2w
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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
2w
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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++
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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Member of Technical Staff – Senior Engineer, Reinforcement Learning – Policy Post-Training
San Francisco or Cambridge
$255k-$340k/yr OnsiteFull Time
Proven RL experience on real-world or large-scale problems, manipulation and sim-to-real experience, strong software engineering and experimental ownership, ability to mentor engineers.
Isaac, MuJoCo
1mo
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Senior Machine Learning Engineer
Wellesley or New York City
$111k-$222k/yr HybridFull Time
5+ YOE5+ years building ML systems in production, 5+ years Python, familiarity with PyTorch/TensorFlow, MLOps (Kubeflow, Vertex), 2+ years SQL with Snowflake/BigQuery, 2+ years system design leadership, experience in reinforcement learning/causal inference/LLMs, mentoring experience, strong communication.
Python, PyTorch, TensorFlow, Kubeflow, Vertex, SQL, Snowflake, BigQuery, Node.js, React, Spark, Kafka, Airflow
1mo
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Software Machine Learning Engineer (North Reading, MA, US)
North Reading, Massachusetts, United States
$117k-$186k/yr OnsiteFull Time
2+ YOE2+ years ML experience, hands-on model building and deployment, experience with graph ML, reinforcement learning, interpretability (SHAP/LIME), MLOps exposure, strong collaboration and communication; MS/PhD preferred.
SHAP, LIME, LangChain, AutoGen
1mo
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Senior Software Machine Learning Engineer (Teradyne, North Reading, MA) (North Reading, MA, US)
North Reading, Massachusetts, United States
$134k-$224k/yr OnsiteFull Time
5+ YOE5+ years ML experience, LLM fine-tuning, reinforcement learning and reward-model design, production ML/MLOps, Python, distributed systems, computer vision for manufacturing, edge deployment (ONNX/quantization), strong communication.
Python, ONNX, LangChain, AutoGen, STDF, TEMS, LLM, PPO, MLOps
2w
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Member of Technical Staff – Engineer, RL and Control
Cambridge, Massachusetts, United States
$158k-$210k/yr OnsiteFull Time
Strong RL or model-based control foundations, real-robot experience, proficiency in Python and C++ (or willingness to grow), simulation and sim-to-real experience, and curiosity to iterate quickly.
Python, C++, Drake, Mujoco, PyTorch, WARP, JAX
2w
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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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Member of Technical Staff – Staff Engineer, Multimodal Post-Training
Cambridge or San Francisco
$319k-$425k/yr OnsiteFull Time
Deep hands-on post-training experience (SFT, RLHF/DPO, distillation, RL), strong reinforcement learning and multimodal LLM experience, program ownership, measurement and evaluation expertise.