Systems Administrator 4

RPMGlobal; Bethesda, Northern (MD, KY); Hybrid; USD 110,000 - 160,000; Full time

Job summary

RPMGlobal in Bethesda, MD is seeking a Systems Administrator 4 to support the OSINT Integration Center under the DOMEX Technology Platform. The role focuses on Linux and Windows system administration, performance optimization, and user support.

You will implement DISA STIGs, manage server builds for virtual and physical environments, and deploy Kubernetes, Rancher, and Helm. Scripting with Python, Bash, and PowerShell, plus Salt/Ansible for automation, and AWS cloud administration are core parts

Qualifications

• Expertise in Linux systems administration (RHEL/CentOS, Ubuntu).
• Windows administration experience emphasized.
• Implement DISA STIG compliance across systems and networks.
• Proficient in Python, Bash, and PowerShell scripting.
• Experience with AWS, Kubernetes, Rancher, and IaC tools.
• Ability to work independently and in teams; strong communication.
• Experience working in air-gapped environments; security clearance readiness.
• Familiarity with Agile project management and security requirements derivation.

Responsibilities

• Perform Linux and Windows builds, installations, configurations, administration, and troubleshooting.
• Implement and enforce DISA STIG across systems and networks.
• Develop and maintain server builds for virtual and physical environments.
• Manage and deploy Kubernetes, Rancher, and Helm.
• Develop scripts for patching, configuration, and automation using Python, Bash, or PowerShell.
• Use Salt and Ansible for infrastructure automation.
• Administer AWS cloud environments including provisioning, monitoring, and optimization.
• Provide service desk coverage between 6 AM and 6 PM, Monday through Friday, on a rotational basis.

Skills

Linux system administration

Windows system administration

Python scripting

Bash scripting

PowerShell scripting

DISA STIG compliance

Agile project management

Communication skills

Air-gapped environment

Team collaboration

Education

Bachelor's degree with 10 years experience

Master's degree with 10 years experience

PhD with 10 years experience

Tools

Kubernetes

Rancher

Helm

AWS

SaltStack

Ansible

GitLab

Job description

Position Summary

Support the OSINT Integration Center under the DOMEX Technology Platform contract as a Systems Administrator 4 focused on Linux and Windows systems administration, performance optimization, and user support.

Essential Duties and Responsibilities

• Perform Linux and Windows builds, installations, configurations, administration, and troubleshooting.


• Implement and enforce DISA STIG compliance across systems and networks.


• Develop and maintain server builds for virtual and physical environments.


• Manage and deploy Kubernetes, Rancher, and Helm.


• Develop scripts for patching, configuration, and automation using Python, Bash, or PowerShell.


• Use Salt and Ansible for infrastructure automation.


• Administer AWS cloud environments including provisioning, monitoring, and optimization.


• Provide service desk coverage between 6 AM and 6 PM, Monday through Friday, on a rotational basis.

Required Qualifications

• Active TS/SCI with ability to obtain a CI Polygraph.


• Bachelor's degree with a minimum of ten years of experience in the category field.


• Expertise in Linux systems administration, including RHEL/CentOS and Ubuntu.


• Experience with patching and virtual server builds.


• Familiarity with Agile project management and security requirements derivation.


• Strong scripting skills in Python and Bash.


• Excellent verbal and written communication skills.


• Ability to work independently and collaboratively in a team environment.


• Experience working in air-gapped environments.


• Ability to obtain Privileged User Account certification by the Government.

Preferred Qualifications

• Experience with Kubernetes, Rancher, and infrastructure-as-code tools such as AWS CloudFormation.


• Familiarity with ArgoCD, Jenkins, and GitLab.


• Knowledge of the ELK stack and beats.


• Experience with Active Directory in a Linux environment.


• Background maintaining AI/ML environments and large data storage solutions.

Required Education and Experience Equivalency

• Bachelors' Degree with 10 years of experience.


• Masters' Degree with 10 years of experience.


• PhD with 10 years of experience.

RequiredCertifications

• None specified.

Required Security Clearance

• Active TS/SCI with ability to obtain a CI Polygraph.