MatX
Developing custom silicon chips optimized for large language models.
Company facts
- Founded
- 2023
- Employees
- 100
- Headquarters
- United States
- Type
- Private
- Funding
- Series B · $500M · 2026
Open positions
Software Engineer - Kernels
Designs and optimizes compute kernels that interface directly with MatX's custom hardware for training and running the largest ML/AGI workloads, working alongside ML research and hardware teams. Stack centers on Rust plus low-level optimization (C/C++, assembly, SIMD, GPU/CUDA); hybrid role, 3 days/week in Mountain View.
Hardware Tools Engineer
Builds and evolves the language, compiler, and tooling that MatX hardware engineers use daily — chiefly the open-source Bluespec compiler (Haskell) plus Rust-based hardware libraries, simulators, and design/verification flows — so architects, designers, and verification teams on the AI chip can move faster.
Design Verification Engineer - Compute
Design Verification Engineer at MatX, an AI-chip company, owning subsystem- and chip-level verification of high-performance AI accelerator silicon: building testbenches and tests, driving coverage closure, and leading verification sign-off through design freeze and tapeout using SystemVerilog/UVM, formal and simulation, plus Python/C++.
Bluespec Design Engineer (Haskell)
What MatX Is Building MatX is seeking engineers with strong Haskell skills to join our team as we create best-in-class silicon for high-performance and sustainable GenAI. The successful candidate for this role will be…
Software Engineer, AI Tooling
Builds the AI agent infrastructure at MatX, a custom AI silicon company: making coding agents first-class users of internal infra with their own identities and audited access, running them in ephemeral VMs and no-egress sandboxes, and maintaining a company knowledge base pulled from the monorepo, design docs, and Slack.
Lead Software Engineer, Kernels
MatX is hiring a hands-on tech lead to manage and grow a kernel engineering team while personally designing high-performance compute kernels for its custom AI hardware. Day to day blends people leadership with low-level optimization work (C/C++, assembly, SIMD, GPU/CUDA) in close partnership with ML research and hardware teams.
Security Engineer
Senior Security Engineer at MatX, a startup building AI compute silicon, securing the software, build systems, and cloud infrastructure behind chip design and ML training. A generalist role focused on supply chain/build integrity, adversarial testing, cloud hardening, and writing security tooling in Go/Python/Rust.