Star Citizen · Cloud Imperium Games · Mar 2024 – Present 
[StarEngine (4K)]  [Play now]

Live-service multiplayer space simulation on StarEngine — a proprietary C++
engine with a 100+ engineer codebase. 

I own real-time physics simulation subsystems spanning:
- Articulated rigid-body dynamics (ragdolls, spacecraft, ground vehicles)
- Softbody and cloth simulation with sleep/wake stability handling
- Rope, cable, and constraint systems (pulley, winch, distance)
- Multi-body vehicle dynamics on a shared constraint solver
- Physics Time-Slice Async — time-sliced async spawn/despawn architecture
  eliminating frame spikes when hundreds of entities enter and leave a scene
  (analogous to parallel environment reset in RL training rollouts)
- Physics Inspector — internal tooling for introspection and benchmarking
  of physics edge cases

Squadron 42 · Cloud Imperium Games · Mar 2024 – Present 

[Trailer: Hold the line]   [Live GamePlay Reveal]

Cinematic single-player campaign on StarEngine. Focus areas:

- Physics performance optimization — diagnose and eliminate frame-time
  regressions under heavy simulation load via Optick CPU/GPU profiling
- Deterministic physics systems for reproducing and fixing edge-case bugs
- SIMD vectorization (AVX/SSE) for performance-critical solver paths
- Multithreaded physics pipeline with lock-free data structures
- Solver-level debugging on softbody/cloth stability issues (warm-restart,
  sleep/wake, AABB culling)

Regularly collaborate with art, animation, and graphics teams to keep physics
integration seamless while meeting AAA performance targets.

Fate Trigger · ByteDance Games · Oct 2022 – Dec 2023 

[Website]   [Play now]   [Patent]

Multiplayer online action title with production-grade AI-assisted content
tooling and real-time neural rendering. Contributions:

- Synthetic data pipeline — Houdini + Blender + Unreal PCG pipeline for reconstructing
  Rendering/Physically Stable 3D Scenes
- ML Deformers deployment — neural-driven mesh deformation running in-engine
  at frame budget alongside Nanite
- Generative AI content authoring tools — Stable Diffusion integration,
  procedural texture generation, AI-assisted animation workflows
- Physics-aware mesh simplification plugin — patented method preserving both
  visual fidelity and simulation accuracy across PC and mobile platforms
  [Patent]
- Chaos vehicle system + Nanite integration; cross-platform performance tuning

Physics Engine · "The Rest of My Life"

Personal project  · self-directed

A from-scratch rigid-body physics engine built as a lifelong learning project — a way to internalize the mechanics of constraint solvers, contact resolution, and articulated dynamics from first principles. Implemented incrementally:

- Linear Complementarity Problem (LCP) solver — Gauss-Seidel iteration
- Constraint framework with pluggable constraint class hierarchy
- Rigid-body distance constraints
- Ragdoll articulated dynamics with warm-starting
- Penetration constraint resolution
- Manifold generation and contact caching
- Motors, movers, and joint drives

Multiplayer Shooter — UE5 End-to-End Build

Self-directed · UE5 C++

 
A full-cycle UE5 multiplayer FPS built from empty project to shipped
package — a self-directed exercise in traversing the full engine stack:

- Custom C++ gameplay framework on UE5's actor/component model
- Client-server replication for weapons, movement, and damage
- Animation state machines for character locomotion and combat
- Physics-driven interactions and hit detection
- AI opponents with behavior trees
- Level design, lighting, and post-process authoring
- Full-cycle project shipping including packaging and finishing