Miriam R. Lopez-Rivera

Miriam R. Lopez-Rivera serves as a Contracting Officer for the PBS R2 Capital Construction Branch within the General Services Administration’s Public Buildings Service, where she manages the acquisition of complex federal construction and design services critical to modernizing government infrastructure. Her portfolio encompasses the full lifecycle of federal facility projects—including courthouses, port of entry facilities, and office complexes—covering design, construction, renovation, and related professional services. She executes procurements in full compliance with the Federal Acquisition Regulation, ensuring alignment with GSA’s mission to deliver resilient, secure, and efficient federal buildings that support the operational needs of the U.S. government. Lopez-Rivera maintains a consistent working relationship with MCKENZIE CONSTRUCTION & SITE DEVELOPMENT LLC, a primary contractor for capital construction projects. Her procurement patterns reflect a preference for established, experienced vendors with demonstrated capacity in commercial and institutional construction, while also fostering collaboration with specialized architectural and engineering firms. She prioritizes performance-based contracting and rigorous contractor accountability to ensure timely, high-quality delivery of mission-critical infrastructure. While the majority of her acquisitions are conducted without set-asides (81.3%), she actively supports small business participation, with notable use of Total Small Business Set-Asides (12.5%) and Service-Disabled Veteran-Owned Small Business Set-Asides (6.3%). Her approach reflects a balanced commitment to competition and socioeconomic goals, consistently leveraging FAR Part 19 authorities to expand opportunities for qualified small businesses without compromising project integrity. Her primary procurement focus lies in NAICS 236220 (Commercial and Institutional Building Construction) and 541310 (Architectural Services), underscoring her technical expertise in integrated design-build delivery and facility modernization. She routinely manages contracts for site development, structural systems, and building envelope solutions, demonstrating deep familiarity with federal construction standards, sustainability requirements, and lifecycle management practices.