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HPC Linux Administrator NB50591231
Oak Ridge National Laboratory
Oak Ridge National Laboratory

Job Location: Oak Ridge, TN

The National Center for Computational Sciences (NCCS) at Oak Ridge National Lab (ORNL), which hosts several of the worlds most powerful computer systems, is seeking highly qualified individualsto play a key role in improving the security, performance, and reliability of the NCCS computing infrastructure. This includes supporting one of the fastest supercomputers in the world, Titan. Titan is one of the scientific research community's most powerful computational tools for exploring solutions to some of today's most challenging problems. The candidate will work in the Infrastructure team within the HPC Operations group to support all activities of the supercomputer center.

Major Duties/Responsibilities:
  • Work with the team to define and implement best practices and standards within the organization
  • Automate systems administration tasks utilizing open source configuration management tools
  • Tune operating systems and applications to increase performance and reliability of services
  • Diagnose system operational problems quickly and effectively
  • Document system administration procedures for routine and complex tasks
  • Participate in an on-call rotation providing 24-hour, 7-day support and off-hours maintenance windows
  • Coordinate with vendors to resolve hardware and software problems

    Qualifications Required:
    Basic Qualifications:The successful candidate will have a Bachelors Degree in computer science or closely related field and 2-4 years of relevant experience. An equivalent combination of education and networking experience will be considered.
  • Excellent interpersonal/communication skills, and the ability to work as part of a team
  • Strong working knowledge of Unix system fundamentals and common network protocols
  • Minimum of 2 years of experience managing Linux/UNIX operating systems in a heterogeneous environment.
  • Solid understanding of networked computing environment concepts
  • Ability to develop and maintain programs and scripts that aid in the operation and automation of administrative tasks using various shell and scripting languages (bash and Python are our tools of choice)
  • Ability to identify requirements and todefine, plan, and implement requisite solutions
  • Ability to plan, organize, prioritize tasks, and complete assigned projects with minimal supervision
  • This position requires the ability to obtain and maintain a clearance from the Department of EnergyPreferred Qualifications:
  • Experience with continuous integration and continuous deployment software methodologies and how they apply to systems engineering
  • An understanding of code review and familiarity with tools like GitHub and GitLab
  • Experience using tools such as Grafana and Nagios to monitor systems, metrics, and create dashboards
  • Experience designing and implement highly-available systems/services
  • Experience participating in an open source community with patches accepted upstream
  • Experience with Python, our systems language of choice
  • Experience deploying and maintaining automated configuration management software such as Puppet
  • Experience building custom packages for RHEL/CentOS using RPM
  • Experience deploying and maintaining virtualized environments using VMWare
  • Experience installing, maintaining and troubleshooting MySQL, Apache, FlexLM, Postfix, OpenLDAP, RT, NetApp filers, VMware
  • Experience implementing systems-level security technologies like SELinux and following security best-practicesSpecial Requirement:This position requires the ability to obtain and maintain a clearance from the Department of Energy. As such, this position is a Workplace Substance Abuse program (WSAP) testing designed position which requires passing a pre-placement drug test and participation in an ongoing random drug testing program in which employees are subject to being randomly selected for testing. The occupant of this position will also be subject to an ongoing requirement to report to ORNL any drug-related arrest or conviction or receipt of a positive drug test result.ORNL is an equal opportunity employer. All qualified applicants, including individuals with disabilities and protected veterans, are encouraged to apply.

    Oak Ridge National Laboratory

    ORNL is an equal opportunity employer. All qualified applicants, including individuals with disabilities and protected veterans, are encouraged to apply. UT-Battelle is an E-verify Employer.
    See all jobs in Oak Ridge TN
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