NASA's National Aeronautics and Space Administration (NASA) is seeking to procure technical design services for the development of a two-channel Silicon Drift Detector (SDD) timing and spectroscopy system. The contract is intended to be awarded solely to Noqsi Aerospace, LTD, which possesses the unique expertise necessary to advance the design of the NICER detector currently in use at NASA, making them the only vendor capable of meeting specific NASA requirements. This procurement reflects NASA's commitment to enhancing scientific instrumentation and research capabilities, with performance expected to take place at the NASA Goddard Space Flight Center from December 15, 2024, to September 30, 2025. Interested organizations must submit their capabilities and qualifications in writing to Dorothy Baskin at dorothy.s.baskin@nasa.gov by 11:59 a.m. Eastern Standard Time on February 3, 2025, to be considered for this opportunity.