Senior ISSO - Onsite Cybersecurity Leader

Relha LLC; El Segundo (CA); On-site; USD 96,000 - 182,000; Full time

Job summary

RTX in El Segundo, CA seeks a Senior Information Systems Security Officer to ensure NIST compliance, RMF, and JSIG policies. The role is 100% onsite and requires active US government clearance.

You will partner with the ISSM to manage security controls, assessments, and documentation. Strong candidates will have DoD-regulated operational experience, familiarity with tools like Splunk and Tenable, and the ability to obtain a security professional certification within six months of hire.

Qualifications

• Typically requires a University Degree or equivalent experience and minimum 5 years prior relevant experience, or an Advanced Degree in a related field and minimum 3 years’ experience.
• Experience with cybersecurity frameworks and government regulatory standards (RMF, JSIG, NISPOM, DAAPM).
• Active security clearance is required or must be obtainable.

Responsibilities

• Assessing and monitoring system compliance, auditing, security plan development and delivering information systems security education and awareness.
• Investigating information system security violations and help prepare reports specifying corrective and preventative actions.
• Reviewing and approving configuration management requests.
• Conducting technical and administrative assessments.
• Integrating new cybersecurity processes, procedures, and tools.
• Support the creation, review and update of cybersecurity documentation and other technical writing.

Skills

Cybersecurity

RMF knowledge

Auditing

Documentation

Program management

Education

University degree or equivalent experience

Advanced degree

Tools

NIST SP 800-53

DAAPM

JSIG

NISPOM

CNSSI

Job description

RTX in El Segundo, CA seeks a Senior Information Systems Security Officer to ensure NIST compliance, RMF, and JSIG policies. The role is 100% onsite and requires active US government clearance.

You will partner with the ISSM to manage security controls, assessments, and documentation. Strong candidates will have DoD-regulated operational experience, familiarity with tools like Splunk and Tenable, and the ability to obtain a security professional certification within six months of hire.