Lead Defensive Cyber Innovation for US Space Force

Leidos seeks an elite Information Systems Security Engineer (ISSE) to drive defensive cyber capabilities for the United States Space Force (USSF). This is not a traditional cybersecurity role—it's a mission-critical leadership position demanding deep expertise in cyber policy, stakeholder engagement, and rapid capability deployment in high-stakes environments.

Primary Responsibilities

• Define and prioritize requirements for cutting-edge defensive cyber tools
• Champion 'Sec in DevSecOps' across Agile teams
• Automate cybersecurity scans throughout CI/CD pipelines
• Integrate security requirements with model-based engineering and cloud architectures
• Maintain threat relevance using frameworks like MITRE ATT&CK

Basic Qualifications

• BS + 12-15 years ISSE/cybersecurity experience
• DoD 8140 Advanced certification
• Proven USSF cyber stakeholder engagement
• US Citizen with active TS clearance (SCI/SAP preferred)

Preferred Qualifications

• USSF defensive cyber policy expertise
• Experience with Space Systems Command, SDA, MDA, NRO
• Model-based systems engineering and cloud familiarity
• Prior military cyber operations experience

Why Leidos?

We outthink, outbuild, and outpace the status quo. Join a team that disrupts and delivers superior results for national security. Pay Range: $131,300 - $237,350 (actual pay based on experience, skills, and other factors).

Original posting: February 2, 2026. USSF mission demands excellence—apply if you're ready to lead.