7 reinforcement learning engineer jobs at 7 companies in Washington

3w
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Senior Machine Learning Engineer, Bidding Science
Mountain View or Washington
$160k-$239k/yr HybridFull Time
Unity
UnityNYSE: U: Provides software for creating real-time 3D interactive content.
Expertise in machine learning, reinforcement learning, control theory, large-scale data analysis, online experimentation; strong software engineering in Python and deep learning (PyTorch).
Python, PyTorch, Spark, Ray, BigQuery, Flink, Claude Code, GitHub Copilot, Cursor
1mo
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Machine Learning Engineer - Simulation Framework
Foster City or Seattle
$151k-$257k/yr HybridFull Time
Zoox
ZooxNASDAQ: AMZN: Developing autonomous robotaxis for urban ride-hailing services.
Master's or PhD in CS/robotics/ML, deep reinforcement learning experience, strong C++ and Python skills, hands-on with JAX or PyTorch, experience bridging sim-to-real fidelity gaps and working with GPU/CUDA environments.
JAX, PyTorch, C++, Python, CUDA
4mo
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Machine Learning Engineer, E-commerce Recommendation Foundation - USDS
Seattle, Washington, United States
$130k-$246k/yr OnsiteFull Time
TikTok USDS Joint Venture
TikTok USDS Joint Venture: Operates and secures TikTok services for U.S. users.
Strong ML/deep learning foundation, proficiency in Python and PyTorch, experience with recommendation systems or large-model training, research mindset and interest in LLMs/multimodal/reinforcement learning.
Python, PyTorch
2w
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ML Agent Engineer
Seattle, Washington, United States
OnsiteFull Time
Apple
AppleNASDAQ: AAPL: Designs and sells consumer electronics, software, and online services.
Experience building systems for AI agents, reinforcement learning, and simulation environments; strong software engineering and research collaboration skills.
1mo
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Senior PMT ES - Reinforcement Learning, SageMaker AI
Bellevue or Santa Clara
$152k-$237k/yr OnsiteFull Time
Amazon
AmazonNASDAQ: AMZN: Global online retail and cloud computing technology provider.
5+ YOEBachelor's in CS/engineering/math/finance/econ, 5+ years technical product management with internet business experience, experience taking products from conception to market, working with customers and technical teams; RL and large-scale SaaS/PaaS experience preferred.
Amazon SageMaker AI
1mo
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Staff Software Engineer, AI/ML
Seattle, Washington, United States
$217k-$271k/yr HybridFull Time
DigitalOcean
DigitalOceanNew York Stock Exchange: DOCN: Simplifies cloud infrastructure for developers, startups, and SMBs.
8+ YOE8+ years building production AI/ML systems; experience with reinforcement learning, reward modeling, fine-tuning, human feedback; strong software engineering in Python and another production language; experience shipping learning systems and running large-scale experiments.
Python
1mo
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Senior AI Compiler Engineer - Applied Research
Santa Clara or Austin or Redmond or California or Texas or Washington
$152k-$242k/yr HybridFull Time
NVIDIA
NVIDIANASDAQ: NVDA: Designs GPU-accelerated computing and artificial intelligence hardware.
5+ YOEM.S./PhD or equivalent experience in CS/CE, 5+ years building AI/ML systems, strong Python and C++ skills, experience fine‑tuning large models and distributed training, reinforcement learning and prompt engineering, GPU/compilation knowledge.
Python, C++, Transformers, PEFT, LoRA, NVIDIA NeMo, CUDA