Senior Modeling & Simulation Engineer

Posted Yesterday
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Gardena, CA, USA
In-Office
175K-230K Annually
Senior level
Aerospace • Hardware • Defense
The Role
Lead development of high-fidelity 6-DOF flight and physics simulations for missile flight, guidance, navigation, and control validation. Build real-time physics integrations, Monte Carlo and hardware-in-the-loop testing, closed-loop infrastructure, sensor models, scenario tools, visualization, and performance-analysis systems. Ensure simulation fidelity, determinism, and performance across varied operating conditions while collaborating with flight software, autonomy, and hardware teams.
Summary Generated by Built In

About the Company:

We are a stealth-mode Aerospace & Defense startup headquartered in Gardena, CA. Our founding team hails from SpaceX, Anduril, and Lockheed Martin, and we are backed by Joint Staff-level military leadership and several Silicon Valley firms. With a world-class business development & leadership team already in place, we are well positioned to capitalize on already overwhelming demand.



Job Overview:

As a GNC Engineer focused on Simulations, you will lead the development of high-fidelity physics-based simulations for end-to-end missile flight and guidance validation. These simulations serve as a digital proving ground for our flight software, autonomy stack, and control systems—enabling us to iterate rapidly and validate in silico what would otherwise require expensive, slow, or impossible real-world testi

ng.You’ll own simulation architecture, real-time physics integration, and testbed development. If you’re comfortable writing performant simulation code in Rust and Python, and you’re looking to do impactful work on a system that must work the first time, this is your chan


Key Responsibilities:

  • Design high-performance 6-DOF flight and physics simulations
  • Build simulation components that replicate real-world dynamics and sensor behavior
  • Integrate guidance, navigation, and control (GNC) logic into full-stack simulations
  • Develop Monte Carlo, Hardware-in-the-Loop (HITL), and closed-loop test infrastructure
  • Collaborate closely with flight software, autonomy, and hardware teams to ensure simulation fidelity matches real-world constraints.
  • Create tooling to support scenario authoring, data visualization, and performance analysis.
  • Own simulation pipeline performance and determinism across a wide range of conditions.

Basic Qualifications:

  • Bachelor's degree in Computer Science or a related technical field
  • 7+ years of experience building simulations or numerical modeling frameworks
  • Proficient in Rust and Python for performance-critical and test-driven development
  • Understanding of rigid body dynamics, kinematics, numerical integration, and physics
  • Experience building tools for flight dynamics, aerospace simulation, or autonomous systems
  • Proficiency with compiled (e.g. C++, Rust) and scripted (e.g. Python) languages

Preferred Qualifications:

  • Experience with Monte Carlo testing, sensor emulation, and closed-loop control validation
  • Familiarity with real-time systems, latency-sensitive architectures, or distributed simulation
  • Experience deploying or validating autonomous systems (missiles, drones, satellites, or vehicles)
  • Familiarity with Rust game engines or physics libraries (e.g., Rapier, Bevy)
  • Exposure to 3D rendering for simulation visualization (e.g., WebGL, OpenGL, Three.js)
  • Contributions to aerospace open source or simulation frameworks (e.g., JSBSim, Gazebo)


Itar Requirements

  • To conform to U.S. Government export regulations, applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (aka green card holder), (iii) Refugee under 8 U.S.C.1157, or (iv) Asylee under 8 U.S.C.1158, or be eligible to obtain the required authorizations from the U.S. Department of State. Learn more about the ITAR


Compensation:
Salary: $175000- $230000 + Equity + Benefits ( Healthcare, Vision, Dental, 401k, and Lunch)

Skills Required

  • Bachelor's degree in Computer Science or a related technical field
  • 7+ years of experience building simulations or numerical modeling frameworks
  • Proficiency in Rust and Python for performance-critical and test-driven development
  • Understanding of rigid body dynamics, kinematics, numerical integration, and physics
  • Experience building tools for flight dynamics, aerospace simulation, or autonomous systems
  • Proficiency with compiled languages such as C++ or Rust and scripted languages such as Python
  • Experience with Monte Carlo testing, sensor emulation, and closed-loop control validation
  • Familiarity with real-time systems, latency-sensitive architectures, or distributed simulation
  • Experience deploying or validating autonomous systems such as missiles, drones, satellites, or vehicles
  • Familiarity with Rust game engines or physics libraries such as Rapier or Bevy
  • Exposure to 3D rendering for simulation visualization, such as WebGL, OpenGL, or Three.js
  • Contributions to aerospace open source or simulation frameworks such as JSBSim or Gazebo
  • Must meet applicable ITAR eligibility requirements or be eligible to obtain required U.S. Department of State authorizations
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The Company
126 Employees
Year Founded: 2023

What We Do

Singularity Defense is a U.S. aerospace and defense innovator developing scalable, cost-effective air-defense technologies and low-cost interceptor systems to counter modern, mass-produced aerial threats. The company engineers counter-weapon systems at scale to protect people on the battlefield and at home, with a mission to bring warfighters home and keep cities safe through affordable defenses for the most urgent security challenges.

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