Senior/Staff Machine Learning Engineer (Reinforcement Learning), Motion Planning

PlusAI
Santa Clara, CAFull-time$130,000–$220,000Posted Aug 27, 2026

About the role

PlusAI is a Physical AI company pioneering AI-based virtual driver software for factory-built autonomous trucks. Headquartered in Silicon Valley with operations in the United States and Europe, Plus was named by Fast Company as one of the World’s Most Innovative Companies. Partners including TRATON GROUP’s Scania, MAN, and International brands, Hyundai Motor Company, Iveco Group, Bosch, and DSV are working with Plus to accelerate the deployment of next-generation autonomous trucks. If you’re ready to make a huge impact and drive the future of autonomy, Plus is looking for talented individuals to join its fast-growing teams.

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Responsibilities

Design, develop, and deploy learned behavior planning models using approaches such as reinforcement learning, behavior cloning, and imitation learning

Own end-to-end Reinforcement Learning pipeline from environment construction, training, and modeling.

Contribute to Reinforcement Learning Infrastructure to facilitate large-scale distributed training

Track model training, analyze model performance, identify failure modes to improve generalization across driving scenarios

Collaborate with simulation and planning teams to deploy learned behavior planning models to driving pipelines

Required skills

MS or PhD in Computer/Software Engineering, Robotics, Machine Learning or related field.

Experience developing production code in C/C++ and Python

Experience with machine learning frameworks such as PyTorch

Experience with reinforcement learning

Strong oral and written communication skills.

Preferred skills

Experience with high-throughput batched driving simulators such as GPUDrive and PufferDrive

Experience with self-play reinforcement learning

Experience with sim-to-real in the context of robotics / autonomous driving

Prior experience in learned behavior planning / prediction for autonomous vehicles

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$130,000 - $220,000 a year

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Your opportunities joining PlusAI

Work, learn and grow in a highly future-oriented, innovative and dynamic field.

Wide range of opportunities for personal and professional development.

Catered free lunch, unlimited snacks and beverages.

Highly competitive salary and benefits package, including 401(k) plan.

Responsibilities

  • Design, develop, and deploy learned behavior planning models using approaches such as reinforcement learning, behavior cloning, and imitation learning
  • Own end-to-end Reinforcement Learning pipeline from environment construction, training, and modeling
  • Contribute to Reinforcement Learning Infrastructure to facilitate large-scale distributed training
  • Track model training, analyze model performance, identify failure modes to improve generalization across driving scenarios
  • Collaborate with simulation and planning teams to deploy learned behavior planning models to driving pipelines

Qualifications

  • MS or PhD in Computer/Software Engineering, Robotics, Machine Learning or related field
  • Experience developing production code in C/C++ and Python
  • Experience with machine learning frameworks such as PyTorch
  • Experience with reinforcement learning
  • Strong oral and written communication skills

Benefits

  • Work, learn and grow in a highly future-oriented, innovative and dynamic field
  • Wide range of opportunities for personal and professional development
  • Catered free lunch, unlimited snacks and beverages
  • Highly competitive salary and benefits package, including 401(k) plan

Skills mentioned

C++PythonMachine LearningReinforcement LearningPyTorchDeep LearningDistributed SystemsModel EvaluationModel DeploymentPerformance Optimization

About PlusAI

PlusAI is an artificial intelligence company pioneering AI-based virtual driver software for factory-built autonomous trucks. Headquartered in Silicon Valley with operations in the United States and Europe, PlusAI was named by Fast Company as one of the World’s Most Innovative Companies. Partners including TRATON GROUP’s Scania, MAN, and International brands, Hyundai Motor Company, Iveco Group, Bosch, and DSV are working with PlusAI to accelerate the deployment of next-generation autonomous trucks. PlusAI announced in June 2025 that it plans to go public via a merger with Churchill Capital Corp IX (NASDAQ: CCIX).

Software Development201-500 employeesSanta Clara, California