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Motional Logo

Principal Software Engineer Trajectory Generation- Evergreen

Motional

$212,000 - $283,975
Aug 29, 2025
Boston, MA, US
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Motional is seeking a technical expert for its Planning team to define motion planning and control systems for secure, effective, and comfortable fleet operation in complex environments.

Requirements

  • 10+ years of research experience in robotics / motion planning, with a proven track record of contributing to state-of-the-art solutions and leading significant projects.
  • 5+ years of C++ software development, with an emphasis on developing high-performance and reliable systems.
  • Past experience owning and leading technical development on complex features from problem formulation through research, implementation, and deployment in a production environment, demonstrating significant impact.
  • Experience with probabilistic models, including but not limited to Gaussian mixture models, Hidden Markov Models, and Particle Filters.
  • Experience with machine learning techniques (such as Bayesian modeling and inference techniques) for decision making under uncertainty.
  • Experience with the Bazel build framework

Responsibilities

  • Lead the research and development of novel algorithms and sub-systems for motion planning in autonomous driving, thereby expanding the Operational Design Domain. This includes, but is not limited to, advanced search-based and sophisticated geometry-based methods, as well as decision-making under uncertainty with a strong emphasis on probabilistic approaches
  • Monitor overall system performance to identify areas for improvement and develop technical strategies to address deficiencies
  • Architect and integrate complex combinations of motion planning and prediction algorithms, driving their evaluation and refinement for real-world deployment.
  • Design and build a robust, scalable, and high-performance codebase that facilitates rapid exploration, prototyping, and rigorous evaluation of innovative motion planning approaches and algorithms.
  • Drive technical collaboration and interface seamlessly with perception and prediction components upstream and trajectory optimization, tracking and control components downstream, ensuring end-to-end system performance.
  • Leverage your deep software development and research expertise to teach others better software practices and principles, fostering a culture of technical excellence.
  • Guide and mentor junior and senior team members, cultivating a culture of product-focused engineering, rigorous research, and advanced development.

Other

  • PhD preferred in Robotics, Computer Science, Computer Engineering, Mechanical Engineering, or a related field; or a Master's degree with 7+ years of experience in the robotics (preferably AV industry).
  • Thirst for knowledge, continuous innovation, and a drive to push the boundaries of autonomous driving technology, acting as a technical thought leader.
  • We celebrate diversity and are committed to creating an inclusive environment for all employees.
  • To comply with Federal Law, we participate in E-Verify.
  • All newly-hired employees are queried through this electronic system established by the DHS and the SSA to verify their identity and employment eligibility.