Jeanine M. Mathiesen

Jeanine M. Mathiesen serves as a Contracting Officer’s Representative for the W4MM USA Joint Munitions Command under the Department of the Army, providing critical oversight on acquisitions supporting the lifecycle management of conventional ammunition and explosives. In this role, she ensures contract compliance, monitors contractor performance, and facilitates technical coordination between program managers and vendors to maintain operational readiness across land, air, and naval forces. Her responsibilities include evaluating deliverables, validating technical specifications, and ensuring adherence to safety and regulatory standards throughout the procurement lifecycle, with a focus on mission-critical systems that sustain combat-effective munitions supplies. While specific contractor names are not publicly available, Mathiesen routinely engages with a diverse range of defense and technical service providers specializing in advanced munitions logistics, systems integration, and defense-related IT infrastructure. Her working relationships are characterized by collaborative oversight, rigorous performance monitoring, and a strong emphasis on mission alignment rather than vendor preference. She maintains consistent communication with prime contractors and subcontractors to ensure timely delivery of services that support the Command’s modernization and supply chain resilience goals. Mathiesen’s procurement portfolio reflects a strict preference for non-set-aside acquisitions, with 100% of her actions awarded under full and open competition. This indicates a focus on technical capability and mission necessity over socioeconomic categorization, aligning with the Command’s priority to secure the most qualified and capable providers to meet stringent national security requirements. Her primary procurement focus lies within NAICS 541519 (Other Computer Related Services), indicating a deep specialization in IT-enabled services such as data analytics, simulation modeling, logistics automation, and secure software development for munitions management systems. She routinely oversees contracts involving cybersecurity, digital inventory tracking, and command-and-control system support—domains essential to modernizing the Army’s ammunition lifecycle infrastructure.