Amentum is a leading provider of engineering scientific and program management support services to some of the top agencies in the U.S. government including the Defense Advanced Research Projects Agency DARPA National Aeronautics and Space Administration NASA the Department of Homeland Security DHS and the intelligence community.The mission of DARPAs Tactical Technology Office TTO is to reimagine every aspect of military hardware design development test manufacture and sustainment - with a focus on rapid affordable and scalable deployment - to create and prevent technological surprise. TTOs goal is to demonstrate compelling hardware at the smallest scale that traces to disruptive capability with designs that reduce risk and cost by managing complexity and can be manufactured responsively and affordably. Additional information on TTO is available here httpswww.darpa.milaboutofficestto.Amentum is currently seeking a mid- to senior-level engineer scientist with experience working in both the TSSCI and SAP environments at least 5 years of experience. This is a full-time position supporting a classified effort in which 50 of the time will be dedicated to space-based communications and the other 50 of the time will be dedicated to test planning and execution. This position will be based on-site at the client location Arlington VA Ballston area with some travel local andor ColoradoCalifornia required at least twice a quarter. Annual salary between 170-240K depending on qualifications and experience.Job Duties and ResponsibilitiesSupport a government program manager PM in developing space-based program concepts providing oversight to ongoing space-based programs and effortsLead 2x year Mission Integration Working Groups across 15-20 unique organizations support for these meetings will include defining common security baseline coordinating agenda speakers reviewing test plans and modeling and simulationServe as a test lead to run Test Readiness Reviews TRRs for major program objectives when final systems are ready for test work with security to make sure all barriers for testing are clearWork with contractors after individual test events to review data products and make any updates or changes to mission test objectives based on data gathered learned through each individual testProvide overarching support to program to include attending biweekly calls for performers attending major reviews drafting PowerPoint charts and memorandums for DARPA and transition partners attending transition partner meetings and internal DARPA team meetingsRequired QualificationsMasters degree or higher - substantial relevant occupational experience ~10 or more years may be considered in lieu of degree requirementAt least 5 years relevant experienceActive US Government Top Secret Security Clearance with ability to obtain SCI access. Please note US Citizenship is required to obtain and maintain a security clearance.Working knowledge of space-based communications architectures to include ground entry points radios and integration of hardware and software into a systemExperience working with transition partners to include but not limited to the U.S. Air Force NASA Space Force NRO and SSCUnderstanding of the methodologies to send data throughout a mission using both secure and open meansExperience in space-based test planning and execution to include defining test objectives measures of performance and developing detailed test plan for life of missionExperience leading test working groups for fully integrated space systems with multiple payloads and multiple government industry and lab partnersExperience in defining test objectives and using a variety of sensor and data collection methodologies to complete testingPreferred QualificationsPrior DARPA experiencePhD in a relevant field Compensation Details170K - 240K The compensation range or hourly rate listed for this position is provided as a good-faith estimate of what the company intends to offer for this role at the time this posting was issued. Actual compensation may vary based on factors such as job responsibilities education experience skills internal equity market data applicable collective bargaining agreements and relevant laws.Benefits OverviewOur health and welfare benefits are designed to support you and your priorities. Offerings includeHealth dental and vision insurancePaid time off and holidaysRetirement benefits including 401k matchingEducational reimbursementParental leaveEmployee stock purchase planTax-saving optionsDisability and life insurancePet insuranceNote Benefits may vary based on employment type location and applicable agreements. Positions governed by a Collective Bargaining Agreement CBA the McNamara-OHara Service Contract Act SCA or other employment contracts may include different provisionsbenefits. Original Posting03062026 - Until FilledAmentum anticipates this job requisition will remain open for at least three days with a closing date no earlier than three days after the original posting. This timeline may change based on business needs. Amentum is proud to be an Equal Opportunity Employer. Our hiring practices provide equal opportunity for employment without regard to race sex sexual orientation pregnancy including pregnancy childbirth breastfeeding or medical conditions related to pregnancy childbirth or breastfeeding age ancestry United States military or veteran status color religion creed marital or domestic partner status medical condition genetic information national origin citizenship status low-income status or mental or physical disability so long as the essential functions of the job can be performed with or without reasonable accommodation or any other protected category under federal state or local law. Learn more about your rights under Federal laws and supplemental language atLabor Laws Posters.