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Senior Simulation Integration Engineer
The Amentum ESSCA group is seeking a highly skilled Senior Simulation Integration Engineer to join our team in support of the Human Lander System (HLS) project at Marshall Space Flight Center. The ideal candidate will possess extensive experience in the design, development, and utilization of software simulations and hardware emulations.
The responsibilities of this position include:
Supporting Hardware/Software Integration activities on the Human Landing Systems (HLS) Program.
Conduct independent engineering assessments of software development activities and products from requirements through flight operations phases to improve the quality of the flight software and reduce the risk of in-flight, software-induced operational anomalies.
Provide support for HLS as Emulator/Simulator Lead to manage the technical development of emulators and simulators required for internal and Cross Program Development and V&V activities.
Communicate technical capabilities of Emulator/Simulation deliverables to the broader team.
Support meetings as a subject matter expert to facilitate communication between Emulator/Simulation stakeholders regarding capabilities needed, design, I&T, delivery, operation, and discrepancy reporting.
Coordinate with stakeholders and providers regarding Emulator/Simulation Pre-ship checkout and the content of the Acceptance Data Package.
Participate in various reviews such as PSRs, TRRs, involving Emulator/Simulation.
Assist receiving parties with integrating and accepting emulators/simulators for usage in applicable facilities and coordinate troubleshooting efforts.
Support internal, external, and project level reviews, working groups, vendor technical interchange meetings, milestone reviews, peer reviews, code walkthroughs, and other project meetings associated with the software delivery life cycle.
Provide regular reports to the Group Lead and NASA customers.
Identify and communicate risks to project management.
Required Skills:
Expertise in Cross-Program SIM-to-SIM (emulators) Integration and Testing (Hardware in the loop, all SIMs, High-Level Architecture (HLA)).
Extensive experience with software end-to-end testing and hardware-in-the-loop (HWIL) testing for avionics and software systems.
In-depth knowledge of software and hardware integration, including the design, development, and utilization of hardware/software simulators and emulators for integration, test, and verification of various systems and subsystems.
Working knowledge of software certification, spacecraft avionics architectures, and flight software implementation.
Experience with spacecraft HITL/HOOTL testbeds, writing requirements for spacecraft and/or subsystem verification and validation, and spacecraft-based RF communication design and testing.
Proficiency with spacecraft implementation of ethernet communication protocols and architectures.
Experience developing technical procedures, non-conformance documentation, and specifications.
Strong knowledge of the architecture of software simulations and emulators, and the integration of heterogeneous software simulations and hardware emulations.
Familiarity with software languages such as C, C++, shell scripting, XML, Java, or other object-oriented languages.
Excellent oral, written, interpersonal, communication, and customer relation skills – must be able to clearly define and describe technical subjects to peers across various engineering disciplines.
Working knowledge of NASA NPR 7150.2 and government standards and requirements.
Ability to work with minimal oversight, multi-task, and be proactive in between formal assignments.
Working knowledge of digital/analog electronics, sensors, transducers, instrumentation, and wiring harnesses, as well as aerospace or aviation avionics closed-loop control systems.
General knowledge of flight avionics test data analysis.
Experience with systems engineering for highly complex systems that operate with real-time, embedded software control.
General knowledge of Agile or other similar software methodologies.
Must be able to work on-site at Marshall Space Flight Center.
Essential Functions
Work Environment:
Office environment. Requires ability to provide clear, concise, accurate and timely communication, both verbally and in writing (100%). Requires ability to interact professionally with co-workers, management, and client (100%). Requires travel in the domestic USA (5%). Requires ability to work at a computer for long periods of time (100%).
Physical Requirements:
Requires sitting for extended periods of time in meetings with peers, management, and with our client at NASA facilities to discuss technical issues (10%). Also, requires sitting for extended periods of time at a desk to write reports and perform engineering tasks (80%). Requires ability to use stairs or elevators for access between floors and multiple buildings at NASA and our facilities (10%).
Equipment and Machines:
Requires ability to operate a personal computer, a telephone, fax machine, copier, calculator, and other general office equipment (100%).
Attendance:
Normal workday 7:30-4:30, Monday thru Friday. Minimal overtime may be required (10%) to meet schedule milestones and to support technical demands of the job. Regular attendance is a necessity, and adequate arrangements for delegating duties during absences are required.
Other Essential Functions:
The ability to work independently with minimal supervision, and to make rational decisions, and to exercise good judgment is essential (100%). Grooming and dress must be appropriate for the position and must not impose a safety risk/hazard to the employee or others.
Proof of U.S. Citizenship is required.
#ESSCA #ASED
Compensation Details:
0.01
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 Overview:
Our health and welfare benefits are designed to support you and your priorities. Offerings include:
Health, dental, and vision insurance
Paid time off and holidays
Retirement benefits (including 401(k) matching)
Educational reimbursement
Parental leave
Employee stock purchase plan
Tax-saving options
Disability and life insurance
Pet insurance
Note: Benefits may vary based on employment type, location, and applicable agreements. Positions governed by a Collective Bargaining Agreement (CBA), the McNamara-O'Hara Service Contract Act (SCA), or other employment contracts may include different provisions/benefits.
Original Posting:
02/19/2026 - Until Filled
Amentum 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 at Labor Laws Posters.
