Shannon L Castro

Shannon L. Castro serves as a Contract Specialist within the FA4855 27th Sustainment Contracting Squadron, part of the Department of the Air Force, where she plays a pivotal role in executing mission-critical acquisitions to sustain air base infrastructure and operational readiness. Her portfolio centers on facility services, building systems, and mission-enabling support contracts, including HVAC, wastewater treatment, and secure communications infrastructure. Castro manages the full lifecycle of procurement actions—from market research and solicitation development to contract award and administration—ensuring compliance with FAR, DFARS, and Air Force-specific acquisition policies. She is instrumental in aligning contracting strategies with the agency’s priorities to modernize physical assets and enhance base resilience. Castro maintains a consistent working relationship with ALTUS TECHNICAL SOLUTIONS LLC, a key contractor delivering specialized building services and facility maintenance solutions. Her procurement approach emphasizes performance-based contracting and clear statement of work development to ensure accountability and mission alignment. She collaborates closely with technical representatives and program managers to define requirements and evaluate vendor capabilities, fostering long-term partnerships grounded in reliability and compliance. A strong advocate for small business participation, Castro consistently structures acquisitions with Total Small Business Set-Asides under FAR 19.5, reflecting a 66.7% preference for small business opportunities. Her contracting patterns demonstrate a deliberate commitment to socioeconomic programs, prioritizing small business inclusion across diverse service categories while maintaining rigorous performance standards. Her primary procurement focus lies in NAICS 561790 (Other Services to Buildings and Dwellings), encompassing facility maintenance, repairs, and utility system support, with secondary emphasis on NAICS 532420 (Office Machinery and Equipment Rental and Leasing). This specialization underscores her technical expertise in sustaining critical infrastructure through service-based acquisitions rather than capital equipment purchases, ensuring air bases remain mission-ready through responsive, compliant, and efficient contracting practices.