Senior Applied Research Engineer (AI)

TL;DR

Senior Applied Research Engineer (AI): Building tools to help AI agents learn from experience and self-improve to perform long tasks autonomously with an accent on continuous learning in production. Focus on solving bottlenecks in data efficiency and simulated environments, implementing RL techniques, and optimizing model training.

Location: Must be based in Bellevue, WA or Sunnyvale, CA. Additionally, must be a U.S. person or eligible for export control authorization.

Salary: $182,000 – $242,000

Company

CoreWeave is The Essential Cloud for AI™, providing a high-performance platform for scaling AI infrastructure.

What you will do

• Generate and investigate research ideas to enable continuous learning for agents in production.
• Validate research directions across real customer tasks with the OpenPipe team.
• Develop tools and libraries for RL, such as ART and RULER.
• Build and optimize high-performance LLM tracing dashboards and CUDA kernels.
• Work across the full stack to make self-improving agents a reality.

Requirements

• Bachelor's, Master's, or PhD in CS, ML, Robotics, or related field.
• 4+ years of ML experience (or PhD with 2+ years industry experience) with a focus on model training.
• Proficiency in Python and frameworks like PyTorch or JAX.
• Deep understanding of LLM post-training (SFT, reinforcement learning, on-policy distillation).
• Experience deploying ML models in production environments.
• U.S. person status or eligibility for export control access.

Nice to have

• Research publications or open-source contributions in LLM post-training or agent learning.
• Experience with distributed training and GPU acceleration.
• Proven track record of leading complex technical projects or mentoring other engineers.

Culture & Benefits

• Comprehensive health, dental, and vision insurance (100% paid by company).
• 401(k) with generous employer match and Employee Stock Purchase Program (ESPP).
• Flexible PTO and family-forming support (Carrot, Kinside).
• Catered daily lunch in office and data center locations.
• Entrepreneurial culture with high autonomy and a focus on innovative disruption.