Senior) AI Engineer - Reinforcement Learning Manipulation, RIVR

RIVR, an Amazon company, is building Physical AI by deploying autonomous robots for real-world doorstep delivery. Operating daily in diverse urban environments, RIVR's robots continuously learn from and navigate the millions of scenarios encountered during deliveries. By owning the full stack from software to hardware, RIVR is purpose‑built for safety, reliability, and the customer from day one.

Reinforcement learning is transforming our robotic intelligence, enabling autonomous behavior without human guidance. We are seeking a Senior AI Engineer with deep expertise in reinforcement learning and deep learning, including supervised and self‑supervised learning with a focus on dexterous manipulation. Your role will involve leveraging both simulated and real‑world data to address practical challenges in dynamic grasping, contact‑rich manipulation, and object interaction.

If you are passionate about advancing AI and developing innovative solutions, join us in shaping the future of intelligent robotics.

• Develop cutting‑edge reinforcement learning algorithms to enable robust, contact‑rich dexterous manipulation, translating vision, depth, tactile, and proprioceptive sensor input into precise end‑effector and joint‑level motor commands.
• Design, test, and refine algorithms to solve complex real‑world manipulation challenges, such as handling diverse package form factors, dynamic hand‑offs, and operating door handles or latches.
• Collaborate with the foundation model team to innovate methods that leverage both simulated and real‑world data.

• Master’s degree or higher in a relevant field such as Engineering, Robotics, or Machine Learning.
• A minimum of five years of industry or research experience, with PhD experience applicable.
• Strong deep learning fundamentals, including supervised and self‑supervised learning techniques, and reinforcement learning, including Markov Decision Processes (MDPs), neural network architectures, policy optimization algorithms, model‑based vs. model‑free RL, exploration‑exploitation strategies, value function methods, transfer learning, domain adaptation, sim‑to‑real transfer, etc.
• Strong background in robotics including autonomy and/or manipulation.
• Experience with deploying artificial neural networks on hardware platforms.
• Ability to write production‑level code in modern C++.
• Ability to prototype algorithms and train deep neural networks in Python.
• Strong background in robotic manipulation, including dynamics, grasp synthesis, and trajectory optimization.

• PhD degree in Robotics, Engineering, Computer Science, Machine Learning or a similar discipline, or an equivalent amount of research experience.
• Publications at top-tier conferences (e.g., ICRA, IROS, CoRL, RSS) specifically focusing on robotic manipulation, grasping, or contact‑rich RL.
• Demonstrated experience working with tactile sensing, multi‑fingered robotic hands, or bimanual manipulation.