Join our team as a Linux Systems Administrator, where you will support and manage a diverse mix of workstations, servers, and high-performance computing (HPC) clusters. We are looking for a skilled professional with a solid foundation in Linux administration and a collaborative approach to problem-solving.

• Securely deploy and manage Linux workstations, servers, and HPC clusters.
• Administer local and remote filesystems efficiently.
• Automate tasks using shell scripting and Python.
• Manage security features, including firewalls and SELinux.
• Work with Ansible for system configuration and automation.
• Deploy and manage containerized environments using Docker or Podman.
• Maintain and optimize HPC clusters with tools such as Bright, Slurm, and xCAT.
• Configure and manage Linux networking and associated services.
• Ensure adherence to industry best practices, company and agency policies, and regulatory requirements.
• Create and maintain thorough documentation of plans, system configurations, and operational processes and procedures.

At COLSA, people are our most valuable resource and centered at our core value. We invite you to unite your talents with opportunity and be a part of our “Family of Professionals! Learn about our employee-centric culture and benefits here.

Required Qualifications

• Bachelor's degree in a STEM field or equivalent professional experience.
• Minimum of 5 to 12 years of related experience
• Active DoD Top Secret Clearance with SCI eligibility
• Must be able to pass the CI polygraph within 180 days of hire
• CompTIA Security+ CE, ISC2 SSCP, or equivalent baseline security certification.
• Must be able to obtain and maintain Special Access Program (SAP) eligibility and maintain program accesses as required
• Strong experience with Linux system administration.
• Ability to troubleshoot and resolve hardware and software issues.
• Knowledge of security best practices for Linux environments.
• Strong analytical and critical thinking skills.
• Ability to work independently and collaboratively in a team environment.
• U.S. Citizenship Required

Preferred Qualifications

• RHCSA, Linux+, or equivalent certification.
• Experience with automation tools (Ansible, shell scripting, Python, etc.).
• Familiarity with container technologies like Docker, Podman, and Apptainer.
• Experience managing HPC clusters using Bright, Slurm, and/or xCAT.
• Strong networking experience in Linux environments.
• Cross-OS administration experience with Windows.
• Virtualization experience with VMWare or Nutanix.
• Active TS//SCI clearance with a current CI Scope Polygraph.

Applicant selected will be subject to a government security investigation and must meet eligibility requirements for access to classified information. COLSA Corporation is an Equal Opportunity Employer, Minorities/Females/Veterans/Disabled. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, or national origin.