Core Physics Engineer

Jobtailor; Greater London; On-site; GBP 85,000 - 120,000; Full time

Job summary

Jobtailor seeks a physics-based simulation expert to advance Genesis-World and deliver production-ready capabilities for Genesis AI. You will drive end-to-end research from algorithm development to tested, documented code, and push performance with large timesteps and structure-aware solvers.

The role emphasizes robotics-inspired simulation, HPC proficiency on CPU/GPU, and validating results against real data, with opportunities to collaborate academically and contribute to open-source physics

Qualifications

• Strong background in physics-based simulation for robotics or related fields.
• Knowledge of constrained optimization and numerical integration of stiff systems.
• Track record of shipping simulation code used beyond its authors.
• Solid HPC programming on CPU and/or GPU.
• Practical understanding of numerical-method performance.
• Publications in simulation, graphics, or robotics are a bonus.
• Contributions to an open-source physics engine are a bonus.

Responsibilities

• Push the physics of Genesis-World forward and ship production-ready capabilities.
• Apply research end-to-end from algorithm development to tested code.
• Improve simulation speed with bigger timesteps and efficient solvers.
• Expand physics coverage to water, deformation, and organ models.
• Validate implementations against analytical forms, other engines, and real data.
• Collaborate with academic partners on groundbreaking research.

Skills

Physics-based simulation

Python programming

HPC programming

Algorithm development

Constrained optimization

Tools

Multi-Physics Solvers

Open-Source Physics Engine

HPC

Job description

• Push the physics of Genesis-World forward
• Ship production-ready simulation capabilities for Genesis AI's internal needs
• Apply research end-to-end, from algorithm development to merged, tested, and documented code
• Improve simulation speed through larger stable timesteps, selective fidelity, and structure-aware solvers
• Expand physics coverage to water, human animation, airflow, gravel, tendons, and organs
• Improve fidelity of contact, friction, deformation, energy, actuation, and material models
• Build extensible, coupled multi-physics solvers and support an open solver ecosystem
• Improve scalability from workstation to factory scale and eventually city scale
• Develop physics level-of-detail, heterogeneous environments, adaptive timesteps, coupled solvers, scalable constraint solvers, unified contact resolution, and closed kinematic-loop handling
• Write physics in Python with Quadrants targeting multiple hardware backends
• Validate implementations against analytical closed forms, other engines, and real-world data
• Collaborate occasionally on groundbreaking research through academic partnerships

Requirements

• Strong background in physics-based simulation, preferably related to robotics, including RBD, FEM, MPM, SPH, IPC, XPBD, VBD, and ABD
• Knowledge of constrained optimization and numerical integration of stiff systems
• Track record of shipping simulation code relied upon by others, in an engine, industry, or research codebase used beyond its authors
• Solid HPC programming on CPU and/or GPU
• Practical understanding of numerical-method performance beyond complexity classes
• Rigor in validation using analytical closed forms, cross-engine consistency, and real-world data
• Publications in simulation, graphics, or robotics venues are a bonus
• Contributions to an open-source physics engine are a bonus

Core Competencies

Demonstrates expertise in physics-based simulation, algorithm development, and validation, with a strong focus on shipping production-ready code and improving simulation fidelity and performance. Proficient in Python programming for multi-physics solvers and capable of collaborating on advanced research initiatives.

Highest-signal resume keywords

• Physics-Based Simulation
• HPC Programming
• Numerical Integration
• Algorithm Development
• Python Programming

ATS Optimization Keywords

Hard Skills

• Rigid Body Dynamics (RBD)
• Finite Element Method (FEM)
• Material Point Method (MPM)
• Smoothed Particle Hydrodynamics (SPH)
• Implicit Particle Contact (IPC)
• Extended Position Based Dynamics (XPBD)
• Variable Density (VBD)
• Analytical Validation
• Simulation Code Development
• Constrained Optimization

Industry Keywords

• Robotics
• Simulation
• Graphics
• Research Codebase
• Academic Partnerships

Tools & Technologies

• Multi-Physics Solvers
• Open-Source Physics Engine
• High-Performance Computing (HPC)
• Real-World Data Validation
• Cross-Engine Consistency