Information Systems Security Manager

Socket.dev; Houston (TX); On-site; USD 120,000 - 150,000; Full time

Job summary

Intuitive Machines seeks an Information Systems Security Manager (ISSM) in Houston, TX to lead information assurance across classified programs. You will manage IS security lifecycle, accreditation packages, and security policy in coordination with government agencies.

The role requires active TS/SCI clearance, NISPOM/JSIG experience, and leadership of security professionals. You will oversee SSPs, RMF activities, and incident response, ensuring robust security posture.

Qualifications

• U.S. citizen with Active TS/SCI clearance and CI Poly.
• Experience implementing NISPOM Chapter 8, ICD 503 and JSIG IS requirements in SAP/SCI env.
• CISSP and CISM certifications.
• GSLC certification within 6 months of hire.
• Bachelor of Science degree.
• 8 years of related IT security experience.
• 2+ years in classified (SCI) environment.
• Hands-on SIEM experience (Splunk/Elastic) for log analysis.
• RMF experience including assessment and authorization activities.
• Coordination with government assessment teams (DCSA, NSA, PSOs).

Responsibilities

• Ensure information system compliance with government policies across programs.
• Ensure security controls align with NIST SP and applicable policies; assess changes and vulnerabilities.
• Maintain NIST 800-53 controls in Security Controls Tractability Matrix (SCTM).
• Monitor POA&M to mitigate system vulnerabilities.
• Coordinate IS security policy with government agencies for rulings and deviations.
• Establish and monitor IS Security Program and SSPs.
• Prepare and maintain Systems Security Plans (SSP) and ensure proper testing.
• Evaluate SSP changes with customers and obtain approvals.
• Conduct ongoing security reviews and tests of information systems.
• Lead and mentor security staff; oversee insider threat program activities.
• Coordinate security incident response with agencies and stakeholders.
• Oversee media sanitization and decommissioning procedures.

Skills

TS/SCI clearance

NIST 800-53

RMF

CISSP

CISM

GSLC

Leadership

Insider threat

Security audits

Government coordination

Education

Bachelor of Science

Tools

Splunk

Elastic

Job description

Information Systems Security Manager

Houston, TX

About Intuitive Machines:

Intuitive Machines is an innovative and cutting-edge space company making cislunar space accessible to both public and private customers. Our mission is to further science and exploration, communications, and economic progress from the Earth to the Moon and beyond. With multiple NASA lunar missions in development and additional private missions on our manifest, we pride ourselves in supporting NASA, our customers, and the nation in paving the way to return humans to the surface of the Moon. Our world-class team includes experts in all aspects of spacecraft subsystems design, development, and test, on-orbit operations, and safety.

About the Position:

We are currently seeking an Information Assurance Manager (IAM)/Information Systems Security Manager (ISSM). This role is based in our Houston, TX office. In this role, you will be responsible for a portfolio of classified programs covering Collateral, Sensitive Compartmented Information (SCI). You will support information system full life cycle activities including scoping information systems for new programs, preparing accreditation/certification packages in accordance with relevant regulations and standards, maintenance and monitoring of operational systems, system upgrades and feature additions during program execution, and system decommission and de-certification activities.

Responsibilities:

• Responsible for ensuring Information System compliance with the potential to span multiple business areas or programs.
• Ensure system security measures comply with applicable government policies. Provide configuration management and accurately assess the impact of modifications and vulnerabilities for each system.
• Maintain a thorough understanding of NIST 800-53 controls, and determine which controls are applicable to the application, as well as document implementation in Security Controls Tractability Matrix (SCTM).
• Monitor and resolve Plan of Action and Milestones (POA&M) to mitigate system vulnerabilities on assigned Information Systems.
• Communicate and coordinate Information Systems Security policy across their organization and work with government agencies to obtain rulings, interpretations, and acceptable deviations for compliance with regulations.
• Establish, document, implement, and monitor the IS Security Program and related procedures for the facility and ensure compliance with IS security requirements.
• Prepare and maintain Systems Security Plans (SSP) which accurately reflect the installation and security provisions of the system.
• Ensure that each SSP has been implemented, that the specified security controls are in place and properly tested, and that the IS is functioning as described in the SSP.
• Evaluate proposed changes or additions to the SSP and collaborate with customers for systems approvals.
• Conduct on-going security reviews and tests for information systems to periodically verify that security features and operating controls are functional and effective.
• Ensure that periodic self-inspections of the facility’s IS Program are conducted as part of the overall facility self-inspection program.
• Ensure the development, documentation and presentation of IS security education, awareness, and training activities for facility management, IS personnel, users, and others as appropriate.
• Ensure personnel are trained on the IS’s prescribed security restrictions and safeguards before they are initially allowed to access a system.
• Responsible for reporting compliance metrics to government CSA, Program Management, and Information System Owner.
• Manage, lead and provide security guidance and mentoring to a team of security professionals
• Oversee and coordinate insider threat program activities for assigned information systems in collaboration with the Insider Threat Program Manager.
• Ensure proper media sanitization, destruction, and accountability procedures are followed for classified storage devices and system components throughout the system lifecycle and during decommissioning activities.
• Coordinate security incident response activities for assigned systems, including timely reporting to appropriate government agencies (DCSA, NSA, etc.) and internal stakeholders.
• Oversee physical security integration with IS security requirements, ensuring proper coordination with facility security personnel.
• Manage COMSEC material accountability and cryptographic key management for assigned systems as applicable.
• Ensure compliance with TEMPEST/EMSEC requirements for SCI-level systems as applicable

Requirements:

• Must be a U.S. citizen with Active TS/SCI clearance and CI Poly
• Experience as an ISSM/ISSO implementing NISPOM Chapter 8, ICD 503, and/or JSIG IS requirements in an SAP/SCI environment
• CISSP and CISM certifications
• Ability to obtain GSLC certification within 6 months of hire
• Bachelor of Science degree
• 8 years of related IT security experience
• Minimum of 2 years related IT or security experience in a classified (SCI) environment
• Hands-on experience with SIEM tools (Splunk, Elastic, or similar) for log analysis and security event correlation
• Knowledge of Information Security or Information technology standards
• Experience with Risk Management Framework (RMF) including participation in assessment and authorization activities
• Experience conducting security audits and vulnerability assessments in operational classified systems
• Department of Defense Directive (DoDD) 8140 / 8570 Certification requirements (CompTIA Security+ CE or equivalent certification)
• Experience coordinating with government assessment teams (DCSA, NSA, Program Security Officers)

Preferred Requirements:

• Familiarity with implementation of Government directives and policies derived from NIST, CNSSI, ICD, DoD, or other Government Regulatory compliance standards within a professional industry
• Experience with Information Security tools including audit reduction, vulnerability management, change detection, network monitoring, etc. (ACAS, Nessus, HBSS, SPLUNK, RedSeal, Tripwire, DISA SCC and STIG Viewer)
• Experience developing IS security plans, policy and procedures for Local Area Network (LAN) Information Systems and Wide Area Network (WAN) Information systems
• Experience with both Windows and Linux operating environments
• Previous leadership experience
• Experience managing security incidents and coordinating response activities in classified environments
• Knowledge of DevSecOps practices and secure software development lifecycle in classified systems
• Experience with insider threat detection tools and procedures

US EEO Statement:

Intuitive Machines is an Equal Opportunity employer. All qualified applicants will receive consideration for employment without regard to sex, gender identity, sexual orientation, race, color, religion, national origin, disability, protected veteran status, age, or any other characteristic protected by law.