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AnthropicAnthropicSan Francisco, CA

Research Engineer, Pre-training

Develops next-generation large language models through research, experimentation, and engineering on pre-training team. Requires strong Python/PyTorch skills, ML expertise, and MS/PhD in related field.

350k – 850k/yr
HybridAI Research

About the role

Key Responsibilities

  • Conduct research and implement solutions in model architecture, algorithms, data processing, and optimizer development
  • Independently lead small research projects while collaborating on larger initiatives
  • Design, run, and analyze scientific experiments to advance understanding of large language models
  • Optimize and scale training infrastructure for efficiency and reliability
  • Develop and improve dev tooling to enhance team productivity
  • Contribute to the entire stack, from low-level optimizations to high-level model design

Qualifications

  • Advanced degree (MS or PhD) in Computer Science, Machine Learning, or related field
  • Strong software engineering skills with proven track record of building complex systems
  • Expertise in Python and experience with deep learning frameworks (PyTorch preferred)
  • Familiarity with large-scale machine learning, particularly language models
  • Ability to balance research goals with practical engineering constraints
  • Strong problem-solving skills and results-oriented mindset
  • Excellent communication skills and collaborative work style
  • Care about societal impacts of work

Preferred Experience

  • Work on high-performance, large-scale ML systems
  • Familiarity with GPUs, Kubernetes, and OS internals
  • Experience with language modeling using transformer architectures
  • Knowledge of reinforcement learning techniques
  • Background in large-scale ETL processes

Sample Projects

  • Optimizing throughput of novel attention mechanisms
  • Comparing compute efficiency of different Transformer variants
  • Preparing large-scale datasets for efficient model consumption
  • Scaling distributed training jobs to thousands of GPUs
  • Designing fault tolerance strategies for training infrastructure
  • Creating interactive visualizations of model internals

Skills

PythonPyTorchTransformersKubernetesGpusMachine LearningLLMsReinforcement LearningDistributed TrainingETL

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