Systems Administrator (RHEL)

Uvcyber; Herndon (VA); Hybrid; USD 95,000 - 125,000; Full time

Job summary

UltraViolet Cyber, a platform-enabled unified security operations company, is seeking a RHEL system administrator to support a SOC Engineering team responsible for expanding security visibility across cloud and on‑prem environments. The role covers RHEL provisioning, patching, STIG compliance, backups, and configuring hardware and software to support new capabilities.

Ideal candidates are hands-on with SIEM platforms and enterprise RHEL deployments and SOC operations.

Qualifications

• 4+ years of hands-on experience administering and engineering RHEL servers in production environments.
• Experience with DNS, firewalls, switches, NAS, backup solutions, load balancers, and server hardware.
• Experience with patching, OS hardening, application hardening, and STIG compliance.
• Experience with automating server management tasks with Ansible, PowerShell, Bash, or Python scripts.
• Experience supporting a SOC, SIEM, or cyber defense environment
• Working knowledge of Windows administration
• US Citizenship is Required
• Active Secret Clearance is Required
• Hands-on experience administering Cisco network devices in production environments
• Experience with Git, and DevOps principles
• Familiarity with Splunk Enterprise Security, CIM, data models, and security content dependencies
• Experience with cloud infrastructure AWS, Azure, Microsoft 365, identity platforms, EDR, firewalls, and network security tools
• Familiarity with regex, JSON parsing, syslog, and API-based log collection

Responsibilities

• RHEL system provisioning and patch management in production environments.
• Maintain STIG compliance and backups for critical systems.
• Configure hardware and software to support new capabilities and deployments.
• Collaborate with SOC analysts and engineers to align telemetry ingestion with detection, monitoring and compliance.
• Support cloud and on‑prem environments and ensure secure operations.

Skills

RHEL administration

SOC operations experience

Patching & OS hardening

Scripting (Ansible, Bash, Python, PS)

SIEM experience

Windows administration

Cisco networking

Git & DevOps practices

Regex & JSON parsing

Tools

Ansible

PowerShell

Bash

Python

Splunk Enterprise Security

Cisco network devices

Git

Job description

Make a difference here.

UltraViolet Cyber is a leading platform-enabled unified security operations company providing a comprehensive suite of security operations solutions. Founded and operated by security practitioners with decades of experience, the UltraViolet Cyber security-as-code platform combines technology innovation and human expertise to make advanced real-time cybersecurity accessible for all organizations by eliminating risks of separate red and blue teams.

By creating continuously optimized identification, detection, and resilience from today’s dynamic threat landscape, UltraViolet Cyber provides both managed and custom-tailored unified security operations solutions to the Fortune 500, Federal Government, and Commercial clients. UltraViolet Cyber is headquartered in McLean, Virginia, with global offices across the U.S. and in India.

We are seeking a RHEL system administrator / infrastructure engineer to support a SOC Engineering team responsible for expanding security visibility across cloud and on-premises environments. This engineer will be responsible for RHEL system provisioning, patching, STIG compliance, backups, and configuring existing hardware and software to support new software and capabilities. The ideal candidate is a hands‑on engineer with strong SIEM platform experience and a solid understanding of enterprise RHEL deployments and an understanding of SOC operations and support.

The position requires an Active Secret Clearance and 1-2 days per week onsite in Herndon, VA.

• 4+ years of hands‑on experience administering and engineering RHEL servers in production environments
• Experience with distributed enterprise services, DNS, firewalls, switches, NAS, backup solutions, load balancers, and server hardware.
• Experience with patching, OS hardening, application hardening, and STIG compliance.
• Experience with automating server management tasks with ansible, PowerShell, Bash, or Python scripts.
• Experience supporting a SOC, SIEM, or cyber defense environment
• Working knowledge of and Windows administration
• Ability to collaborate with analysts and engineers to align telemetry inges on with detection, monitoring, and compliance requirements
• US Citizenship is Required
• Active Secret Clearance is Required
• Hands‑on experience administering Cisco network devices in production environments
• Experience with GIT, and DevOps principles
• Experience using wri ng Ansible scripts to manage RHEL hosts
• Familiarity with Splunk Enterprise Security, CIM, data models, and security content dependencies
• Experience with cloud infrastructure AWS, Azure, Microso 365, iden ty pla orms, EDR, firewalls, and network security tools
• Familiarity with regex, JSON parsing, syslog, and API-based log collection
• Hands‑on experience administering Cisco network devices in production environments
• Experience with GIT, and DevOps principles