Systems Administrator 4

RPMGlobal; Bethesda (MD); Hybrid; USD 120,000 - 150,000; Full time

Job summary

RPMGlobal seeks a Systems Administrator 4 to support the OSINT Integration Center under the DOMEX Technology Platform contract, focusing on Linux and Windows administration, performance optimization, and user support.

The role includes building/hardening servers, implementing DISA STIGs, managing Kubernetes ecosystems, scripting automation, and AWS cloud management, with rotating service desk coverage.

Qualifications

• Experience administering Linux environments (RHEL/CentOS, Ubuntu).
• Experience with Windows system administration and patching.
• Strong scripting skills in Python and Bash/PowerShell.
• Experience with automation tools (Ansible, Salt) and IaC.
• Experience with AWS cloud environments and virtualization.
• Ability to obtain Privileged User Account certification.
• Excellent communication and ability to work independently.
• Experience in air-gapped environments.
• Active TS/SCI with CI Polygraph.

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.

Skills

Linux systems administration

Windows systems administration

Python scripting

Bash scripting

PowerShell

Kubernetes

Rancher

Helm

Ansible

Salt

AWS

DISA STIG compliance

Communication skills

Team collaboration

Education

Bachelor's degree with 10+ years of experience

Masters' Degree with 10 years experience

PhD with 10 years of experience

Tools

AWS CloudFormation

ArgoCD

Jenkins

GitLab

ELK stack

Active Directory integration with Linux

Air-gapped environments experience

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.