Rising InfoSec Engineer: Vulnerability & Monitoring

Astrion; Huntsville (AL); On-site; USD 90,000 - 120,000; Full time

Job summary

Astrion is seeking an Information System Security Engineer in Huntsville, AL, onsite. The role focuses on monitoring, vulnerability management, and incident response to maintain enterprise security posture. You will work with Defender, Sentinel, and Tenable tools, coordinating remediation with admins across systems.

The ideal candidate has DoD baselines, NIST/CMMC knowledge, and a strong foundation in security principles. This full-time position requires on-site work and active clearance.

Qualifications

• Active Secret clearance required.
• Bachelor's degree in Computer Science, Information Technology, or related field (or equivalent experience).
• Knowledge of NIST 800-171 and CMMC requirements.
• Active DoD 8140 compliant baseline certification (e.g., Security+ CE, CISSP).

Responsibilities

• Monitor security alerts from Defender and Sentinel and respond accordingly.
• Conduct routine vulnerability assessments using Defender, Tenable and other tools.
• Coordinate remediation with system and application owners.
• Track remediation efforts and validate vulnerability closures.
• Assist in risk-based prioritization and KPI reporting.
• Support security monitoring, threat detection and incident response.
• Investigate suspicious activity and escalate issues as needed.
• Assist with endpoint security and security controls deployment.
• Document findings and contribute to security procedures.

Skills

Active Secret clearance

Cybersecurity fundamentals

Vulnerability management

Security monitoring

Windows security

Education

Bachelor's degree in Computer Science/Information Technology or related field

Tools

Microsoft Defender

Microsoft Sentinel

Tenable Vulnerability Management

Active Directory

Microsoft 365 Security

Job description

Astrion is seeking an Information System Security Engineer in Huntsville, AL, onsite. The role focuses on monitoring, vulnerability management, and incident response to maintain enterprise security posture. You will work with Defender, Sentinel, and Tenable tools, coordinating remediation with admins across systems.

The ideal candidate has DoD baselines, NIST/CMMC knowledge, and a strong foundation in security principles. This full-time position requires on-site work and active clearance.