NNSA Executive and Leadership Team

Emily Stanton, the Chief of Staff at NNSA, directs strategic initiatives and operational alignment across the agency. Stanton coordinates high-level policy development and ensures effective communication between executive leadership and various departments. This role involves managing critical projects that support NNSA's core mission of maintaining a safe and secure nuclear stockpile. By overseeing internal operations, Stanton drives efficiency and ensures that agency resources are optimally allocated to meet national security objectives. The Chief of Staff's purview extends to advising leadership on complex issues, facilitating decision-making processes, and championing the agency's commitment to global security and nonproliferation efforts. Emily Stanton's leadership ensures the seamless execution of NNSA's multifaceted responsibilities, from nuclear propulsion for the U.S. Navy to responding to domestic and international radiological emergencies.

Lee Hoover, the Chief Technology Officer at NNSA, architects the agency's technological vision and drives innovation in nuclear security and nonproliferation. Hoover oversees the integration of cutting-edge technologies to enhance the safety, security, and reliability of the U.S. nuclear stockpile. This leadership position involves identifying and implementing advanced solutions for global security challenges, including counterproliferation and emergency response. The Chief Technology Officer's responsibilities encompass guiding research and development efforts, ensuring robust cybersecurity measures, and leveraging transformative technologies to address emerging threats. Lee Hoover's strategic direction is crucial for maintaining NNSA's technological superiority and its capacity to respond effectively to nuclear and radiological emergencies both domestically and abroad. Hoover's expertise underpins the agency's ability to provide nuclear propulsion for the U.S. Navy and to develop novel approaches to complex national security issues.

Jonathan Rosen, the Emergency Management Chief of Staff at NNSA, spearheads the agency's preparedness and response capabilities for nuclear and radiological incidents. Rosen coordinates critical emergency management operations, ensuring rapid and effective deployment of resources during crises. This role involves developing and refining response protocols, fostering interagency collaboration, and managing the logistical complexities of emergency situations. The Emergency Management Chief of Staff's focus is on mitigating the impact of nuclear and radiological events, both within the U.S. and internationally. Jonathan Rosen's leadership is vital for maintaining NNSA's readiness to address unforeseen threats and for safeguarding national security through robust emergency preparedness. Rosen's efforts directly support the agency's mission to provide a safe, secure, and reliable response to the most critical national security challenges.

Perry Johnson, the Management & Budget Chief of Staff at NNSA, directs the agency's financial planning, resource allocation, and operational efficiency. Johnson oversees the strategic management of budgets and ensures that financial resources are aligned with NNSA's core missions, including stockpile stewardship and nonproliferation. This leadership role involves developing financial strategies, optimizing resource utilization, and ensuring compliance with federal regulations. The Management & Budget Chief of Staff's responsibilities extend to enhancing operational effectiveness across all NNSA programs. Perry Johnson's fiscal oversight is critical for sustaining the agency's ability to deliver on its national security commitments, from providing nuclear propulsion for the U.S. Navy to responding to global emergencies. Johnson's expertise ensures the sound financial footing necessary for NNSA's complex and vital operations.

Stephen McAndrews, the Deputy Chief Information Officer at NNSA, supports the strategic direction and execution of the agency's information technology infrastructure and cybersecurity initiatives. McAndrews assists in safeguarding NNSA's sensitive data and critical systems, ensuring operational continuity and resilience against cyber threats. This role involves collaborating on the implementation of advanced IT solutions that enhance NNSA's mission effectiveness in areas such as nuclear stockpile management and nonproliferation. The Deputy Chief Information Officer's contributions are essential for maintaining a secure and efficient technological environment that supports the agency's national security objectives. Stephen McAndrews plays a key part in ensuring that NNSA's information systems are robust, secure, and capable of supporting the agency's diverse and demanding operational requirements.

William Watkins, the Director, Program Management For The Office of & Chief Information Officer at NNSA, leads critical program management functions within the agency's information technology division. Watkins oversees the planning, execution, and delivery of key IT programs that support NNSA's national security missions. This involves ensuring that technology programs are completed on time, within budget, and meet stringent performance requirements. The Director's responsibilities include managing complex projects related to cybersecurity, data management, and system modernization. William Watkins's program management expertise is vital for the successful implementation of technological advancements that bolster NNSA's capabilities in areas such as nuclear stockpile security and global nonproliferation efforts. Watkins ensures that IT programs directly contribute to the agency's overarching goals of safety, security, and reliability.

Jon Holmberg, the Deputy Chief of Staff at NNSA, provides critical support to the Chief of Staff in managing agency-wide operations and strategic initiatives. Holmberg assists in coordinating cross-functional teams and ensuring the effective implementation of executive directives across NNSA's diverse programs. This role involves facilitating communication, resolving operational challenges, and contributing to the development of policies that uphold national security. The Deputy Chief of Staff's focus is on enhancing the efficiency and effectiveness of NNSA's core functions, including stockpile stewardship and nonproliferation efforts. Jon Holmberg's contributions are instrumental in ensuring the seamless operation of the agency and its ability to respond to complex national security demands. Holmberg supports the strategic alignment of resources to meet NNSA's vital mission objectives.

Stacy Mackell, the Chief of Staff Task Lead at NNSA, manages specific high-priority tasks and projects assigned by the Chief of Staff, ensuring their successful execution. Mackell oversees the coordination of resources and personnel for critical initiatives that advance NNSA's mission objectives, including nuclear security and emergency preparedness. This leadership position involves driving project timelines, mitigating risks, and ensuring alignment with agency-wide strategic goals. The Chief of Staff Task Lead's responsibilities are crucial for the timely and effective delivery of key NNSA programs. Stacy Mackell's dedicated focus on task leadership ensures that critical operational and strategic objectives are met with precision and efficiency, supporting the agency's commitment to national and global security.

Rilla Hamilton, the Defense Programs Chief of Staff at NNSA, directs strategic operations and resource management for the agency's defense programs. Hamilton ensures the effective execution of initiatives related to the design, production, and maintenance of the U.S. nuclear stockpile, prioritizing safety and security. This role involves coordinating complex projects, fostering collaboration among technical teams, and aligning program objectives with national defense strategies. The Defense Programs Chief of Staff's oversight is critical for maintaining the reliability and effectiveness of the nation's nuclear deterrent. Rilla Hamilton's leadership ensures that NNSA's defense programs meet the highest standards of performance and contribute directly to national security and global stability.

AnnaMarie Trujillo, the NA-LA Chief of Staff and Senior Technical Advisor at NNSA, provides critical strategic guidance and technical expertise for the agency's operations in the North American and Latin American regions. Trujillo oversees key initiatives that support NNSA's nonproliferation and counterproliferation efforts, ensuring regional security and stability. This dual role involves managing operational aspects while also offering advanced technical insights to inform decision-making. The NA-LA Chief of Staff and Senior Technical Advisor's contributions are vital for navigating complex geopolitical landscapes and addressing emerging security challenges. AnnaMarie Trujillo's leadership ensures that NNSA's regional strategies are technically sound and effectively implemented to protect national interests.