Senior Linux RHEL Engineer

1 day ago

Alexandria VA United States RMantra Solutions Full time
  • Work Schedule : 100% Onsite
  • Clearance: TS/SCI
  • Certification: Security+ CE

The candidate should be a seasoned, self-motivated professional with at least 10 years of hands-on engineering and administration experience in virtualized desktop environments supporting the federal government.

Primary Responsibilities
  • Transition environment to a LDAP/AD authentication environment using vendor best practices.
  • Establish YUM repositories for centralized access across the environment to streamline system patching and application installations and upgrades.
  • Provide direction and guidance to junior members of the team to promote upward mobility within the team.
  • Establish system policies and standards that ensure consistent implementation of systems across the environment that can be maintained by members of the NOC.
  • Design, implement, and maintain Linux-based server environments, ensuring scalability, security, and high availability.
  • Design, implement, and maintain cloud-based solutions on platforms such as AWS, Azure, or GCP.
  • Perform system administration tasks, including installation, configuration, troubleshooting, and patch management of Linux servers.
  • Monitor system performance and implement optimizations to ensure optimal resource utilization.
  • Implement and enforce security best practices across the Linux environment in line with government standards and STIG requirements.
  • Develop and implement automation scripts (Bash, Python, etc.) to streamline repetitive tasks and improve efficiency.
  • Utilize configuration management tools such as Ansible or Puppet for system automation.
  • Automate manual processes in the software development, build, and testing lifecycle to reduce human errors and improve operational efficiencies.
  • Maintain comprehensive documentation for configurations, procedures, and troubleshooting guides.
  • In-depth knowledge of Linux operating systems (e.g., Red Hat, Ubuntu, CentOS).
  • Install and maintain Linux operating systems, their updates, and install required software in cloud-based Virtual Machines (VMs) in Amazon Web Services (AWS).
  • Show a willingness and ability to learn unfamiliar software and systems to fulfill the needs of the project team.
  • In-depth Git Versioning Control understanding and ability to migrate codebase between environments for releases.
  • Experience working with JSON or YAML to write Infrastructure as Code (Terraform, Ansible).
  • Comfortable performing YUM updates, VM reboots, creating server certificates, and other common Sys Admin tasks.
  • Troubleshooting experience (VM & application logs & tracking down sources/causes of VM or application issues).
Basic Qualifications
  • Ability to obtain an Amazon System Operations certification or Amazon Developer certification within 120 days.
  • Candidate must possess an active DOD Top Secret level security clearance and be eligible to obtain and maintain a TS/SCI.
  • Will be required to obtain and maintain CI Poly after on-boarding.
  • BS and 10+ years of hands-on Systems engineering and administration experience.
  • Background in using tools like Ansible or Puppet for system automation.
  • Works independently or as part of a team.
  • Communicates with colleagues across multiple areas (project managers, technical leaders, etc.).
  • Experience working in a high op-temp, top secret environment.
Preferred Qualifications
  • Prior experience with DISA and DISA’s support to mission partners.
  • Experience with Docker/Kubernetes.
  • Has experience working with Security-Enhanced Linux (SELinux).

For more information please contact us
Or send an email to

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