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Character.AI

Research Engineer, ML Systems (All Industry Levels)

Character.AI
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over 1 year ago
Foster City, CA, USAEntry Level / Mid Level / Senior
H1B Sponsor

Base Salary

$225k - $400k/yr

Responsibilities

  • Optimize GPU performance for AI training and inference systems.
  • Write efficient Triton kernels tailored for specific models and hardware.
  • Develop algorithms to enhance serving cache hit rates.
  • Train and distill large language models to improve latency and engagement.
  • Build scalable distributed reinforcement learning from human feedback (RLHF) systems.

Requirements

  • PhD or equivalent research experience in a relevant field.
  • Proficient in writing clean production system code.
  • Strong understanding of modern machine learning techniques, including reinforcement learning and transformers.
  • Demonstrated track record of innovative ML systems projects.
  • Comfortable with model development code in PyTorch.

Tech Stack

DockerKubernetesPyTorch

Categories

AI & MLData Science