Full Stack LLM Engineer - Toronto - Cerebras

    Cerebras
    Cerebras Toronto

    5 days ago

    Description

    Cerebras Systems builds the world's largest AI chip, 56 times larger than GPUs. Our novel wafer‑scale architecture provides the AI compute power of dozens of GPUs on a single chip, with the programming simplicity of a single device. This approach allows Cerebras to deliver industry‑leading training and inference speeds and empowers machine learning users to effortlessly run large‑scale ML applications, without the hassle of managing hundreds of GPUs or TPUs.

    Cerebras' current customers include top model labs, global enterprises, and cutting‑edge AI‑native startups. OpenAI recently announced a multi‑year partnership with Cerebras, to deploy 750 megawatts of scale, transforming key workloads with ultra high‑speed inference.

    Thanks to the groundbreaking wafer‑scale architecture, Cerebras Inference offers the fastest Generative AI inference solution in the world, over 10 times faster than GPU‑based hyperscale cloud inference services. This order of magnitude increase in speed is transforming the user experience of AI applications, unlocking real‑time iteration and increasing intelligence via additional agentic computation.

    About the Role


    We are seeking a versatile and experienced engineer to join our Inference Core Model Bringup team. This team is responsible to rapidly bring up state‑of‑the‑art open‑source models (like LLaMA, Qwen, etc) or customer‑provided proprietary models on our Cerebras CSX systems. Success in this role requires a system‑minded generalist who thrives in fast‑paced bring‑up environments and is comfortable working across the entire Cerebras software stack.

    Your work will play a critical role in achieving unprecedented levels of performance, efficiency, and scalability for AI applications.

    Responsibilities

    • Contribute to the end‑to‑end bring up of ML models on Cerebras CSX systems.
    • Work across the stack: model architecture translation, graph lowering, compiler optimizations, runtime integration, and performance tuning.
    • Debug performance and correctness issues spanning model code, compiler IRs, runtime behavior, and hardware utilization.
    • Propose and prototype improvements across tools, APIs, or automation flows to accelerate future bring ups.

    Skills & Qualifications

    • Bachelor's, Master's, or PhD in Computer Science, Engineering, or a related field.
    • Comfort navigating the full AI toolchain: Python modeling code, compiler IRs, performance profiling, etc.
    • Strong debugging skills across performance, numerical accuracy, and runtime integration.
    • Experience with deep learning frameworks (e.g., PyTorch, TensorFlow) and familiarity with model internals (e.g., attention, MoE, diffusion).
    • Proficiency in C/C++ programming and experience with low‑level optimization.
    • Proven experience in compiler development, particularly with LLVM and/or MLIR.
    • Strong background in optimization techniques, particularly those involving NP‑hard problems.

    What We Offer

    • Competitive salary and benefits package.
    • Opportunities for professional growth and career advancement.
    • A dynamic and innovative work environment.
    • The chance to work on cutting‑edge technologies and make a significant impact on the future of AI.

    This offer is contingent upon Cerebras successfully obtaining an export license from the U.S. Department of Commerce's Bureau of Industry and Security authorizing the release to you of certain software source code and/or technology that is subject to the Export Administration Regulations. However, we can make no assurances with respect to the final disposition of an export license application.

    Why Join Cerebras

    • Build a breakthrough AI platform beyond the constraints of the GPU.
    • Publish and open source their cutting‑edge AI research.
    • Work on one of the fastest AI supercomputers in the world.
    • Enjoy job stability with startup vitality.
    • Our simple, non‑corporate work culture that respects individual beliefs.

    Read our blog: Five Reasons to Join Cerebras in 2026.


    Apply today and become part of the forefront of groundbreaking advancements in AI

    Cerebras Systems is committed to creating an equal and diverse environment and is proud to be an equal opportunity employer. We celebrate different backgrounds, perspectives, and skills. We believe inclusive teams build better products and companies. We try every day to build a work environment that empowers people to do their best work through continuous learning, growth and support of those around them.


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