Lam T.
Simulation & Digital Twin Engineer | Isaac Sim, Omniverse, Unity VR
Need to prove out a factory layout, AGV route, or robot cell in software — before you spend on hardware? I build physics-accurate digital twins in NVIDIA Omniverse & Isaac Sim so you can validate routes, catch collisions, and stress-test the physics while everything is still code. Send me your current sim setup (or the problem you're trying to prove out) and I'll reply with exactly how I'd architect it — the extensions, the physics, and how I'd validate it. Top Rated Plus on Upwork · 100% Job Success · 700+ hours across 6 long-term contracts · ex-Bosch XR Engineer, now on the NVIDIA Omniverse / Isaac Sim stack at Hitachi Digital Services. WHAT I BUILD 1) Industrial digital twins & physics simulation (Omniverse · Isaac Sim · OpenUSD) - Real-time contact-physics heatmaps on NVIDIA Warp GPU kernels - Motion-path authoring for AGVs and forklifts - Deformable-rope / heavy-lift physics on PhysX 5 - 3D Gaussian Splatting reconstruction of real sites into usable scenes 2) Custom Omniverse Kit extensions, end to end - Engine-agnostic, unit-testable backends with isolated UI - Physics validated with headless, bit-for-bit reproducible regression harnesses — so it doesn't silently break on the next update - Delivered as documented tools your team can run after handover 3) Real-time 3D & XR apps (Unity / C# · Meta Quest 2/3 · HoloLens 2) - Industrial AR work-instructions with on-device computer vision - Low-latency stereoscopic video streamed to a VR headset over WebRTC - 3+ years building VR/MR for industrial use WHY CLIENTS HIRE ME - Production-grade, not demos. I ship tested, documented, modular code — not a one-off that breaks on edge cases. - Low hand-holding. You define the goal; I diagnose the architecture, write the code, test the edges, and deploy a working system. - Both sides of the gap. Deep GPU / physics engineering plus the practical sense to turn a messy real-world process into a simulation that actually answers your question. RECENT WORK - NVIDIA Omniverse / Isaac Sim tooling and industrial digital twins at Hitachi Digital Services. - XR engineering (Unity VR/MR, Meta Quest, HoloLens) at Bosch. - Custom Omniverse Kit extensions with GPU physics (Warp, PhysX 5) and reproducible regression harnesses. NEXT STEP Tell me what you're trying to simulate or prove out — I'll reply with a concrete plan. Message me and let's scope it.
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $8.1k
Billed in all: $24,231$24k
$2.7k in the last 6 months
Earnings, last 30 days
Skill rankings: Top 5% in Physics
Ranked by MRR among everyone on Upwork with the skill.
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