Controls, Modeling, Simulation, and Analysis Engineer (GN&C Senior Engineer) (ES5)

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Position Description
The Amentum Space Exploration Division (ASED) Guidance Navigation and Control (GN&C) team is a high performing group executing challenging tasks to design and integrate GN&C systems for projects ranging from CubeSats to NASAs Space Launch System (SLS).
We are searching for highly qualified candidates to support the design development and oversight of Golden Dome work in the Control Systems Design and Analysis branch at NASAs Marshall Space Flight Center as a Senior Controls Modeling Simulation and Analysis Engineer. This exciting work will assist external partners with the Design Development Testing and Engineering (DDT&E) of the Golden Dome for America assets including satellite constellations space-based interceptors and directed energy platforms.
Responsibilities include but are not limited to:
Review and analyze the mission design and/or the Attitude Determination and Control System (ADCS) design of Golden Dome providers perform independent verification and/or validation of contractor results where necessary and identify risks in the providers proposed concepts and designs.
Review and co-develop Concepts of Operations (ConOps) for in-space technology demonstration satellite bus contractors and proposed missions including operational modes mission phases state transitions nominal and contingency operations and command and control architecture.
Review analyze and simulate (in Systems Tool Kit (STK) or equivalent) in-space deployer platform trajectories including orbital mechanics validation orbital variation analysis of deployed assets and evaluation of deployment sequencing and phasing strategies.
Review analyze and independently simulate in-space deployer pointing stability performance and detumble requirements for deployed assets including analysis of angular rates momentum management disturbance torques separation dynamics and time-to-stabilization for deployed payloads.
Review analyze and independently simulate pointing accuracy and stability of multiple assets within the Golden Dome architecture including jitter analysis slew rate performance target tracking capabilities line-of-sight stability attitude knowledge and control error budgets and inter-satellite relative attitude coordination.
Review and assist with technology maturation efforts through the Technology Readiness Level (TRL) scale for ultimate incorporation into Golden Dome assets including assessment of development progress identification of technical gaps evaluation of test and validation approaches and recommendations for advancement criteria.
Attend offsite Technical Interchange Meetings (TIMs) with providers and subcontractors to review technical progress assess design maturity provide independent technical evaluation and identify integration risks and mitigation strategies.
Attend regular status meetings with NASA management and critical stakeholders to provide technical briefings communicate risk assessments report on provider performance and coordinate inter-agency technical activities.

Qualifications
A degree in Aerospace Mechanical or Electrical Engineering or related field from an ABET accredited institution is required. Typical experience requirements are the equivalent of a PhD with at least 9 years of experience a masters with at least 13 years of experience or BS with at least 15 years of experience. Must be a US Citizen and have a state STAR/REAL ID/Drivers License that is Federal Government compliant.
Required skills/experience:
Proficiency modeling simulating and analyzing the performance of satellites spacecraft launch vehicles and/or missiles in the time domain using parametric Monte Carlo and statistical techniques.
Demonstrated ability to design ADCS systems (PID state space etc.) and analyze ADCS performance including jitter analysis and stability analysis in the time and frequency domain (Nicols Bode Nyquist Root Locus etc.)
Capability to model spacecraft components/subsystems such as: mass properties Thrust Vector Control (TVC) actuators Reaction Control System (RCS) thrusters reaction wheels slosh pogo rigid and/or flexible body dynamics.
Understanding of and simulation of orbital mechanics and trajectories for spacecraft and launch vehicles in Systems Tool Kit (STK) or equivalent tools.
Programming in MATLAB Simulink and C/C. This includes debugging and improving the efficiency of simulation tools.
Experience in performing software development verification and validation.
Must be detail oriented and self-motivated that can work independently taking projects from start to finish without much oversight.
Must also be able to work collaboratively with other team members both locally and remote at other facilities or vendors.
Strong written and oral communication interpersonal and problem-solving skills.
Must be a US Citizen and have a STAR ID.

Desired skills/experience:
Ability to work problems from first principles including derivation of dynamics equations of motion including both nonlinear equations and linear state equations and integrate subsystem models into larger simulations.
Experience performing trade studies sensitivity and/or Monte Carlo simulation and analyses related to the control of launch vehicles and/or spacecraft.
Programming in other languages such as Python Simscape Multi-body.
Familiarity with and the ability to apply the NASA Technology Readiness Level (TRL) scale.
Experience with creating animations/visualization from results of 3-DoF/6-DoF simulations using tools such as Unreal Engine Systems Tool Kit (STK) etc.

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 #Amentum

Compensation Details:

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-OHara Service Contract Act (SCA) or other employment contracts may include different provisions/benefits.

Original Posting:

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 atLabor Laws Posters.