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
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
3mo
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Helix AI Engineer, Reinforcement Learning
San Jose, California, United States
OnsiteFull Time
Develop and apply reinforcement learning algorithms for embodied agents; strong Python and PyTorch; experience in simulation/real-world RL; scalable systems.
Python, PyTorch, Reinforcement Learning
1w
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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
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++
2d
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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
3mo
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Applied Researcher I (AI Foundations, LLM Customization, Finetuning, Reinforcement Learning)
Cambridge or McLean or New York or San Jose
$219k-$272k/yr OnsiteFull Time
PhD in Electrical/Computer Engineering, Computer Science, AI, Mathematics, or related field with start-date eligibility; or MS plus 2 years applied research experience; strong ML/NLP/AI foundation model expertise.
PyTorch, AWS, Hugging Face, Lightning, VectorDBs
3mo
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Applied Researcher I (AI Foundations, LLM Customization, Finetuning, Reinforcement Learning)
McLean or Cambridge or New York or San Jose
OnsiteFull Time
PhD in Electrical/Computer Engineering, Computer Science, AI, Mathematics, or related fields; or MS with 2+ years applied research experience; expertise in AI foundations, LLMs, finetuning, RL; strong publications and open-source contributions.
Python, PyTorch, AWS, Hugging Face, Lightning, VectorDBs