MICRO JOURNEYS PODCAST
About Dan Marrujo
Daniel Marrujo is a former Chief Strategy Officer and former Director of the Office of Research and Technology Applications (ORTA) at the Defense Microelectronics Activity (DMEA).
Mr. Marrujo began his career at Raytheon Missile Systems in Tucson, AZ., developing missile guidance systems for their advanced programs. He then moved to DMEA, in his hometown of Sacramento, CA., working for the Trusted Integrated Circuit (IC) program office. In conjunction with working on the Trusted IC program, he began working towards the development of DMEA’s reliability capabilities and was selected to lead the National High Reliability Electronics Virtual Center (HiREV).
Mr. Marrujo also established the NRO’s VS&E program which has executed a number of solutions protecting National Security. As a subject matter expert, he has provided his technical expertise in multiple DARPA, IARPA and National Security Space programs. His focus areas are Microelectronics Obsolescence, State of the Art Microelectronics Acquisition, State of the Practice Microelectronics Sustainment, Advanced Packaging, Supply Chain Risk Management, Semiconductor Reliability, Semiconductor Reverse Engineering and Semiconductor Radiation Effects.
In 2016, Mr. Marrujo was selected as DMEA’s Chief Strategy Officer, directly supporting the DMEA directorate. In this position, Mr. Marrujo works with DMEA senior leadership to define and represent the integrated DMEA message and strategic path forward for future engagements.
Latest Episodes
From cutting-edge defense systems to reshaping global energy infrastructure, Russ Garcia’s career has been anything but ordinary. In this episode of Micro Journeys, host Daniel Marrujo sits down with Russ, now CEO of Menlo Micro, to trace the arc of a career that began in laser labs and radar systems and now finds him leading innovations in microelectromechanical switch technology. With a personal history steeped in engineering and mentorship, Russ brings a unique perspective to building technologies that have moved from Cold War defense systems to powering the AI age. Diving deeper, Russ unpacks the origin and potential of Menlo Micro’s “Ideal Switch”—a breakthrough in hardware miniaturization and energy efficiency originally developed within GE’s R&D labs. He explains how this micro switch, born from a desire to reinvent the 150-year-old circuit breaker, now sits at the intersection of defense, energy, and AI. With applications ranging from nuclear submarines to distributed data center grids, the Ideal Switch is shaping the physical backbone of the technologies transforming our world. By championing dual-use technology and rethinking conventional approaches to manufacturing, Russ is helping to reshape how we think about scale, sustainability, and supply chains. His story isn’t just about one innovation—it’s about building a resilient future through strategic thinking, collaboration, and a deep understanding of how old systems can give way to new possibilities.
From combat flights over Afghanistan to overseeing two-thirds of the U.S. nuclear triad, retired Lt. Gen. Mark Weatherington has shaped some of the most critical defense strategies of our time. In this episode of Micro Journeys, host Daniel Marrujo sits down with Weatherington for a wide-ranging conversation on military innovation, deterrence theory, and the operational realities of running America’s bomber fleet. With firsthand experience across Air Force Global Strike Command, NORAD, and strategic cyber operations, Weatherington reflects on what it takes to defend a nation in the age of AI, hypersonics, and digital warfare. Diving deeper into the nuances of military modernization, Weatherington explains the behind-the-scenes challenges of sustaining decades-old aircraft, advancing technologies like the B-21 Raider, and coordinating kinetic and non-kinetic strategies across a global battlefield. He also discusses the evolving landscape of unmanned systems, the increasing importance of microelectronics, and the overlooked role of sustainment in national security planning. His message is clear: the mission can’t succeed without adaptability, anticipation, and collaboration between government, industry, and allies. Whether you’re flying a 36-hour bomber mission or securing satellite communications from a cyberattack, success depends on more than firepower—it depends on foresight.
From aspiring Air Force Academy cadet to DARPA program manager and global public diplomacy speaker, Michael Hsieh’s journey is anything but conventional. In this episode of Micro Journeys, host Daniel Marrujo sits down with Hsieh to trace the unexpected path that led him from quantum computing labs to shaping innovation culture around the world. With stories that span from personal turning points to high-stakes national security programs, Hsieh unpacks the motivations, mentors, and missions that defined his career. As a former DARPA program manager, Hsieh reflects on the agency’s culture of high-stakes innovation and its role in driving technologies that have changed the world. He shares insights into programs designed to detect social media manipulation, encrypt entire algorithms, and uncover signals of geopolitical unrest using open-source economic data. Now, as part of the U.S. State Department’s public diplomacy program, he brings those experiences to audiences worldwide—helping shape global conversations around science, trust, and innovation. Ultimately, Hsieh believes the most powerful work happens when personal values align with national purpose. From AI matchmaking to international policy dialogue, he illustrates how seemingly unrelated experiences can build toward a legacy of service, discovery, and global impact.
