Harmonic

Research Engineer, Training & Inference

Harmonic
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6 months ago
Palo Alto, CA, USAMid Level
H1B sponsor

Base Salary

$200k - $450k/yr

Responsibilities

  • Maintain and optimize proprietary reinforcement learning training and serving infrastructure across the full stack.
  • Improve reinforcement learning throughput from data generation through model training using sharded multi-node training and inference algorithms.
  • Optimize inference engines, routers, schedulers, and custom kernels for high-throughput reinforcement learning and low-latency LLM production traffic.
  • Identify and resolve distributed-cluster performance bottlenecks while optimizing throughput and memory efficiency for multi-billion-parameter models.

Requirements

  • Bachelor’s degree in Computer Science or a related technical field, or equivalent industry experience.
  • At least 2 years of relevant hands-on industry experience.
  • Proficiency in Python and experience building or maintaining components within ML frameworks such as PyTorch, JAX, or TensorFlow.
  • Understanding of distributed training concepts and collective communication primitives such as NCCL, or practical experience deploying and profiling models on GPU-accelerated cloud infrastructure.
  • Preferred qualifications include an MS or PhD, 5+ years of relevant experience, C++ proficiency, kernel optimization experience, scalable inference deployment, FSDP or tensor-parallel sharding on multi-node GPU clusters, and reinforcement learning systems design experience.

Benefits

  • Unlimited PTO.
  • 401(k) matching.
  • Employer-paid health, vision, and dental benefits for employees, with 50% dependent coverage.
  • Health Savings Account available for qualifying health plans.

Tech Stack

CC++PythonPyTorchTensorFlow

Categories

Harmonic

About Harmonic

11-50 employees

We are forging the worlds most advanced mathematical reasoning engine

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