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++.
Microarchitect and RTL Designer - Compute
Own micro-architecture and RTL for the compute subsystem of MatX's AI accelerator chips — from spec through area/timing closure, design freeze, and tapeout — collaborating with verification, DFT, and physical design teams. Core tech: SystemVerilog, Bluespec, Python, C/C++, synthesis and sign-off flows. Mountain View HQ or remote.
Facilities and Physical Security Manager
What MatX is Building MatX's mission is to make the world’s best AI models run as efficiently as allowed by physics, bringing the world years ahead in AI quality and availability. Your Place Here As Facilities and…
Supply Chain System Manager
What MatX is Building MatX's mission is to make the world's best AI models run as efficiently as allowed by physics, bringing the world years ahead in AI quality and availability. Your place here We're looking for a…
Sourcing Manager
What MatX is Building MatX's mission is to make the world's best AI models run as efficiently as allowed by physics, bringing the world years ahead in AI quality and availability. Your place here We're looking for a…
Contract Manager
What MatX is Building MatX's mission is to make the world's best AI models run as efficiently as allowed by physics, bringing the world years ahead in AI quality and availability. Your place here We're looking for a…
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…
SOC Integration Engineer
A silicon SOC integration engineer who stitches subsystems into the full-chip top-level RTL for MatX's AI training chips, building automation for on-the-fly SOC RTL generation and aligning clock/reset, timing, and floorplan connectivity with physical design. Core tools: SystemVerilog, Python/Perl, and SOC integration/verification flows.
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.
System Software Engineer, Linux Driver and Driver Adjacent
Build the Linux kernel driver stack (PCIe, memory management, DMA, interrupts) and low-level userspace libraries for MatX's AI accelerator silicon, from pre-silicon simulation/emulation/FPGA testing through first-silicon bring-up and performance tuning. Core tech: C, Linux kernel, PCIe, hardware debugging.
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.