Staff/Sr Staff Systems Engineer
SciTec · Boulder, Colorado, United States · Posted Jun 30, 2026
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SciTec, a wholly owned subsidiary of Firefly Aerospace, is a dynamic non-traditional defense contractor that delivers advanced technologies in support of U.S. National Security and Defense. For over forty-five years, we have supported Department of Defense customers by developing innovative remote sensing algorithms, tools, and techniques to deliver world-class data exploitation capabilities supporting missile defense; intelligence, surveillance, & reconnaissance; space domain awareness; and aircraft survivability missions.
Important Notice: SciTec exclusively works on U.S. government contracts that require U.S. citizenship for all employees. Applicants that do not meet this requirement will not be considered.
We are seeking a Staff or Senior Staff Systems Engineer to support the integration and certification of software for defense applications. You will work within a team delivering modeling and simulation software for Missile Warning and Missile Defense. You will implement systems engineering and testing processes in support of an Agile software development program whose members consist of Scientists, Engineers, and Developers.
The ideal candidate brings strong systems engineering knowledge, the ability to generate software verification and validation test plans, and develop programatic documentation.
Responsibilities
Perform requirements derivation, decomposition, allocation, and traceability
Support internal and external testing to verify system and software conformance to applicable standards
Lead development of software verification test planning to support certification and evaluation for operational use
Maintain MBSE model of system architectures
Collaborate with SciTec staff in systems engineering processes, methods, and best practices
Develop and maintain systems engineering artifacts, including requirements documents, architecture descriptions, certification evidence, and other program documentation as required
Communicate technical concepts clearly through written documentation and verbal briefings
Lead the effort to develop integrated testing architectures and processes
Perform other duties as assigned