Mid Level Linux Administrator

Integration Innovation•Huntsville, AL

17d

About The Position

i3 is seeking a Mid-Level Linux Systems Administrator to support an Army Contract. The Mid-Level Linux Systems Administrator will provide technical expertise supporting information system components, infrastructure integration and maintenance. Candidates for this position must possess, at a minimum, the ability to obtain and maintain a United States SECRET level security clearance.

Requirements

Bachelor’s degree in Information Technology, Computer Science, or related field; or equivalent experience.
3–5 years of hands-on experience in Linux system administration in an enterprise or government environment.
Must possess or obtain within six months a Linux computing environment training certificate in compliance with DoD 8140.
Must have DoD 8140 IA Certification (Security+ CE).
Current Secret clearance or the ability to obtain and maintain.
Requires strong Linux (RHEL, CentOS) Operating System and troubleshooting skills.
Working knowledge of RMF, NIST 800-53, and other federal cybersecurity frameworks.
Practical experience applying DISA STIGs and performing system hardening.
Strong documentation, analytical, and problem-solving skills.
Ability to work independently and manage multiple priorities in a dynamic environment.
Prior experience supporting IT systems in a DoD or other government-regulated environment.

Nice To Haves

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.

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.