Justin Lebar is a systems engineer who works at the deepest layers of the ML stack — GPU compilers (XLA, Triton, CUDA/clang, LLVM) — and can explain how invisible compiler bugs silently corrupt AI workloads. His recent work using AI agents to find hundreds of LLVM and NVIDIA ptxas miscompiles in a single afternoon makes his session directly relevant to anyone building or deploying ML infrastructure at scale.

Public activity researched automatically · as of Jun 2026