# Compiler Engineer-MLIR at Density

- Company: Density
- What the company does: Density shows you how people use your space and helps you get more out of every square foot. Backed by Kleiner Perkins and South Park Commons.
- Company website: https://www.density.io/
- Type: Startups (AI role)
- Level: Mid level
- Location: Mountain View, CA
- Work setup: On-site
- Posted: 2026-06-02
- Apply by: 2026-10-08
- Apply: https://job-boards.greenhouse.io/densityai/jobs/4264633009
- Page: https://www.1752.vc/careers/jobs/density-compiler-engineer-mlir/

## About the role

Own MLIR dialect design and lowering passes for our AI accelerator — defining the high-level tensor IR, async / streaming semantics, and sharded-tensor types that bridge ML frameworks to silicon. Work with chip-design and software teams driving DensityAI's AI accelerator program from first silicon through scale-out.

## What they're looking for

- Exceptional abilities in MLIR dialect design, lowering pass authoring, and rewrite patterns
- 5+ years compiler engineering experience, with hands-on MLIR contributions or equivalent IR-design experience
- Deep understanding of tensor compilation, distributed / sharded execution, and async / streaming dataflow models
- Strong C++ fluency and experience integrating with ML frameworks (PyTorch, JAX, ONNX, TensorFlow, or equivalent)
- (Optional) LLVM backend experience, GPU compiler experience (Triton, IREE, XLA, or equivalent), or open-source MLIR / LLVM contributions

Tags: Software