14 reinforcement learning engineer jobs at 7 companies in Massachusetts
4d
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Reinforcement Learning Engineer
United States or Framingham
$100k-$150k/yr RemoteFull Time
6+ YOERequires a master's or PhD in computer science, machine learning, or related field or equivalent experience; 6+ years of RL research and engineering; Python, deep learning frameworks, RL libraries, probability, optimization, and GPU cluster experience.
Python, RLHF, DPO, GPU
3w
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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, or related field; deployed robot policies; expertise in RL, simulation, PyTorch/JAX, inference runtimes, Bazel, Docker, CI/CD, and Kubernetes.
RSL-RL, CleanRL, RLlib, Stable Baselines, Isaac Lab, MuJoCo, MjWarp, MjLab, PyTorch, JAX, ONNX, Triton, TensorRT, Bazel, Docker, Kubernetes
1mo
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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
1mo
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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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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
3w
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Applied Scientist - Reinforcement learning, OMHS SCS
Boston or North Reading
$143k-$193k/yr OnsiteFull Time
2+ YOEPhD in CS/ML/engineering,2+ years building ML models,experience applying reinforcement learning to real-world control,fluency in Python and ML frameworks,experience deploying ML to production.
Python, C++, PyTorch, TensorFlow, Ray/RLlib, Gymnasium, Stable-Baselines3, Isaac Gym/Omniverse, MuJoCo
5d
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Senior Lead AI Engineer (AI Foundations: LLM Customization, Finetuning, Reinforcement Learning)
New York City or San Francisco or San Jose or Cambridge or McLean
$230k-$286k/yr OnsiteFull Time
6+ YOEBachelor's plus 6 years or master's plus 4 years developing AI/ML technologies, and 6 years programming with Python, Go, Scala, or Java; cloud AI deployment and team leadership preferred.
AWS Ultraclusters, Hugging Face, VectorDBs, Nemo Guardrails, PyTorch, Python, Go, Scala, Java, AWS, Google Cloud, Azure, C++, C#, Golang
5d
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Senior Lead AI Engineer (AI Foundations: LLM Customization, Finetuning, Reinforcement Learning)
New York City or San Francisco or San Jose or Cambridge or McLean
$230k-$286k/yr OnsiteFull Time
6+ YOEBachelor's degree plus 6+ years or master's degree plus 4+ years developing AI/ML technologies, and 6+ years programming with Python, Go, Scala, or Java.
AWS Ultraclusters, Hugging Face, VectorDBs, NeMo Guardrails, PyTorch, Python, Go, Scala, Java, AWS, Google Cloud, Azure, C++, C#, Golang
5d
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Senior Lead AI Engineer (AI Foundations: LLM Customization, Finetuning, Reinforcement Learning)
New York City or San Francisco or McLean or Cambridge or San Jose or United States
$230k-$286k/yr OnsiteFull Time
6+ YOEBachelor's plus 6+ years or master's plus 4+ years developing AI/ML technologies, and 6+ years programming with Python, Go, Scala, or Java. Leadership and cloud AI experience preferred.
AWS Ultraclusters, Hugging Face, VectorDBs, Nemo Guardrails, PyTorch, Python, Go, Scala, Java, AWS, Google Cloud, Azure, C++, C#, Golang
2mo
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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
1mo
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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
1mo
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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
1w
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Lead Decision Intelligence Engineer - NBA
United States or Boston
$129k-$178k/yr RemoteFull Time
8+ YOEBachelor's degree, 8+ years software engineering experience, and 3+ years production reinforcement learning or deep learning experience. Requires Python, RL algorithms, Ray RLlib, Databricks, PySpark, Delta Lake, and MLflow.
PPO, A3C, DQN, Q-learning, CQL, Decision Transformer, Databricks, MLflow, Ray RLlib, PySpark, Delta Lake, Databricks Unity Catalog, PettingZoo, Drools, Redis, Kafka, Delta Live Tables, Python, PyTorch, TensorFlow, Gymnasium, OpenTelemetry, HireVue, Microsoft Workday
1mo
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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.