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AI Kernel Writer Job at Majestic Labs ai in Los Altos

Majestic Labs ai, Los Altos, CA, USA

Job type: Full Time


Responsibilities



  • Design and implement high-performance compute kernels for AI primitives such as GEMM, attention, normalization, and convolution.

  • Optimize for throughput, latency, and memory hierarchy across heterogeneous compute units (SIMD, matrix engines, DMA).

  • Collaborate with compiler and runtime teams to integrate kernels into Triton, PyTorch, or SYCL pipelines.

  • Profile and tune kernels using tools like Perfetto, VTune, Tracy, or custom simulators.

  • Prototype and evaluate precision formats (FP16/BF16/FP8/e5m2, etc.) and stochastic rounding.

  • Contribute to micro-architecture feedback loops, helping co-design ISA and memory features with the hardware team.

  • Write clear, well-structured, and reusable code (C++/CUDA/Triton/LLVM MLIR).


Requirements



  • Bachelor's or Master's in Computer Science, Computer Engineering, or a related field from a recognized university.

  • Strong background in parallel programming (CUDA, Triton, SYCL, OpenCL, Metal, POSIX Threads, or OpenMP).

  • Experience with optimization of irregular algorithms, such as graph computations or sparse numerical linear algebra, combining high-level data structure design with low-level SIMD and synchronization optimizations.

  • Deep understanding of memory layout, vectorization, thread/block scheduling, and cache behavior.

  • Proficiency in C++11 or higher, with strong knowledge of standard algorithms, data structures, and generic programming paradigms.

  • Experience with code generation for high-performance computations and knowledge of frameworks like BLAS/BLIS/Torch.

  • Skilled in performance analysis and parallel debugging using tools such as Valgrind, GNU Debugger, or CI testing frameworks.

  • Hands‑on experience profiling and optimizing compute or AI workloads (e.g., GEMM, softmax, attention).

  • Solid grasp of numerical stability, precision formats, and mixed precision arithmetic.

  • Collaborative work style with the ability to operate effectively in multicultural, cross-disciplinary environments.


Seniority level



  • Entry level


Employment type



  • Full-time


Job function



  • Marketing, Public Relations, and Writing/Editing


Industries



  • Software Development


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