Cyber Intelligence ISSO | 9/80 Schedule | Security

L3Harris; Tulsa (OK); On-site; USD 110,000 - 170,000; Full time

Job summary

L3Harris Technologies, Inc. in Tulsa, OK seeks a Senior Specialist, Cyber Intelligence (ISSO) to maintain security posture for SAP environments and support RMF compliance.

The role collaborates with the ISSM, FSO, and security team to ensure continuous monitoring and incident response. Responsibilities include updating SSPs, conducting audits, applying STIGs, managing classified media, and overseeing access control and configuration management in a mission-focused setting.

Qualifications

• Active Secret Clearance required or ability to obtain TS/SCI.
• BS/BA with 6+ years of relevant experience; graduate degree adds value.
• In lieu of degree, 10+ years of related cybersecurity/ISSO experience.

Responsibilities

• Maintain SSP, system baselines, and authorization documentation for assigned systems.
• Support RMF, JSIG, and CNSSI 1253 compliance across SAP environments.
• Perform audit reviews and monitor system activity; escalate to ISSM as needed.
• Apply DISA STIGs, run SCAP/ACAS scans, track remediation and POA&Ms.
• Manage classified media handling, marking, sanitization, destruction, and AFT.
• Administer user accounts and privileges per need-to-know and least privilege.
• Support configuration management and assess security impact of changes.
• Assist with continuous monitoring, annual self-assessments, and inspections by CSA/AO.
• Report incidents and support containment and corrective actions.
• Provide security awareness briefings and SAP indoctrination/debriefing.
• Assist with interconnections, ISA/MOU, and decommissioning efforts.
• Ensure security requirements in acquisitions and outsourcing.
• Understand Windows/Linux system administration and operations.
• Contribute to RMF activities and lifecycle docs (CONOPS, SOPs, training).

Skills

Active Secret clearance

ISSO/ISSM experience

RMF/JSIG knowledge

Windows administration

Vulnerability management

Audit/compliance

Education

Bachelor’s Degree

Graduate Degree

10+ years experience in lieu of degree

Tools

ACAS

Nessus

STIG tooling

DLP

Job description

L3Harris Technologies, Inc. in Tulsa, OK seeks a Senior Specialist, Cyber Intelligence (ISSO) to maintain security posture for SAP environments and support RMF compliance.

The role collaborates with the ISSM, FSO, and security team to ensure continuous monitoring and incident response. Responsibilities include updating SSPs, conducting audits, applying STIGs, managing classified media, and overseeing access control and configuration management in a mission-focused setting.