Frank Jonas - Founder & CEO
Frank Jonas is the Founder & CEO of Fidelitas Defense — a mission driven leader, with over two decades of national service and deep expertise at the intersection of cybersecurity, geopolitical risk, and critical infrastructure protection.
Frank began his career as a U.S. Marine Corps Officer, serving 20 years across active and reserve duty. His military service includes assignments at U.S. Cyber Command and the National Security Agency, where he led Computer Network Defense operations. After transitioning from active duty, he joined the FBI as a Special Agent (Cyber), dedicating 18 of his 20-year career to field operations in the New York City area. Following his retirement from the FBI in 2022, Frank served as Director of Cyber Threat Detection & Response for Johnson & Johnson (Kenvue) in London, UK, before founding Fidelitas Defense in 2025.
Frank is currently a part-time, DPhil (PhD) candidate at the University of Oxford, Department of Engineering Science, where his research focuses on Systems Assurance of Physical AI, Autonomous Vehicles & Robotics (PAI-AVR). He holds an MSE in Computer Science from the University of Pennsylvania, and an MBA from the Massachusetts Institute of Technology (MIT).
Dr. Brian Grottkau (M.D.) - Chief Healthcare & MedTech Strategy Officer
Dr. Brian Grottkau, M.D., is the Chief Healthcare & MedTech Strategy Officer for Fidelitas Defense.
Brian is the Shriners Professor of Pediatric Orthopaedics and Chief of Pediatric Surgical Services at the University of Miami Health System. With over 25 years of experience as a Pediatric Orthopaedic Surgeon — and more than 20 years as Chief of Pediatric Orthopaedics at Massachusetts General Hospital, formerly ranked the #1 hospital in the United States by U.S. News & World Report — Dr. Grottkau brings unparalleled clinical and leadership expertise.
He holds a B.A. in Biochemistry and Molecular Biology from Harvard University, and a M.D. from Harvard Medical School in Orthopaedic Surgery. Brian further holds an MBA from the Massachusetts Institute of Technology (MIT).
Louis Caldera - Trusted Advisor
Louis Caldera serves as a Trusted Advisor for Fidelitas Defense.
Caldera is a senior lecturer at Harvard Business School and serves on the boards of Meritage Homes and Granite Construction. A West Point graduate and former U.S. Army officer, Caldera served as Secretary of the U.S. Army under President Clinton, and later as Director of the White House Military Office under President Obama. He also previously served as a California legislator and as president of The University of New Mexico.
The son of Mexican immigrants, Caldera was born in El Paso, Texas and raised in Whittier, California. He holds a B.S. from the United States Military Academy, a J.D. from Harvard Law School, and an M.B.A. from Harvard Business School.
Louis Caldera: “Safeguarding Physical AI, Autonomous Vehicles and Robotics (PAI-AVR) from cyber and insider threats is a defining security challenge for the United States and its allies. Fidelitas Defense — founded by U.S. Military veterans & Intelligence Community operators, and reinforced by deep engineering, technical, and domain expertise — approaches this mission with exceptional rigor, integrity, and urgency. Fidelitas Defense's proprietary dual-use technology will protect the PAI-AVR innovation that is fueling our economy and advancing our national security frontiers. I’m proud to join the Fidelitas Defense Team.”
