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Performance Engineer, GPU

AnthropicSan Francisco, CA | New York City, NY | Seattle, WAAI Research & Engineering
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Salary
Not listed
Job type
Full-time
Posted
22 Sept 2025
Status
Open · checked 7d ago

About this role

The GPU Performance Engineer role at Anthropic involves architecting and implementing foundational systems that power Claude, operating out of San Francisco, CA, New York City, NY, or Seattle, WA. This position suits professionals experienced in optimizing machine learning hardware and software stacks to advance large language model capabilities.

Role Overview

Pioneering the next generation of artificial intelligence requires breakthrough innovations in GPU performance and systems engineering. As a GPU Performance Engineer, candidates will maximize GPU utilization and performance at an unprecedented scale, developing cutting-edge optimizations that enable new model capabilities and improve inference efficiency. Working at the intersection of hardware and software, the role implements state-of-the-art techniques spanning from custom kernel development to distributed system architectures.

Key Responsibilities

Co-design attention mechanisms and algorithms for next-generation hardware architectures.
Develop custom kernels for emerging quantization formats and mixed-precision techniques.
Design distributed communication strategies for multi-node GPU clusters.
Optimize end-to-end training and inference pipelines for frontier language models.
Build performance modeling frameworks to predict and optimize GPU utilization.
Implement kernel fusion strategies to minimize memory bandwidth bottlenecks.
Create resilient systems for planet-scale distributed training infrastructure.
Profile and eliminate performance bottlenecks in production serving infrastructure.
Partner with hardware vendors to influence future accelerator capabilities and software stacks.

Requirements

Deep experience with GPU programming and optimization at scale.
Ability to navigate complex systems ranging from hardware interfaces to high-level machine learning frameworks.
Bachelor’s degree in a relevant field or an equivalent combination of education, training, and experience.
Alignment with an in-office hybrid policy requiring staff to be in one of the company offices at least 25% of the time.

Nice to Have

Experience with GPU Kernel Development using CUDA, Triton, CUTLASS, Flash Attention, and tensor core optimization.
Familiarity with ML Compilers and Frameworks such as PyTorch and JAX internals, torch.compile, XLA, and custom operators.
Background in Performance Engineering covering kernel fusion, memory bandwidth optimization, and profiling with Nsight.
Knowledge of Distributed Systems including NCCL, NVLink, collective communication, and model parallelism.
Expertise in Low-Precision methods such as INT8 and FP8 quantization alongside mixed-precision techniques.
Background in Production Systems involving large-scale training infrastructure, fault tolerance, and cluster orchestration.

Skills and Tools

PyTorch
CUDA, Triton, CUTLASS, Flash Attention
XLA, torch.compile
NCCL, NVLink

Salary and Benefits

Annual salary range: $280,000 to $850,000 USD.
Competitive compensation and benefits package.
Optional equity donation matching.
Generous vacation and parental leave.
Flexible working hours and collaborative office spaces.
Visa sponsorship available for qualifying candidates.

About the Company

Anthropic is a public benefit corporation on a mission to create reliable, interpretable, and steerable AI systems that remain safe and beneficial for society. Operating as a single cohesive team focused on large-scale research efforts, the organization treats AI research as an empirical science comparable to physics and biology.

How to Apply

Interested candidates should review the position details and submit their application directly on the official Anthropic careers page.

Skills and tech stack

PyTorch

Questions candidates ask

What locations is the GPU Performance Engineer role based in?

The position is available in San Francisco, CA, New York City, NY, or Seattle, WA.

What is the annual salary range for this position?

The annual salary range is $280,000 to $850,000 USD.

What are the education and experience prerequisites?

Candidates need a Bachelor’s degree in a relevant field or an equivalent combination of education, training, and experience, with years of experience correlating to internal job level requirements.

Does Anthropic offer visa sponsorship for this job?

Yes, Anthropic sponsors visas for this role and retains an immigration lawyer to assist candidates who receive an offer.

What is the hybrid work policy at Anthropic?

Anthropic maintains a location-based hybrid policy expecting all staff to be in one of the company offices at least 25% of the time.

Ready to apply?

The application is on the official Anthropic careers page.

Apply on company site