PromotedHiringCafe
Founding Machine Learning / AI Search Engineer
Cupertino, CA, US
$160k-$310k/yr On-SiteFull Time
Build the ML and AI search behind HiringCafe — ranking, recommenders, retrieval, and LLM agents that surface jobs people would never find on their own.
Python, PyTorch, Elasticsearch, LLMs
2mo
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(Senior) Machine Learning Engineer - Reinforcement Learning
Fremont, California, United States
$150k-$250k/yr OnsiteFull Time
3+ YOEM.S./Ph.D. or equivalent experience; 3+ years building production ML with strong RL experience; depth in deep learning and generative models; distributed training and large-scale data processing; strong communication.
Python, PyTorch, LLM, VLM, dLLM, VLA
3mo
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Staff Reinforcement Learning Engineer – Whole Body Control
San Jose, California, United States
$150k-$250k/yr OnsiteFull Time
Strong dynamics/control background for legged robots; RL for robotics (PPO, SAC); tune hyperparameters; apply domain randomization and curriculum learning; lead projects and mentor.
Python, PyTorch, ROS
3w
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Lead AI Infrastructure Engineer, Reinforcement Learning
Santa Clara, California, United States
$179k-$306k/yr HybridFull Time
Design and operate distributed RL training infrastructure at scale; strong systems experience in ML platforms; proficiency with PyTorch/JAX, NCCL/MPI-style distributed training, C++/Python performance tuning; Bachelor's degree required.
PyTorch, JAX, NCCL, MPI, C++, Python
2w
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Research Engineer – Reinforcement Learning (RL) Systems & Infrastructure (Seed Infra)
San Jose, California, United States
OnsiteFull Time
Design and build scalable RL systems and infrastructure for large-scale model training; expertise in distributed systems, GPU optimization, Python/C++, and RL workflows.
Python, C++, PyTorch
2mo
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Developer Advocate – Reinforcement Learning
Santa Clara or United States
$152k-$288k/yr HybridFull Time
5+ YOEBachelor's in CS (or equivalent), 5+ years relevant experience (including 3 years engineering), strong communication/presentation skills, RL and LLM pipeline experience, and proficiency with PyTorch, JAX, and NeMo-RL.
PyTorch, JAX, NeMo-RL, Unsloth, TRL, OpenRLHF
2mo
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Developer Advocate – Reinforcement Learning
Santa Clara or United States
$152k-$242k/yr HybridFull Time
5+ YOEBachelor's in CS or related field; 5+ years exp including 3+ in engineering; strong communication; experience presenting to technical audiences; RL pipelines; PyTorch/JAX/NeMo-RL; able to work on training pipelines and demos.
PyTorch, JAX, NeMo-RL, Unsloth, TRL, OpenRLHF
3mo
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Machine Learning Engineer, E-commerce Recommendation Foundation - USDS
San Jose, California, United States
$137k-$360k/yr OnsiteFull Time
Strong ML and deep learning foundation, proficiency in Python and PyTorch, experience with large-scale recommendation or model training, research mindset for LLMs/multimodal/reinforcement learning.
Python, PyTorch
2d
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Machine Learning Software Developer
Livermore, California, United States
$122k-$186k/yr OnsiteFull Time
Ability to develop ML and LLM-centric software for HPC and multi-modal sensor data; Python/C++/Java proficiency; familiarity with reinforcement learning, agentic AI, GNNs, MCP; ability to obtain DOE Q clearance; BS required, MS preferred.
Python, C++, JAVA, Flux, SLURM, Large Language Model (LLM), Model-Context-Protocol (MCP)
2mo
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Staff Robotics Engineer / Tech Lead – Whole-Body Control & Robot Learning
Santa Clara or Mountain View
$215k-$364k/yr OnsiteFull Time
5+ YOEPhD or Master's in robotics/engineering; 5+ years in reinforcement learning, robotics, or related areas; strong control, learning, and imitation learning skills; cross-disciplinary communication and leadership experience favored.
Reinforcement Learning, Robot Learning, Motion Planning, Simulation, Imitation Learning, PPO, SAC, Diffusion Policies, Robot Dynamics
1mo
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Motion Planning Engineer
San Jose, California, United States
OnsiteFull Time
3+ YOEM.Sc. (or equivalent) in a quantitative field, 3+ years algorithm engineering experience, expertise in motion planning/decision making/optimization/Reinforcement Learning or LLM fine-tuning, and proficiency in Python and C++.
Python, C++
3w
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Senior Engineer, Agentic AI
Bengaluru or Santa Clara or Noida
HybridFull Time
2+ YOEExperience in machine learning, LLMs, agentic AI, reinforcement learning; proficiency with Python, TensorFlow/PyTorch, AWS, Docker, Kubernetes; 2+ years relevant ML experience; strong coding, algorithms, and communication skills.
Python, TensorFlow, PyTorch, AWS, Docker, Kubernetes, LLMs, Copilot
1mo
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Senior PMT ES - Reinforcement Learning, SageMaker AI
Bellevue or Santa Clara
$152k-$237k/yr OnsiteFull Time
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
1w
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Applied Researcher I (AI Foundations, Recommendation Systems, Personalization, Reinforcement Learning)
Cambridge or McLean or San Jose or New York
$219k-$272k/yr OnsiteFull Time
2+ YOEPhD or MS+2 years in CS/EE/AI/math; experience building large deep learning models and LLMs, publications, training/deploying models, strong ML foundation and software engineering skills.
PyTorch, AWS Ultraclusters, Huggingface, Lightning, VectorDBs
2w
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HPE Labs – AI/ML Research Scientist III
Milpitas, California, United States
$137k-$277k/yr OnsiteFull Time
PhD in CS/EE or related, extensive research in LLMs and reinforcement learning, strong Python and PyTorch skills, experience with GPU acceleration and ML model optimization, publication and prototyping track record.
PyTorch, Python, GPU
2w
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HPE Labs – AI/ML Research Scientist III
Milpitas, California, United States
$137k-$277k/yr OnsiteFull Time
PhD in CS/EE or related with strong ML research background, expertise in LLMs and reinforcement learning, proficiency in PyTorch and Python, GPU/system optimization experience, strong publication record and mentoring ability.
PyTorch, Python
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