Information Systems Security Officer (ISSO)

Mid-Senior Level | $90,000 - $142,000 | Colorado Springs, CO | TS/SCI Clearance Required Protect critical systems. Strengthen national defense. Join a mission-focused cybersecurity team safeguarding classified DoD environments. A Day in the Life - What you’ll do

• Maintain and enhance the cybersecurity posture of classified information systems supporting Department of Defense missions
• Partner with ISSMs, ISOs, engineers, and government stakeholders to manage RMF compliance, vulnerability mitigation, and continuous monitoring activities
• Coordinate system security changes, configuration management efforts, audit readiness, and security documentation
• Conduct security assessments, audit reviews, and compliance reporting for internal leadership and external government agencies
• Support incident response activities, system recovery planning, and implementation of cybersecurity best practices across mission environments, Documentation & Audit
• Security Assessments
• Audit Log Management
• Technical Reporting
• Incident Documentation
• Policy Development
• Compliance Reporting

Who is Caribou Thunder? Caribou Thunder is a HUBZone-certified small business providing advanced technical and engineering services to the U.S. Department of War and its mission partners. 35+ states and 20+ countries. We’ve delivered trusted solutions for over two decades - strengthening national readiness across missions on land, undersea, in the air, and throughout LEO, MEO, GEO, and deep space. Why Caribou Thunder? TEAM THUNDER - Mission Focused. Delivery Proven. Ready to Serve.

• Employee Advocacy
• Mission Proven
• Global Reach
• Skilled Teams
• Modern Tools
• Empowering Culture

Our engineers and innovators ensure capability from sea floor to space frontier - delivering on time, maintaining compliance, and performing with precision in high-consequence environments. We specialize in Engineering Services, Cybersecurity, Software Development, Modeling & Simulation, Digital Engineering, and Artificial Intelligence - disciplines powering the nation’s most complex technical missions. Employee Advocacy + Benefits Our people are the heart of Caribou Thunder. We invest in their growth, flexibility, and well-being - knowing their success drives ours.

• Active Top Secret/SCI clearance required
• Bachelor’s degree in STEM (Science, Technology, Engineering, or Mathematics)
• 5-15 years of experience in cybersecurity, information assurance, or ISSO-related roles supporting DoD or government systems
• Strong understanding of Risk Management Framework (RMF) processes and security impact analysis
• Experience supporting NIST 800-53 and DoD cybersecurity compliance requirements
• Ability to manage security documentation, audits, and continuous monitoring activities
• Experience working within classified computing environments
• Strong written and verbal communication skills with the ability to interface with technical teams and senior leadership
• Detail-oriented with strong organizational and analytical problem-solving skills

Preferred Qualifications

• Experience with Security Authorization Packages and accreditation processes
• Knowledge of DoD 8500 Series policies and procedures
• Familiarity with Windows and Linux operating systems in secure enterprise environments
• Experience with vulnerability assessment and remediation activities
• Understanding of secure media handling procedures and classified data protection
• Experience with audit log management, incident documentation, and cybersecurity reporting
• Knowledge of logical and physical system topology design
• Relevant cybersecurity certifications such as Security+, CISSP, CASP+, or CISM

Core Skills & Tools Cybersecurity & Compliance

• NIST 800-53
• Risk Management Framework (RMF)
• DoD 8500 Series
• Security Authorization Packages
• Continuous Monitoring
• Vulnerability Assessment & Mitigation

Systems & Platforms

• Windows Operating Systems
• Linux Operating Systems
• Secure Media Handling
• Configuration Management
• System Recovery Procedures
• Logical & Physical Network Topology

• Premium Health, Dental & Vision Insurance
• 401(k) with 6% Company Match
• Flexible PTO & Work Schedule
• Education & Certification Reimbursement
• Support for Military Leave
• Work-Life Balance & Traditional Family Values

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