The Department of Defense, through the Naval Information Warfare Center (NIWC) Pacific, is soliciting proposals for engineering services related to the Network Integration Engineering Facility (NIEF). The procurement aims to provide comprehensive support for Command, Control, Communications, Computer, Intelligence, Surveillance, and Reconnaissance (C4ISR) systems, including program management, system design, prototype development, and lifecycle support. These services are critical for ensuring the effective integration and operational readiness of advanced military communication systems. Interested parties should note that the deadline for submitting questions is October 28, 2025, and proposals must be submitted by November 17, 2025, with inquiries directed to Aica Dizon at aica.m.dizon.civ@us.navy.mil or Emily Green at emily.f.green.civ@us.navy.mil.