Metrissianne D. Rivera

Metrissianne D. Rivera serves as a key procurement professional within the Army Materiel Command (AMC), supporting the Department of Defense’s mission to equip and sustain the modern force through specialized engineering services. She manages the acquisition of mission-critical technical solutions that enhance soldier readiness, including advanced systems for cyber training environments, artillery modernization, and inertial navigation technologies. Her work directly enables AMC’s digital modernization initiatives by ensuring timely delivery of engineering expertise aligned with Army modernization priorities. Rivera typically oversees sole-source and competitive procurements under the Engineering Services NAICS category, focusing on requirements that demand deep technical proficiency in defense systems integration and lifecycle support. Her contractor relationships are centered on firms with proven capability in defense engineering, particularly those offering systems engineering, technical analysis, and software development services tailored to military platforms. While specific vendor names are not disclosed, her procurement patterns indicate consistent engagement with established defense contractors and specialized engineering firms capable of delivering complex, low-volume technical solutions under strict security and compliance protocols. Her working relationships emphasize technical credibility, past performance, and ability to meet stringent DoD acquisition standards. Rivera’s contracting activity reflects a strong preference for open competition, with 100% of her acquisitions classified as “No Set-Aside.” This indicates a focus on technical merit and capability over socioeconomic classifications, prioritizing mission need and performance outcomes above demographic-based set-asides. While small business participation is not formally incentivized in her portfolio, she remains compliant with all federal procurement regulations and may incorporate small businesses as subcontractors where technically appropriate. Her primary procurement focus is exclusively under NAICS 541330 (Engineering Services), with expertise in acquiring services related to systems engineering, modeling and simulation, embedded software development, and technical support for weapon system sustainment. She specializes in procurements requiring deep domain knowledge in military electronics, sensor integration, and digital modernization initiatives critical to Army readiness.