The Unified Architecture Framework (UAF) and its modeling language, UAFML, together with SysML, are the primary languages for this position: the Senior Systems Engineer will characterize missions, develop digital mission architectures composed of mission threads and mission engineering threads in UAF, and execute threat-informed, quantitative analyses to evaluate operational concepts, assess capability gaps and candidate solutions, inform acquisition, modernization, and resourcing decisions, and quantify mission effectiveness across Coast Guard mission systems, platforms, and systems of systems. Develop and maintain digital mission architectures in UAF/UAFML, including mission threads (MTs) that capture the end-to-end sequence of operational activities and mission engineering threads (METs) that allocate systems, platforms, organizations, and information exchanges to those activities, as baseline and alternative mission architectures.