Oak Ridge National Laboratory

IAM Linux Engineer

Oak Ridge National Laboratory$90K — $120K *
Information Technology
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's or Master's degree in Computer Science or related field with relevant experience in Linux systems administration or Identity Management.
  • 2+ years of experience for Bachelor's holders or 1+ year for Master's holders in the specified field or equivalent education/experience.
  • Excellent interpersonal and communication skills aimed at team collaboration.
  • Foundational understanding of modern authentication and authorization standards like SAML and OAuth 2.0.
  • Proficiency in Linux system fundamentals and network protocols.

Responsibilities

  • Deploy, configure, and manage HPC-scale services in a Linux environment, focusing on RedHat and Rocky.
  • Assist in the deployment, scaling, and maintenance of on-premise Kubernetes clusters.
  • Perform regular system patches, updates, and backups to maintain integrity.
  • Monitor system health and performance using Nagios and Grafana.
  • Administer RSA SecureID and PingFederate servers and support Identity Management services.
  • Deploy and manage resources within the NCCS VMware environment while automating tasks with Puppet, Terraform, and Ansible.

Benefits

  • Opportunity to work with cutting-edge HPC technology in a national lab setting.
  • Collaborative team environment with an emphasis on continuous learning.
  • Exposure to advanced identity management and security solutions.
  • Access to comprehensive training programs for professional development.
Full Job Description
Requisition Id 16484

Overview:

The High-Performance Computing Systems Section within the National Center for Computational Sciences (NCCS) is seeking an IAM Linux Engineer to join the HPC Infrastructure group. The preferred candidate will possess commensurate knowledge, skills and abilities in addition to relevant education, certifications, experience and demonstrated ability to work as a member of a team.

Major Duties/Responsibilities:

Systems Administration:
  • Deploy, configure and manage HPC-scale services in a Linux environment, primarily RedHat and Rocky
  • Assist in deploying, scaling and maintaining on-premise Kubernetes clusters
  • Perform regular patches, updates and backups
  • Monitor systems using tools like Nagios and Grafana
  • Respond to and assist in troubleshooting issues

Identity Management and Security:
  • Administration of RSA SecureID and PingFederate servers
  • Deploy, configure and support identity and access management services such as single-sign on (SSO), OAuth, two-factor auth, zero trust, etc...
  • Maintain and enable secure access for human users and automated workloads in kubernetes
  • IdM integration with user applications and Entra ID

Virtualization and Automation:
  • Deploy and manage resources in the NCCS VMware environment
  • Automate systems administration tasks using tools like Puppet, Terraform and Ansible


Basic Qualifications:
  • Bachelor's degree in computer science or closely relate field and a minimum of 2 years of experience in Linux systems administration and/or Identity Management, or a Master's Degree and a minimum of 1 year of experience in Linux systems administration and/or Identity Management.
  • An equivalent combination of education and experience will be considered.


Preferred Qualifications:
  • Excellent interpersonal/communication skills and the ability to work within a team
  • Foundational knowledge of modern authentication and authorization standards, including SAML, OAuth 2.0, OpenID Connect (OIDC), and LDAP.
  • Experience administering Kubernetes on on-premises infrastructure (K3s, RKE2, or similar)
  • Experience with GitOps tools and methodologies
  • Familiarity with managing user identities and group memberships in LDAP and Active Directory
  • Understanding of cloud-native IAM concepts (roles, policies, and service accounts) in platforms like AWS, Azure, or GCP.
  • Strong working knowledge of Linux system fundamentals and common network protocols
  • Programming and scripting skills in common languages such as Python and bash
  • Understanding of versioning and code review tools like GitHub and GitLab
  • Experience with configuration management tools such as Puppet or Ansible
  • Experience deploying and maintaining virtual environments using VMWare
  • Working knowledge of common infrastructure services such as OpenLDAP, DNS, DHCP, etc...
  • Ability to plan, prioritize and complete assigned projects with minimal supervision


Special Requirements:
  • 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 (WSAP) testing designated position. WSAP positions require passing a pre-placement drug test and participation in an ongoing random drug testing program.


This position will remain open for a minimum of 5 days after which it will close when a qualified candidate is identified and/or hired.

We accept Word (.doc, .docx), Adobe (unsecured .pdf), Rich Text Format (.rtf), and HTML (.htm, .html) up to 5MB in size. Resumes from third party vendors will not be accepted; these resumes will be deleted and the candidates submitted will not be considered for employment.

About Oak Ridge National Laboratory

Oak Ridge National Laboratory (ORNL) is a science and technology national laboratory managed for the United States Department of Energy (DOE) by UT-Battelle. ORNL is the largest science and energy national laboratory in the Department of Energy system by size and by annual budget. ORNL conducts research and development activities in a variety of scientific and technical disciplines. ORNL's scientific programs focus on materials, neutron science, energy, high-performance computing, systems biology and national security. ORNL partners with other national laboratories, universities and industry to solve complex problems and transfer knowledge and technology. ORNL is home to several of the world's most powerful supercomputers, including Summit, the world's most powerful supercomputer as of November 2018.
Learn more about Oak Ridge National Laboratory
Size
5,000 employees
Industry
Founded
1943

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