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Redhat Linux Systems Administrator

Company: NTT Data Inc
Location: Irving
Posted on: June 14, 2019

Job Description:

Description

Key Skills Required:
Deep understanding of the Linux boot process and architecture of both init-v and systemd type systems and how to diagnose and fix servers that won't boot properly
Understanding of how CPU and Memory and swap is used in the OS as well as at a cluster level and how to use tools to measure and interpret within the OS
Proficient in TCP/IP and ability to recognize when there are networking or DNS issues affecting the servers performance as well as run network traces on the OS and measure packet flow, port communication etc
Has experience with Bash, Python, or Perl and ability to create and utilize scripts to complete tasks on large groups of servers

Experience Required
5+ year experience with RHEL administration and support in 1000+ server environment. RCHE level knowledge preferred
3+ year experience working with one or more scripting languages (e.g Python, Bash, Ruby, Perl, Powershell)
3+ year experience administering and supporting a large high availability clustered environment with Vmware

Key Responsibilities:

Locate and interpret the various log and configuration files in RHEL6/7 to know when something is wrong and needs to be corrected as well as utilize various reporting OS reporting tools to diagnose and fix (sar, top, vmstat ,netstat ,iostat etc)
Identify and fix issues related to storage both on the OS and at the Vmware cluster level including determining issues with mount points, slowness or communication issues with storage including LVM, NFS, Samba, filesystem corruption
Utilize experience with VMware and using vCenter and vRops to analyze infrastructure issues at the cluster, hosts and individual vm layer including generating meaningful reports to identify contention issues that could negatively affect VM performance
Recognize processes running that could be causing the server to hang or perform slow and ability to interpret and resolve
Identify and communicate preventative measures to reduce future incidents
Create and maintain technical written documentation related to architecture changes, troubleshooting both OS (Linux and/or Windows) and Infrastructure (vCenter)

The Company is an equal opportunity employer and makes employment decisions on the basis of merit and business needs. The Company will consider all qualified applicants for employment without regard to race, color, religious creed, citizenship, national origin, ancestry, age, sex, sexual orientation, genetic information, physical or mental disability, veteran or marital status, or any other class protected by law. To comply with applicable laws ensuring equal employment opportunities to qualified individuals with a disability, the Company will make reasonable accommodations for the known physical or mental limitations of an otherwise qualified individual with a disability who is an applicant or an employee unless undue hardship to the Company would result.

Keywords: NTT Data Inc, Irving , Redhat Linux Systems Administrator, IT / Software / Systems , Irving, Texas

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