Senior Information Systems Security Manager

York Space Systems was founded to radically improve spacecraft affordability and reliability, transforming, and enabling next-generation space mission operations worldwide. Today, York is one of the most innovative aerospace companies, specializing in end-to-end customer solutions and the rapid production of spacecraft platforms. York’s complete Space Segment Solution includes spacecraft production, payload integration, system integration & test, launch services, ground segment services, and mission operations, enabling customers to leverage York’s existing technology solutions to get to orbit rapidly and responsively.

We’re looking to expand our team across the board.

York is seeking a highly experienced Senior Information Systems Security Manager (ISSM) to lead cybersecurity governance, compliance, and risk management activities across our ground systems and space vehicle programs. This role is central to safeguarding mission-critical assets, overseeing enterprise security authorizations, and ensuring full compliance with Department of War (DoW) and Intelligence Community (IC) cybersecurity standards.

The Senior ISSM will manage a multidisciplinary team of networking and cybersecurity professionals, providing strategic leadership across the entire Risk Management Framework (RMF) lifecycle. This position is responsible for the development, sustainment, and future evolution of Authority to Operate (ATO) packages supporting multiple classified environments. Close partnership with engineering, operations, and program leadership is essential to ensure security controls are correctly implemented, rigorously tested, accurately documented, and fully compliant with all mission and regulatory requirements.

This role will be fully on-site in our Greenwood Village, Colorado office.

• Serve as the primary cybersecurity authority for ground and space-based systems throughout development, deployment, and operations.
• Lead the creation, implementation, and maintenance of RMF packages in alignment with DoD, NIST SP 800-53, and DAAPM requirements.
• Manage and sustain ATOs, including reauthorization efforts and updates driven by system modifications or evolving mission needs.
• Provide direct leadership, mentorship, and oversight to a team of cybersecurity and IT professionals, ensuring excellence in both technical execution and compliance.
• Act as a central liaison between internal engineering teams, external assessors, and government accrediting officials.
• Conduct comprehensive risk assessments, vulnerability analyses, and POA&M management across legacy, current, and emerging systems.
• Maintain strict adherence to configuration management and change control processes.
• Support incident response readiness, audit preparation, and continuous monitoring activities.
• Promote cybersecurity awareness and reinforce policy compliance across engineering, operations, and leadership organizations.

This role will have direct reports.

• Bachelor’s degree required.
• 8+ years of relevant experience in Information Assurance or Cybersecurity,
• Expert-level understanding of the Risk Management Framework (RMF), NIST SP 800-53 controls, and applicable federal cybersecurity regulations.
• Proven success leading ATO efforts for classified systems.
• Strong technical foundation in network and system security with the ability to effectively guide and influence a multi-disciplinary technical team.
• U.S. Citizenship.
• Active TS/SCI clearance.

• Willingness to work full-time in office in Greenwood Village, CO.

• Master’s degree.

• Professional certification such as CISSP or CISM.
• Experience with space systems, ground segments, or defense-related programs.
• Familiarity with eMASS.
• Knowledge of cross-domain…