Software Engineer, Large Scale Pre-Training Performance

We’re looking for a Software Engineer to re-define efficient training of frontier LLMs at massive scale. This role offers an opportunity to influence the design of frontier LLM models, and drive an effort to ensure efficient training and inference.

Key responsibilities:

• Being responsible for Pre-Training efficiency and optimising the performance of the latest models on Google’s fleet of hardware accelerators - throughout the entire LLM research, training and deployment lifecycle.

• Being responsible for guiding model design to ensure inference-efficiency.

• Greatly improving the performance of LLM models on hardware accelerators by optimizing at all levels, including developing custom kernels when necessary.

• Collaborating with the compiler, framework, and platform teams. And ensure efficient training at industry-largest scale.

• Profile models to identify performance bottlenecks and opportunities for optimization.

• Develop low-level custom kernels for maximum performance of the most critical operators.

• Collaborating with research teams by enabling new critical operators in advance of their availability in frameworks and compilers.

You're an engineer looking to re-define efficient training of frontier LLMs at massive scale and have:

• A proven track record of critical contributions to the distributed training of LLMs at 1e25 FLOPs scale on modern GPU/TPU clusters  

• Experience in programming hardware accelerators GPU/TPUs via ML frameworks (e.g. JAX, PyTorch) and low-level programming models (e.g. CUDA, OpenCL)

• Experience in leveraging custom kernels and compiler infrastructure to improve performance on hardware

• Experience with Python and neural network training (publications, open-source projects, relevant work experience, etc.)

The US base salary range for this full-time position is between $235,000 - $350,000 + bonus + equity + benefits. Your recruiter can share more about the specific salary range for your targeted location during the hiring process.

Application deadline: July 31st, 2025

Note: In the event your application is successful and an offer of employment is made to you, any offer of employment will be conditional on the results of a background check, performed by a third party acting on our behalf. For more information on how we handle your data, please see our Applicant and Candidate Privacy Policyopen_in_new.

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