Performance Engineer, GPU

SignalAI

New York (NY)

Hybrid

USD 280,000 - 850,000

Full time

6 days ago

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Benefits offered by this job

Competitive compensation

Equity donation matching

Generous vacation and parental leave

Flexible working hours

Job summary

Anthropic is seeking a GPU Performance Engineer to architect and optimize the core systems that power Claude and other large language models. You will push the limits of GPU utilization and develop cutting-edge techniques across kernel development and distributed architectures.

The role spans low-level tensor core optimizations to coordinating thousands of GPUs, with strong candidates delivering measurable improvements in production ML systems.

Qualifications

Bachelor's degree or equivalent in a relevant field.
Proven experience optimizing GPU performance at scale.
Strong understanding of GPU architectures and memory systems.

Responsibilities

Architect and implement foundational GPU systems for large language models.
Maximize GPU utilization and inference efficiency at scale.
Develop kernel optimizations and distributed system strategies across many GPUs.

Skills

GPU programming

Performance optimization

Distributed systems

Pair programming

Language models

Education

Bachelor's degree

Tools

CUDA

Triton

CUTLASS

Flash Attention

Nsight

PyTorch

JAX

torch.compile

XLA

Job description

About Anthropic

Anthropic’s mission is to create reliable, interpretable, and steerable AI systems. We want AI to be safe and beneficial for our users and for society as a whole. Our team is a quickly growing group of committed researchers, engineers, policy experts, and business leaders working together to build beneficial AI systems.

About Anthropic

About The Role

Pioneering the next generation of AI requires breakthrough innovations in GPU performance and systems engineering. As a GPU Performance Engineer, you'll architect and implement the foundational systems that power Claude and push the frontiers of what's possible with large language models. You'll be responsible for maximizing GPU utilization and performance at unprecedented scale, developing cutting-edge optimizations that directly enable new model capabilities and dramatically improve inference efficiency. Working at the intersection of hardware and software, you'll implement state-of-the-art techniques from custom kernel development to distributed system architectures. Your work will span the entire stack—from low-level tensor core optimizations to orchestrating thousands of GPUs in perfect synchronization. Strong candidates will have a track record of delivering transformative GPU performance improvements in production ML systems and will be excited to shape the future of AI infrastructure alongside world-class researchers and engineers.

You Might Be a Good Fit If You

Have deep experience with GPU programming and optimization at scale

Are impact-driven, passionate about delivering measurable performance breakthroughs

Can navigate complex systems from hardware interfaces to high-level ML frameworks

Enjoy collaborative problem-solving and pair programming

Want to work on state-of-the-art language models with real-world impact

Care about the societal impacts of your work

Thrive in ambiguous environments where you define the path forward

Strong Candidates May Also Have Experience With

GPU Kernel Development: CUDA, Triton, CUTLASS, Flash Attention, tensor core optimization

ML Compilers & Frameworks: PyTorch/JAX internals, torch.compile, XLA, custom operators

Performance Engineering: Kernel fusion, memory bandwidth optimization, profiling with Nsight

Distributed Systems: NCCL, NVLink, collective communication, model parallelism

Low-Precision: INT8/FP8 quantization, mixed-precision techniques

Production Systems: Large-scale training infrastructure, fault tolerance, cluster orchestration

Representative Projects

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

Deadline to apply: None. Applications will be reviewed on a rolling basis.

The Expected Salary Range For This Position Is

the annual compensation range for this role is listed below.

Annual Salary

$280,000 - $850,000 USD

Minimum education: Bachelor’s degree or an equivalent combination of education, training, and/or experience

Required field of study: A field relevant to the role as demonstrated through coursework, training, or professional experience

Minimum years of experience: Years of experience required will correlate with the internal job level requirements for the position

Location-based hybrid policy: Currently, we expect all staff to be in one of our offices at least 25% of the time. However, some roles may require more time in our offices.

Visa sponsorship: We do sponsor visas! However, we aren't able to successfully sponsor visas for every role and every candidate. But if we make you an offer, we will make every reasonable effort to get you a visa, and we retain an immigration lawyer to help with this.

We encourage you to apply even if you do not believe you meet every single qualification.

How We're Different

We believe that the highest-impact AI research will be big science. At Anthropic we work as a single cohesive team on just a few large-scale research efforts. And we value impact — advancing our long-term goals of steerable, trustworthy AI — rather than work on smaller and more specific puzzles. We view AI research as an empirical science, which has as much in common with physics and biology as with traditional efforts in computer science. We’re an extremely collaborative group, and we host frequent research discussions to ensure that we are pursuing the highest-impact work at any given time. As such, we greatly value communication skills.

Anthropic is a public benefit corporation headquartered in San Francisco. We offer competitive compensation and benefits, optional equity donation matching, generous vacation and parental leave, flexible working hours, and a lovely office space in which to collaborate with colleagues.