Linux Systems Administrator

Overview:

i3 is seeking a Linux Systems Administrator to support an Army Contract. The Linux Systems Administrator will provide technical expertise supporting information system components, infrastructure integration and maintenance.

Responsibilities:

• Build, configure, and maintain standardized Linux Operating Systems (such as RHEL 9) in various technical use cases.
• Build and maintain virtual machine Linux golden images from source code management.
• Integrate Linux operating systems with Active Directory environments utilizing tools such as SSSD.
• Maintain software repository mirrors utilizing Red Hat Satellite servers and custom scripts.
• Integrate multifactor authentication, CAC/smartcard PKI and certificate management in a mixed Windows/Linux environment.
• Work with teammates on an agile project with a focus on providing a secure, versatile, efficient, reproduceable, and highly scalable computing environment.
• Maintain system configurations with Infrastructure as Code (IaC) in git repositories.
• Perform Linux system configuration, patching, and vulnerability remediation utilizing Ansible, Terraform, Chef, GitLab, or other automation tools.
• Work with teammates to ensure satisfactory DevSecOps CI/CD pipeline operation on OpenShift clusters and other Linux systems.
• Deploy and maintain OpenShift cluster nodes on bare-metal and cloud infrastructure.
• Apply security controls as defined in DISA’s Security Technical implementation Guides (STIGs).
• Assist with implementation of Risk Management Framework (RMF) 2.0 Continuous monitoring tools and processes.
• Support periodic Independent Security Assessments (previously known as Security Control Assessor - Validation or SCA-V).
• Implement security configurations derived from zero-trust principles.
• Create, manage, and maintain network storage servers.
• Maintain and produce documentation in markdown and other formats as required.
• Assist Cybersecurity team with developing Risk Management Framework (RMF) accreditation documentation, SOPs, policies, and work instructions as needed.
• Continuously improve your skills and the project by researching, training on, assessing, and implementing new technologies and processes.

Qualifications:

• Bachelor's degree in Information Technology, Cybersecurity, Data Science, Information Systems, or Computer Science and 6 years’ experience or 10+ years equivalent experience.
• Must meet DoD 8140 Intermediate System Administrator qualifications, such as holding a Security+, Cloud+, GICSP, SSCP, or GSEC certification (or higher-level applicable certification).
• Must either possess or obtain a Linux computing environment training certificate in compliance with DoD 8140. Must be willing to attain Linux+ certification within 6 months.
• Ability to work with little or no direct supervision and in a team environment.
• Must have excellent customer service skills.
• Requires strong Linux (RHEL, CentOS) Operating System and troubleshooting skills.
• Strong DoD Security practices and knowledge.
• Working experience with Linux automation tools is a plus.
• Working experience with infrastructure as code and source code management is a plus.
• OpenShift or Kubernetes experience is a plus.
• AWS, Azure, or GCP cloud computing experience is a plus.
• Ability to obtain and maintain a full Secret clearance. Active Secret clearance preferred.
• U.S. citizenship is required.

About i3:

We have established a broad offering of products and capabilities collectively providing decades of experience supporting the full complement of DoD military services, Missile Defense Agency, National Aeronautics and Space Administration, and a variety of other Government organizations and private industry customers.

Perks of being a team member owner include:

• Long-term financial security
• Higher job satisfaction
• Greater job security
• Personal and professional growth
• Great company culture

Other outstanding benefits:

• Excellent insurance coverage
• 401(k) match
• Generous PTO
• Health and wellness incentives
• Tuition and certification reimbursement
• Countless opportunities to give back to the community through i3 Cares

We work hard. We compete hard. We play hard. Apply now to join us!