Systems Administrator 4

RPMGlobal; Bethesda (MD); Hybrid; USD 120,000 - 160,000; Full time

Job summary

RPMGlobal is seeking a Systems Administrator 4 to support the OSINT Integration Center under the DOMEX Technology Platform. The role focuses on Linux/Windows administration, performance optimization, and user support in a high-security environment.

Responsibilities include building and hardening systems, deploying Kubernetes ecosystems, scripting for automation, and managing AWS resources, with rotation coverage for the service desk.

Qualifications

• Experience administering Linux including RHEL/CentOS and Ubuntu.
• Strong scripting skills in Python and Bash.
• Active TS/SCI with ability to obtain a CI Polygraph.
• Ability to work independently and in a team.
• Experience with Agile project management and security requirements derivation.
• Experience with air-gapped environments.

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 on a rotational basis.

Skills

Scripting

Python

Bash

Strong communication

Independent work

Agile project management

Education

Bachelor's degree

Master's degree

PhD

Tools

Kubernetes

Rancher

Helm

AWS

Salt

Ansible

GitLab

Jenkins

ArgoCD

CloudFormation

ELK stack

Active Directory (Linux)

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.