configuring and troubleshooting TCP/IP.
  • Configuring network and system services not limited to FTP, DNS, and Apache.
  • Create and/or complete scheduled Change Management events within the allotted window
  • Organized recruits’ paperwork and assigned roles and tasks in my division.
  • Conducted inspections with RDC have to keep recruits in check and in the proper uniform for the day.
  • Led my division in battle strategies and formation during sessions and competitions against other divisions.
  • Assisted RDC with drills and tasks assigned to my Division

Consulting Agent/Customer Service

Confidential

Responsibilities:

  • In charge of diagnosing, troubleshooting, and resolving a majority of the clients PC/Mac issues.
  • Also in-charge of business-driven reports that ran every morning for inventory integrity of the clients’ units.
  • Handled technical troubleshooting within an enterprise environment, including system crashes, slow-downs and data recoveries.
  • Engaged and tracked Priority 1 issues with additional responsibilities such as timely documentation, escalation, resolution and closure of trouble tickets.
  • Maintained a consistent 1-3-day turnaround time while repairing a consistent 12-14 units a day.
  • While maintaining a consistent turnaround time I was able to increase productivity by 40% and the customer satisfaction index by 25%.

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