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
1d
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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
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
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
4w
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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
2w
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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
2d
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Member of Technical Staff – Senior Engineer, Reinforcement Learning – Policy Post-Training
Cambridge or San Francisco
$255k-$340k/yr OnsiteFull Time
Hands-on RL experience for manipulation, sim-to-real transfer, reward and curriculum design, strong software engineering, and ability to run large-scale training and experiments.
Isaac, MuJoCo
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
1w
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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
3d
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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
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
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
3mo
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Senior Machine Learning Engineer - Learned Planning/Reinforcement Learning
Ann Arbor or United States or Blacksburg
$226k-$272k/yr HybridFull Time
6+ YOE6+ yrs experience or MSc 3+ yrs or PhD 1+ yrs; RL/IM/sequence modeling for robotics; Python + PyTorch; large-scale data and autonomy systems knowledge.
Python, PyTorch, Reinforcement Learning, Machine Learning
6d
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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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Machine Learning Engineer, Depot Automation
Mountain View, California, United States
$175k-$215k/yr HybridFull Time
3+ YOE3+ years of experience training/evaluating large ML models; 3+ years robotics; expertise in reinforcement learning.
Python, TensorFlow, PyTorch, Reinforcement Learning, Robotics
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
1mo
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Principle Engineer -In Bayesian, Large Foundational Systems, and Distributional Reinforcement Learning
United States
$296k-$370k/yr RemoteFull Time
15+ YOE15+ years in Applied ML; strong Python/Scala/Java/C++; Bayesian learning; reinforcement learning; distributed systems; Spark and Kafka experience.
Python, Scala, Java, C++, TensorFlow, PyTorch, Spark, Kafka
1mo
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Machine Learning Engineer
Ann Arbor or San Francisco or Houston
$120k-$160k/yr OnsiteFull Time
0+ YOE0–4 years ML or scientific computing experience; strong ML fundamentals and deep learning exposure; reinforcement learning a plus; proficiency in Python; ability to debug codebases and collaborate with process/chemistry experts.
Python
1w
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Senior Machine Learning Engineer, Bidding Science
Mountain View or Washington
$160k-$239k/yr HybridFull Time
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
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