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
1w
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Reinforcement Learning Engineer (Cybersecurity)
United States or San Francisco or New Hampshire
$176k-$243k/yr RemoteFull Time
Experience with reinforcement learning workflows, Linux ML environments, vulnerability research/binary exploitation, proficiency in Python and C, DevOps pipelines and reproducible builds, and low-level debugging.
Mayhem, GitHub Actions, docker, buildkit, nix, Python, C, Rust, Linux
1mo
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Reinforcement Learning Engineer, Grasping
Houston, Texas, United States
OnsiteFull Time
2+ YOEBS/MS/PhD in Robotics/CS/ML; 2+ years RL experience for robotic manipulation (or exceptional recent grads); proficiency in Python, PyTorch, JAX; experience with MuJoCo/Isaac Sim, sim-to-real, reward shaping, and RL libraries (rsl_rl, skrl).
Python, PyTorch, JAX, rsl_rl, skrl, MuJoCo, Isaac Lab, Isaac Sim
3mo
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Reinforcement Learning Engineer - Locomanipulation
Cambridge or Boston
$200k-$350k/yr OnsiteFull Time
MS or PhD in Robotics, ML, CS or related field; strong RL experience; robotics experience; Python/C++ skills; deploy RL on real robots.
Python, C++, MuJoCo, Isaac Lab, ROS
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
2mo
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Reinforcement Learning Engineer ($400k - $800k salary)
New York or London
$400k-$800k/yr OnsiteFull Time
Experience deploying autonomous learning systems with real capital; design risk limits; build evaluation loops; lead ML system end-to-end.
Python, ML frameworks, Simulation tools
3w
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Research Scientist, Reinforcement Learning (LLM) and Post-training
Santa Clara, California, United States
$179k-$306k/yr HybridFull Time
Expertise in reinforcement learning theory and practice for post-training LLMs; strong publication record; hands-on experience training RL/preference-optimized models at scale; PhD strongly preferred.
3mo
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Anthropic Fellows Program — Reinforcement Learning
London or Berkeley or San Francisco or London or Ontario or British Columbia or Remote-Friendly US (Travel Required)
$4k/wk HybridFull Time
Fluent in Python; available to work full-time; strong software engineering; interest in empirical AI research.
Python, Distributed Systems, Machine Learning, Research Tools
2d
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Reinforcement Learning Infrastructure Engineer
Palo Alto, California, United States
$275k-$475k/yr OnsiteFull Time
3+ YOE3+ years distributed systems experience, strong Python and PyTorch or JAX, multi-node GPU orchestration (Ray, SLURM, Kubernetes), experience with actor-learner architectures and RL training pipelines.
Python, PyTorch, JAX, Ray, SLURM, Kubernetes
3d
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Reinforcement Learning AI Engineer
Huntsville, Alabama, United States
$99k-$225k/yr HybridFull Time
3+ YOE3+ years developing and training RL agents, experience with Gym/PettingZoo, PyTorch/TensorFlow/JAX, Python/Rust/C++, secret clearance eligibility, bachelor's in CS/AI/Engineering, up to 25% travel.
Python, Gym, PettingZoo, PyTorch, TensorFlow, JAX, Rust, C++, C, AFSIM, CUDA, RAPID, Kubernetes
3d
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Reinforcement Learning AI Engineer
Huntsville or McLean or El Segundo or Colorado Springs
$99k-$225k/yr OnsiteFull Time
3+ YOE3+ years developing and training RL agents; experience with Gym/PettingZoo, PyTorch/TensorFlow/JAX, Python and optionally C++/Rust; ability to obtain/hold Secret clearance and travel up to 25%.
Python, Gym, PettingZoo, PyTorch, TensorFlow, JAX, Rust, C++, C, CUDA, RAPID, Kubernetes, AFSIM
1mo
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Research Scientist, Reinforcement Learning
Fremont, California, United States
OnsiteFull Time
Proficiency in modern RL and RLHF algorithms, experience with reward model training and LLM/VLM fine-tuning, distributed RL training and massively parallel simulation, sim-to-real transfer, Python and C++, PyTorch, and distributed training frameworks.
DQN, PPO, SAC, TD3, DPO, GRPO, LLM, VLM, VLA, Python, C++, PyTorch, Ray, Horovod, CUDA
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
2mo
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Staff Reinforcement Learning Research Engineer
Waltham, Massachusetts, United States
$155k-$200k/yr OnsiteFull Time
3+ YOEMS with 3+ years or PhD in ML, Robotics; deployed policies on physical robots; RL toolbox and simulation expertise; PyTorch/JAX; software fundamentals
Reinforcement Learning Toolboxes (RSL-RL, CleanRL, RLlib, Stable Baselines), Simulation and Rendering Tools (Isaac Lab, MuJoCo, MjWarp, MjLab), PyTorch, JAX, ONNX, Triton, TensorRT, Bazel, Docker, CI/CD
2w
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Reinforcement Learning Engineer - Ingénieur(e) en apprentissage par renforcement
Montréal or New York
HybridFull Time
Graduate degree in robotics/CS/AI, proven RL engineering experience, strong math, fluency in Python/Git/Unix, experience with RL frameworks and simulators, and sim-to-real expertise.
Python, Git, Unix shell, Ray RLlib, Stable Baselines3, CleanRL, MuJoCo, Bullet, Unity, Unreal, Isaac Sim, Jira, Confluence, Slack
1mo
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Machine Learning Engineer - Reinforcement Learning
Fremont, California, United States
$150k-$250k/yr OnsiteFull Time
MS/PhD in CS/ML/AI or related field, or equivalent experience; RL/production ML experience; deep learning, sequence modeling, generative models; publish or ship impactful ML systems; large-scale training and data processing; lead ambiguous work.
Python, PyTorch, Reinforcement Learning
1w
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Member of Technical Staff – Senior Engineer, Reinforcement Learning for Wholebody Control
Cambridge, Massachusetts, United States
$180k-$240k/yr OnsiteFull Time
Proven RL experience for continuous control, sim-to-real transfer on real robots, control theory knowledge, large-scale GPU simulation, strong Python and C++ skills, and software engineering for training/deployment pipelines.
Python, C++
1mo
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Machine Learning Scientist, Reinforcement Learning
Emeryville or Hybrid (2-3 days on-site)
$200k-$330k/yr HybridFull Time
PhD or equivalent in CS/ML/NLP/Applied Math/Computational Biology/Statistics; experience with ML/RL; publications; PyTorch or Jax experience.
PyTorch, Jax
3mo
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Applied Scientist II, Reinforcement Learning
North Reading, Massachusetts, United States
$143k-$193k/yr OnsiteFull Time
2+ YOEPhD or Masters with 2+ years of applied robotics research; expertise in reinforcement learning, imitation learning, whole-body control, and model-based control.
Python, C++, Java, Matlab, ROS, Mujoco, Drake, IsaacLab, Deep Learning
1w
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Senior Machine Learning Engineer - Reinforcement Learning
Columbus, Ohio, United States
HybridFull Time
Master’s/PhD or equivalent experience in CS/Robotics/ML, strong RL experience for real-world systems, proficiency in Python and PyTorch/TensorFlow, simulation and sim-to-real experience, production ML deployment skills.
Python, PyTorch, TensorFlow, Isaac Gym, Gazebo, MuJoCo, PyBullet
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
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