Defense Information Systems Agency Executive and Leadership Team

September, 2026

Leadership Overview

Defense Information Systems Agency has 10 executives leading key functions including strategy, information technology, operations, finance, and technical innovation.

Focused on global military connectivity, Defense Information Systems Agency delivers secure command and control infrastructure while advancing cybersecurity solutions to ensure mission success across all defense and intelligence operations.

Leadership Roles at Defense Information Systems Agency

  • Chief Executive Officer - Robert Volk
  • Chief Financial Officer - Barbara Crawford
  • Program Office of The Analyst & Chief Financial Officer, J8 (Ocfo) - Roger Hulbert
  • Chief Information Officer - Henry Sienkiewicz
  • Chief of Staff - Royce Resoso
  • Deputy Chief of Staff - Molly Barsic
  • Chief, Business Management Division, Office of the Chief Information Officer - Patricia Flood
  • Position, Office of the Chief Technology Officer - Frederick Schulz
  • Vice Chief Information Officer - Sherrie Balko
  • Chief of Staff, DCDC - S. Ebell
  • Robert Volk - Chief Executive Officer

    Robert Volk, the Chief Executive Officer at Defense Information Systems Agency, directs the overarching strategic vision for global military communications and information technology infrastructure. Overseeing the integration of complex software engineering and cybersecurity solutions, the Chief Executive Officer ensures alignment with Department of Defense requirements. This leadership role involves managing large-scale technological deployments that support command and control capabilities across diverse operational theaters. By prioritizing secure, resilient network architectures, Volk drives the agency toward enhanced mission readiness. The Chief Executive Officer maintains constant coordination with military leadership to address evolving threats in the digital domain. Through rigorous oversight of organizational performance, Robert Volk secures the operational integrity of critical defense systems. This executive focus on innovation and reliability remains central to the agency's ability to provide superior information services to warfighters worldwide.

    Barbara Crawford - Chief Financial Officer

    Barbara Crawford, the Chief Financial Officer at Defense Information Systems Agency, manages the fiscal health and budgetary allocation for all information technology and cybersecurity programs. Overseeing the financial planning and analysis for large-scale defense contracts, the Chief Financial Officer ensures that capital investments align with mission-critical objectives. This role involves monitoring expenditures across global operations to maintain cost-efficiency and regulatory compliance. By providing financial oversight for software engineering projects, Crawford enables the agency to sustain long-term technological superiority. The Chief Financial Officer collaborates with executive leadership to prioritize funding for emerging infrastructure needs. Barbara Crawford directs the development of financial strategies that support the agency's commitment to providing secure communication services. This leadership position requires precise management of resources to ensure that every dollar spent contributes directly to the operational readiness of military command and control systems.

    Roger Hulbert - Program Office of The Analyst & Chief Financial Officer, J8 (Ocfo)

    Roger Hulbert, the Program Office of The Analyst & Chief Financial Officer, J8 (Ocfo) at Defense Information Systems Agency, conducts rigorous financial analysis and program evaluation for the J8 division. Overseeing the budgetary oversight of critical technology programs, the Program Office of The Analyst & Chief Financial Officer, J8 (Ocfo) ensures that financial resources support the agency's software engineering and cybersecurity objectives. This role involves assessing the cost-effectiveness of various IT initiatives to maximize value for the Department of Defense. By providing data-driven insights, Hulbert supports informed decision-making regarding resource allocation. The Program Office of The Analyst & Chief Financial Officer, J8 (Ocfo) collaborates with financial and operational leaders to track program performance against strategic benchmarks. Roger Hulbert maintains a focus on fiscal responsibility, ensuring that all programs remain within budget while delivering essential information services to support global military operations.

    Henry Sienkiewicz - Chief Information Officer

    Henry Sienkiewicz, the Chief Information Officer at Defense Information Systems Agency, architects the enterprise-wide information technology framework necessary for modern military operations. Managing the deployment of secure cloud services and data management platforms, the Chief Information Officer ensures seamless connectivity for defense personnel. This role involves supervising the transition to advanced digital environments while maintaining strict cybersecurity protocols. By optimizing information systems, Sienkiewicz supports the rapid exchange of intelligence across global networks. The Chief Information Officer collaborates with technical teams to modernize legacy infrastructure, thereby increasing operational efficiency. Henry Sienkiewicz monitors the performance of critical communication nodes to guarantee uptime during high-stakes missions. This leadership position requires constant vigilance regarding emerging cyber threats and the implementation of robust defensive measures to protect sensitive military data assets.

    Royce Resoso - Chief of Staff

    Royce Resoso, the Chief of Staff at Defense Information Systems Agency, coordinates internal operations and facilitates communication between executive leadership and departmental units. Managing the flow of critical information, the Chief of Staff ensures that strategic directives translate into actionable tasks across the agency. This role involves streamlining administrative processes to improve organizational agility and responsiveness to defense requirements. By aligning cross-functional teams, Resoso supports the execution of complex technology projects. The Chief of Staff oversees the implementation of internal policies that govern software engineering and cybersecurity initiatives. Royce Resoso maintains a focus on operational efficiency, ensuring that resources reach priority programs effectively. This leadership function requires deep understanding of agency goals to facilitate collaboration among diverse technical divisions, ultimately strengthening the overall impact of the organization on national security missions.

    Molly Barsic - Deputy Chief of Staff

    Molly Barsic, the Deputy Chief of Staff at Defense Information Systems Agency, assists in the management of daily operations and the execution of strategic initiatives. Supporting the Chief of Staff, the Deputy Chief of Staff monitors the progress of key technology projects and ensures departmental alignment with agency goals. This role involves facilitating communication across various divisions to resolve operational bottlenecks and improve workflow efficiency. By coordinating internal resources, Barsic supports the delivery of cybersecurity and information services to defense partners. The Deputy Chief of Staff oversees administrative functions that underpin the agency's ability to maintain global communication networks. Molly Barsic contributes to the development of organizational policies that enhance mission performance. This leadership role requires a focus on detail and process improvement to ensure that the agency remains responsive to the evolving needs of the Department of Defense.

    Patricia Flood - Chief, Business Management Division, Office of the Chief Information Officer

    Patricia Flood, the Chief, Business Management Division, Office of the Chief Information Officer at Defense Information Systems Agency, directs the business operations and resource management for the information technology division. Overseeing the procurement and contract management processes, the Chief, Business Management Division, Office of the Chief Information Officer ensures that technical teams possess the necessary tools to execute cybersecurity and software engineering tasks. This role involves managing the business lifecycle of critical IT services to support military operations. By optimizing operational workflows, Flood improves the delivery speed of technology solutions. The Chief, Business Management Division, Office of the Chief Information Officer collaborates with financial and technical leaders to align business practices with strategic goals. Patricia Flood maintains a focus on efficiency and compliance, ensuring that all business activities support the agency's mission to provide secure, reliable information systems for defense purposes.

    Frederick Schulz - Position, Office of the Chief Technology Officer

    Frederick Schulz, the Position, Office of the Chief Technology Officer at Defense Information Systems Agency, evaluates emerging technologies to enhance the agency's software engineering and cybersecurity capabilities. Overseeing the research and development of advanced communication systems, the Position, Office of the Chief Technology Officer identifies innovative solutions for complex defense challenges. This role involves testing and integrating new technologies into existing command and control infrastructure. By driving technical innovation, Schulz ensures that the agency remains at the forefront of digital defense. The Position, Office of the Chief Technology Officer collaborates with engineering teams to prototype and deploy scalable solutions for global military use. Frederick Schulz monitors technological trends to anticipate future requirements for secure information exchange. This leadership function requires a deep understanding of technical architecture to ensure that all new systems meet the rigorous standards of the Department of Defense.

    Sherrie Balko - Vice Chief Information Officer

    Sherrie Balko, the Vice Chief Information Officer at Defense Information Systems Agency, supports the implementation of enterprise-wide information technology strategies and network security protocols. Overseeing the operational maintenance of critical communication systems, the Vice Chief Information Officer ensures high availability for military command and control. This role involves supervising the deployment of secure data centers and cloud infrastructure across global locations. By managing technical teams, Balko drives the execution of cybersecurity initiatives that protect sensitive defense information. The Vice Chief Information Officer collaborates with the Chief Information Officer to modernize legacy systems and improve network resilience. Sherrie Balko monitors system performance to ensure that all information services meet the demanding requirements of military operations. This leadership position requires constant attention to technical detail and a commitment to maintaining the integrity of the agency's vast information technology ecosystem.

    S. Ebell - Chief of Staff, DCDC

    S. Ebell, the Chief of Staff, DCDC at Defense Information Systems Agency, manages the operational coordination and strategic planning for the DCDC division. Overseeing the integration of specialized information services, the Chief of Staff, DCDC ensures that departmental activities align with the broader mission of providing secure command and control infrastructure. This role involves facilitating communication between technical teams and executive leadership to streamline project delivery. By managing internal workflows, Ebell supports the development of cybersecurity solutions tailored for defense needs. The Chief of Staff, DCDC monitors the progress of key initiatives to ensure timely completion and resource optimization. S. Ebell maintains a focus on operational excellence, ensuring that the division remains responsive to the evolving requirements of military operations. This leadership function requires strong organizational skills to manage complex projects and foster collaboration across the agency's technical divisions.

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    Frequently Asked Questions Regarding Defense Information Systems Agency Top Executives and Leadership Team

    Who leads Defense Information Systems Agency?
    Defense Information Systems Agency is led by Robert Volk (Chief Executive Officer), along with executives such as Barbara Crawford (Chief Financial Officer) and Roger Hulbert (Program Office of The Analyst & Chief Financial Officer, J8 (Ocfo)).
    Who is part of Defense Information Systems Agency’s executive team?
    The executive team of Defense Information Systems Agency includes leaders such as Robert Volk (Chief Executive Officer), Barbara Crawford (Chief Financial Officer), Roger Hulbert (Program Office of The Analyst & Chief Financial Officer, J8 (Ocfo)) and other senior executives.
    How many executives does Defense Information Systems Agency have?
    Defense Information Systems Agency has 10 executives leading key business areas.
    What roles are included in Defense Information Systems Agency’s leadership team?
    The leadership team of Defense Information Systems Agency includes roles such as Chief Executive Officer, Chief Financial Officer, Program Office of The Analyst & Chief Financial Officer, J8 (Ocfo), Chief Information Officer, Chief of Staff.