Senior ISSO – National Security Cyber Defense (TS/SCI) Vienna

Data Intelligence LLC; Vienna (VA); On-site; USD 140,000 - 190,000; Full time

Job summary

Data Intelligence, LLC in Vienna, VA is seeking a Senior ISSO to secure complex federal IT systems. This on-site role works with government and contractor teams to ensure compliance, manage risk, and defend against evolving cyber threats.

The selected candidate will need active TS/SCI w/poly clearance and hands-on experience with NIST, ISO 27001, CIS Controls, firewalls, IDS/IPS, and SIEM platforms. The position emphasizes policy development, risk assessment, and incident response.

Qualifications

• Minimum 5+ years in an ISSO role or equivalent.
• Proven experience with federal security requirements and risk management.
• Strong incident response and threat monitoring capabilities.
• Familiarity with NIST, ISO 27001, and CIS Controls.

Responsibilities

• Implement and enforce information security requirements, standards, and procedures.
• Monitor security posture, coordinate incident response and remediation.
• Conduct security risk and vulnerability assessments and scans.
• Configure and manage firewalls, IDS/IPS, and SIEM tools.
• Collaborate with stakeholders to address findings and improve security.

Skills

ISSO experience

Incident response

Risk management

Security policy expertise

Windows/Linux security

Education

CISSP

CISA

CISM

CISSO

Tools

Firewalls

IDS/IPS

SIEM

Job description

Data Intelligence, LLC in Vienna, VA is seeking a Senior ISSO to secure complex federal IT systems. This on-site role works with government and contractor teams to ensure compliance, manage risk, and defend against evolving cyber threats.

The selected candidate will need active TS/SCI w/poly clearance and hands-on experience with NIST, ISO 27001, CIS Controls, firewalls, IDS/IPS, and SIEM platforms. The position emphasizes policy development, risk assessment, and incident response.