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Freelance Game Simulation Programmer Jobs in California

Luma

Simulation Researcher/Engineer

Redwood City, CA · On-site

You'll help define the simulation substrate Luma uses to train general-purpose robot policies - a ... A game engine, CGI, animation, or photogrammetry background. * Publications at top venues (CoRL ...

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Freelance Game Simulation Programmer information

What is the difference between Freelance Game Simulation Programmer vs Freelance Game Developer?

AspectFreelance Game Simulation ProgrammerFreelance Game Developer
Primary FocusCreating realistic simulations and physics models for gamesDesigning, coding, and implementing overall game features and mechanics
Skills & CredentialsProgramming, physics, mathematics, simulation software knowledgeProgramming, game design, UI/UX, storytelling
Work EnvironmentProject-based, often collaborating with artists and designersEnd-to-end game development, often solo or small teams
Industry UsageUsed in simulation-heavy games, VR, AR, training appsUsed across all game genres and platforms

While both roles involve programming skills, a Freelance Game Simulation Programmer specializes in creating realistic physics and simulation models, whereas a Freelance Game Developer handles the overall game design and development process. The choice depends on whether your expertise is in simulation technology or broader game creation.

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Freelance Game Simulation Programmer jobs near you

Senior Modeling & Simulation Engineer

Singularity Defense Corp.

Gardena, CA • On-site

$100 - $140/hr

Other

Re-posted 22 days ago

Job description

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 testing.

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 chance.

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
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