Susan Messina

Yolanda J. Stone serves as a Contract Specialist within the Contracting and Procurement office of the Transportation Security Administration under the Department of Homeland Security. In this role, she manages the full lifecycle of acquisition programs critical to national transportation security, specializing in the procurement of advanced detection systems, irradiation equipment, and GPS-enabled rail monitoring technologies. Her responsibilities include developing solicitation documents, conducting market research, evaluating technical proposals, and ensuring compliance with federal acquisition regulations. She plays a pivotal role in supporting the agency’s mission to enhance aviation and transit security through the timely and efficient acquisition of mission-critical systems that safeguard critical infrastructure. While specific contractor names are not publicly disclosed, Yolanda collaborates with a diverse range of vendors specializing in aerospace engineering, cybersecurity services, and transportation safety technologies. Her working relationships are characterized by a focus on technical proficiency, regulatory compliance, and performance-based contract management. She engages with both large prime contractors and specialized subcontractors capable of delivering high-integrity, federally certified equipment and services aligned with TSA’s operational requirements. Yolanda’s procurement portfolio reflects a strong preference for full and open competition, with 100% of her acquisitions conducted without set-asides. This approach prioritizes technical capability and mission readiness over socioeconomic categorizations, though she remains committed to fair and transparent competition that allows all qualified firms to compete on merit. Her contracting patterns demonstrate a deliberate alignment with agency priorities that demand proven performance and national security compliance over socioeconomic preferences. Her primary focus is on NAICS 488119 (Other Airport Operations), where she specializes in procuring systems for explosive detection, radiation screening, and real-time transit monitoring. Her technical expertise spans sensor integration, secure data transmission, and compliance with DHS cybersecurity standards, positioning her as a key liaison between operational stakeholders and technical vendors delivering next-generation security solutions.