NASA Moon Base Space Vehicle Modeling and Simulation Engineer

CACI•Houston, TX

4d•Onsite

About The Position

CACI is seeking Space Vehicle Modeling and Simulation Engineers to support NASA human-rated spacecraft systems at NASA Johnson Space Center in Houston, Texas. The work supports the Moon Base program and NASA space vehicles for lunar surface exploration. Engineers develop mathematical models and simulations, integrate simulations, and develop distributed simulations on Linux PC platforms using the Trick Simulation Environment and Development Toolkit. The role also includes improving models and simulation scenarios, analyzing simulation data to assess system characteristics and performance, enhancing simulation architecture, and supporting model validation and software verification across spacecraft, systems, and subsystems. The position calls for a self-motivated, technically capable team member with strong communication and customer relationship skills, flexibility, and enthusiasm for space exploration. Travel may be up to 10%.

Requirements

U.S. citizenship or permanent residency to access U.S. Government facilities.
Bachelor’s degree in Aerospace Engineering, Computer Engineering, Computer Science, or a related discipline.
Experience in software development, including project design, programming, testing, verification, validation, and documentation.
At least 2 years of experience working with aerospace vehicle simulations and mathematical model development; greater experience is valued.
At least 2 years of experience in one or more spacecraft domains, such as avionics command and data handling, communications, terramechanics, electrical power, environmental control and life support, fluids and thermal, orbital dynamics, robotic dynamics, Guidance, Navigation, and Controls, or mechanical dynamics and control; greater experience is valued.
At least 2 years of experience with simulation and mathematical model verification and validation processes.
At least 2 years of experience with C++ and Python in a Linux environment; greater experience is valued.
Experience with software version control tools such as Git.
Strong computer and software skills in Linux environments.
Ability to manage multiple priorities with minimal supervision.
Highly responsible and team-oriented.
Strong verbal and written communication skills, customer relationship skills, and ability to communicate complex technical ideas.

Nice To Haves

Master’s degree in Aerospace Engineering, Computer Engineering, Computer Science, or Modeling and Simulation, with relevant experience on aerospace software development projects.
At least 5 years of spacecraft systems experience focused on environmental control and life support, and fluids and thermal; greater experience is valued.
Experience with NASA/CACI General-Use Nodal Network Solver (GUNNS).
Experience with simulation and mathematical model validation processes.
Experience with simulation programming and scenario development, such as CACI/NASA Trick simulation.
Experience developing simulations with High Level Architecture (HLA) or other distributed simulation methods.
Experience in multithreaded programming and Time-Triggered Ethernet (TTE).
Experience developing spacecraft simulations using NASA JEOD.

Responsibilities

Develop space vehicle system and subsystem simulation math-model requirements, verify model requirements, and validate simulations and models.
Design and develop math models for spacecraft systems and subsystems, including hardware and software.
Develop distributed simulations.
Develop simulation scenarios to test nominal and off-nominal spacecraft operations.
Analyze simulation data to investigate spacecraft system performance.
Present analysis results and explain their impact on spacecraft performance, vehicle design, and mission design to customers.
Identify and implement improvements to math models and simulation scenarios.
Support continual enhancements to the simulation architecture.
Support model validation and software verification for multiple spacecraft, systems, and subsystems.