Callosum

Accelerator Systems Software - Member of Technical Staff

Callosum
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4 months ago
London, United KingdomSenior
H1B sponsor

Responsibilities

  • Build and maintain kernels, device drivers, and firmware for heterogeneous accelerators.
  • Design and implement accelerator scheduling for kernel launches, dataflow optimization, and resource management across diverse hardware.
  • Optimize execution paths for latency, throughput, and resource utilization across accelerator types.
  • Work with internal teams and hardware vendors to onboard new accelerator platforms.
  • Contribute to low-level runtime software connecting the inference stack with underlying hardware.
  • Own design decisions that influence system performance and reliability.

Requirements

  • Demonstrable interest in a variety of accelerator microarchitectures.
  • Deep experience in kernel development, device driver authoring, or firmware engineering.
  • Familiarity with accelerator programming models such as CUDA, ROCm, or vendor-specific SDKs.
  • Experience with compiler infrastructure such as MLIR or LLVM.
  • Strong debugging skills in environments with limited tooling and incomplete documentation.

Benefits

  • Competitive salary determined by skills and experience.
  • Equity and ownership.
  • Private healthcare.
  • Visa sponsorship and relocation benefits.
  • In-person work at the London office with provided tools, space, and setup.

Categories

Callosum

About Callosum

11-50 employees
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