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 Requirements Bachelor’s degree in Engineering, Computer Science, Mathematics, Physical Sciences, or a related technical field 2+ years of professional experience in systems engineering Strong attention to detail and ability to manage complex technical information Excellent verbal and written communication skills Ability and willingness to work on site in Boulder, Colorado Ability to obtain and maintain a DoD SECRET security clearance Candidates who have one or more of the following skills will be preferred Active DoD SECRET clearance Experience supporting certification, evaluation, or operational approval of software or communications systems Experience supporting systems engineering programs in the defense or aerospace sectors Familiarity with Python Experience with Model-Based Systems Engineering (MBSE) Familiarity with SysML and tools such as Cameo / MagicDraw Academic credentials or professional certification in systems engineering (e.g., INCOSE) *Resumes, Cover Letters, and Applications which are generated by AI will not be considered for employment. Colorado Residents: In any materials you submit, you may redact or remove age-identifying information such as age, date of birth, or dates of school attendance or graduation. You will not be penalized for redacting or removing this information. Benefits SciTec offers a highly competitive salary and benefits package, including: 4% Safe Harbor 401(k) match 100% company paid HSA Medical insurance, with a choice of 2 buy-up options 80% company paid Dental insurance 100% company paid Vision insurance 100% company paid Life insurance 100% company paid Long-term Disability insurance Short-term Disability insurance Annual Profit-Sharing Plan Discretionary Performance Bonus Paid Parental Leave Generous Paid Time Off, including Holiday, Vacation, and Sick Pay Flexible work hours The pay range for this position is $102,000 - $157,000 / year. SciTec considers several factors when extending an offer of employment, including but not limited to the role and associated responsibilities, a candidate's work experience, education/training, and key skills. This is not a guarantee of compensation. SciTec is proud to be an Equal Opportunity employer. VET/Disabled.