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Tenable Administrator (Level 3)

Suitland, Maryland, United States

 

Tenable Administrator (Level 3)

G2IT is seeking an experienced Tenable Administrator (Level 3) to support enterprise vulnerability management and cybersecurity operations within a DoD environment. The ideal candidate will have extensive hands-on experience administering Tenable SecurityCenter, Nessus Scanner, Red Hat Enterprise Linux (RHEL), and enterprise vulnerability scanning solutions.

Key Responsibilities

  • Install, configure, administer, maintain, and troubleshoot Tenable SecurityCenter and Nessus Scanner environments.
  • Develop, configure, test, and deploy enterprise-level vulnerability, compliance, and discovery scan policies.
  • Schedule and maintain recurring vulnerability and compliance scans using Tenable solutions.
  • Administer and maintain applications within Red Hat Enterprise Linux (RHEL) environments.
  • Develop and troubleshoot Linux shell scripts used for system and application administration.
  • Monitor and optimize Tenable infrastructure to ensure availability, performance, and security.
  • Support vulnerability identification, assessment, reporting, and remediation activities.
  • Apply Security Technical Implementation Guides (STIGs) to harden Linux operating systems.
  • Support servers hosted within VMware, AWS, Azure, and other virtual or cloud environments.
  • Support Public Key Infrastructure (PKI) requirements and secure system communications.
  • Troubleshoot Tenable, Nessus, Linux, network, and application-related issues.
  • Maintain technical documentation, configuration procedures, scan policies, and system administration records.
  • Communicate vulnerability findings and technical issues effectively to technical teams, leadership, and mission stakeholders.

Required Qualifications

  • Must hold an active Top Secret (TS) security clearance and be eligible for TS/SCI access.
  • 5–7 years of experience in information systems with a focus on application administration.
  • 3–5 years of direct experience installing, maintaining, and administering Tenable SecurityCenter, Nessus Scanner, and related software components.
  • 3–5 years of experience developing, configuring, and maintaining recurring discovery, compliance, and vulnerability scans using Tenable.
  • 3–5 years of application administration and maintenance experience within a RHEL environment.
  • Expert-level knowledge of installing and administering Tenable SecurityCenter in an enterprise environment.
  • Experience developing, configuring, testing, and deploying enterprise-level scan policies.
  • Strong experience with Red Hat Enterprise Linux (RHEL) and multiple RHEL OS releases.
  • Experience developing and debugging Linux shell scripts.
  • Experience hardening Linux systems using Security Technical Implementation Guides (STIGs).
  • Working knowledge of VMware and cloud environments such as AWS and/or Azure.
  • Working knowledge of Public Key Infrastructure (PKI).
  • Strong troubleshooting and problem-solving skills.
  • Effective written and verbal communication skills.

Certification Requirements

  • Must possess at least one Linux operating system administrator certification.

 

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