Senior/Staff Software Engineer, Motion Planning

Senior Software EngineerPlusAI is a Physical AI company pioneering AI-based virtual driver software for factory-built autonomous trucks. 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.About the RoleAs a Senior Software Engineer on the Motion Planning team, you'll research, develop, and implement planning technologies that let PlusAI's trucks handle complex, real-world driving scenarios in a safe and human-like manner. You'll work across the full decision-making stack, from reasoning about what the truck should do to determining precisely how it should get there, while accounting for the many ways a scenario could unfold.ResponsibilitiesDesign and implement algorithms for decision-making and trajectory generation, ensuring safety, comfort, and reliability across a wide range of driving conditions.Bring novel robotics and machine learning techniques from research into a production-grade, safety-critical system.Reason about complex, socially-nuanced driving situations, such as negotiating merges, junctions, and interactions with other road users, under uncertainty.Utilize modern C++ numerical optimization frameworks (e.g., CasADi, Acados) and industry-standard tooling (git, ROS, etc.) to integrate new planning algorithms into the production stack.Partner closely with the ML and prediction teams to integrate, refine, and act on probabilistic and multi-future representations of how a scenario might evolve, shaping how these outputs are consumed by planning decisions.Perform system-level diagnostics and tuning using in-house and open-source visualization tools (e.g., webviz).Collaborate cross-functionally and communicate clearly, producing system designs that are reviewed and approved at a high level before implementation begins.Required skillsMS with 1-2 years of relevant experience, or PhD, in Computer Science, Robotics, or a related field.Strong production software development skills in C++; Python experience a plus.Robotics expertise in one or more of: path planning, motion planning, trajectory generation, behavior planning, optimal control.Strong math (geometry, analysis, probability) and physics (kinematics, dynamics) fundamentals.Experience designing, implementing, and refining planning algorithms on a real-world robotic or vehicle platform.Strong oral and written communication skills, with the ability to collaborate across teams and derive solutions from cross-functional inputPreferred skillsPhD + 1-2 years or MS + 3-4 years of relevant experience.Bonus: exposure to machine learning techniques such as deep learning, imitation learning, transformer-based models, or diffusion-based models, particularly as applied to decision-making or scenario generation.Familiarity with safety frameworks for autonomy (e.g., RSS, collision avoidance/MRM logic).Prior experience working on safety-critical systems.$130,000 - $220,000 a yearYour opportunities joining PlusAIWork, 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.