Kirsten M O'Brien

Kirsten M. O’Brien serves as a Contract Specialist within the Contracting and Procurement office of the Transportation Security Administration under the Department of Homeland Security, where she plays a critical role in executing acquisitions that directly support national transportation security infrastructure. She manages the full lifecycle of procurement actions for specialized equipment and technical services, including explosive detection systems, irradiation apparatus, and GPS-enabled rail monitoring technologies. Her work ensures that mission-critical security capabilities are delivered efficiently and in compliance with federal acquisition regulations, aligning procurement outcomes with the TSA’s strategic priorities to enhance aviation and transit safety. O’Brien cultivates collaborative relationships with a diverse range of vendors, including manufacturers of advanced detection systems, technical consultants, and service providers supporting operational readiness. While specific contractor names are not disclosed, her contracting patterns reflect consistent engagement with firms capable of delivering high-precision, regulated technologies and mission-support services. She emphasizes vendor accountability, performance-based contracting, and technical compliance, fostering partnerships that meet stringent security and operational standards. Her procurement strategy demonstrates a strong commitment to socioeconomic goals, with nearly 36% of her awards directed toward small business set-asides under FAR 19.5, including a notable focus on HUBZone firms. Although the majority of her acquisitions are open to full and open competition, she actively leverages set-aside authorities to promote equitable access for small and underserved businesses, reflecting a balanced approach to mission needs and federal socioeconomic objectives. O’Brien’s primary procurement focus centers on NAICS 561720 (Janitorial Services), 541690 (Scientific and Technical Consulting), and 334517 (Irradiation Apparatus Manufacturing), indicating expertise in both operational support and high-tech defense-related manufacturing. She routinely procures specialized equipment for radiation detection, cybersecurity-enabled monitoring systems, and technical advisory services critical to securing transportation networks, demonstrating deep familiarity with the technical and regulatory demands of homeland security procurement.