Principal Engineer, Mapping and Localization at plus-2

plus-2

Santa Clara, CA·2d ago

LeadFull-timeC++AI

Salary Range

$200,000 - $240,000 /year

About the Role

PlusAI is a Physical AI company pioneering AI-based virtual driver software for factory-built autonomous trucks. We are seeking a Principal Engineer to join our Mapping and Localization team, where you will design and implement high-fidelity fusion algorithms to achieve centimeter-level accuracy.

Key Responsibilities

→Lead the design and evolution of our localization architecture, making critical build-vs-buy decisions and defining long-term technical roadmaps.
→Design and implement robust, real-time algorithms for sensor fusion, visual/LiDAR odometry, and global localization using techniques like Factor Graphs, EKF/UKF, and particle filters.
→Develop pipelines to generate, maintain, and query High-Definition (HD) maps.
→Work on "priors-based" localization and semantic map matching.
→Solve the "stale map" problem by designing systems for change detection and updating maps in near real-time.
→Optimize code for embedded compute constraints without sacrificing safety or accuracy.
→Provide self-diagnosis capability for localization
→Act as a technical mentor to senior and junior engineers.

Requirements

✓M.S. or Ph.D. in Robotics, Computer Science, Electrical Engineering, or a related field.
✓7+ years of industry experience in robotics, with at least 4 years dedicated to production-level localization or mapping systems.
✓Expert-level Modern C++ (14/17/20) skills, with a deep understanding of memory management, multi-threading, and real-time systems.
✓Strong theoretical foundation in probabilistic robotics, including Kalman Filtering (EKF, UKF), nonlinear optimization (Ceres, g2o, GTSAM), and SLAM.
✓Deep understanding of 3D geometry, linear algebra, and coordinate transformations (quaternions, SE(3)).
✓Familiarity with Eigen, Ceres, PCL, OpenCV, GTSAM