Stephen R Pierce

Tiffani M. Harris serves as a Contract Specialist at the Defense Threat Reduction Agency (HDTRA1), where she plays a pivotal role in executing complex acquisitions aligned with the agency’s mission to counter weapons of mass destruction and mitigate emerging national security threats. She manages the full lifecycle of professional services contracts, from requirements definition and market research to solicitation, evaluation, award, and contract administration. Her work directly supports scientific, technical, and operational initiatives in chemical, biological, radiological, nuclear, and high-yield explosive threat detection, analysis, and neutralization. Harris specializes in high-stakes, mission-critical procurements that require rigorous compliance with DoD acquisition regulations and technical specificity. She maintains enduring partnerships with leading technical service providers including TECHTRANS INTERNATIONAL INC, BATTELLE MEMORIAL INSTITUTE, AERIS LLC, APPLIED RESEARCH ASSOCIATES, INC., and AMAZON WEB SERVICES, INC. These relationships reflect a consistent reliance on top-tier contractors capable of delivering advanced R&D, analytical modeling, cyber-infrastructure, and operational support services. Harris fosters collaborative, performance-driven contracting environments that prioritize innovation, scalability, and mission alignment, often engaging vendors in long-term, task-order-based arrangements under Indefinite-Delivery, Indefinite-Quantity (IDIQ) vehicles. Harris’s procurement portfolio reflects a strict focus on open competition, with 100% of her awards issued under no set-aside classifications. She does not routinely utilize 8(a), HUBZone, SDVOSB, or other socioeconomic programs, instead prioritizing technical capability and mission readiness over socioeconomic preferences. This approach underscores a commitment to selecting the most qualified providers to meet HDTRA1’s demanding operational requirements. Her primary contracting focus is on NAICS 541990—All Other Professional, Scientific, and Technical Services—encompassing advanced scientific research, threat modeling, forensic analysis, sensor development, and high-performance computing support. She consistently procures specialized services in WMD detection, data analytics, and secure cloud-based infrastructure, reflecting deep expertise in national security science and technology domains.