ISSO: Cyber Intelligence & Security Lead

Harris Geospatial Solutions; Greenville (TX); On-site; USD 90,000 - 150,000; Full time

Job summary

L3Harris Greenville, Texas, is seeking an Information System Security Officer (ISSO) to support AFIC programs. Responsibilities include auditing, documenting, and accrediting systems under the ISSM with RMF and NIST guidance.

Proficiency with XACTA, Nessus, and other security tools is required. The role emphasizes updating SSPs, SARs, POA&Ms, and risk assessments, with strong collaboration across IT and system managers.

Qualifications

• Bachelor’s Degree in a related field with 4+ years of cyber experience; graduate degree with 2+ years; or 8+ years of cyber experience in lieu of a degree.
• Active Top Secret security clearance required.
• CompTIA Security+ CE or equivalent certification.
• Experience with accreditation systems such as XACTA, EMASS, SNOW; familiarity with RMF, NIST, CNSSI, JSIG, and DoD directives.

Responsibilities

• Audit, document, and accredit assigned boundaries and networks under the ISSM guidance.
• Update documentation for information systems within XACTA.
• Interpret and implement RMF, NIST, CNSSI, JSIG, DoD and customer directives.

Skills

Security mindset

Documentation

Education

Bachelor’s Degree

Graduate Degree or equivalent

8+ years experience in lieu of degree

Tools

XACTA

XACTA.io

EMASS

SNOW

Tenable Nessus

Splunk

Job description

L3Harris Greenville, Texas, is seeking an Information System Security Officer (ISSO) to support AFIC programs. Responsibilities include auditing, documenting, and accrediting systems under the ISSM with RMF and NIST guidance.

Proficiency with XACTA, Nessus, and other security tools is required. The role emphasizes updating SSPs, SARs, POA&Ms, and risk assessments, with strong collaboration across IT and system managers.