Lead, Mapping & Localization — HD Maps & Sensor Fusion

PlusAI, Inc.; Santa Clara (CA); Hybrid; USD 190,000 - 235,000; Full time

Benefits offered by this job

Catered free lunch

Unlimited snacks and beverages

401(k) plan

Job summary

PlusAI, Inc. is seeking a Principal Engineer for Mapping and Localization to lead high‑fidelity sensor fusion and HD map pipelines for autonomous trucks.

You will shape the localization architecture, tackle GPS-denied scenarios, and drive real‑time performance on embedded compute while ensuring safety and precision. Join a fast‑growing team backed by industry partnerships and a strong focus on edge-case robustness, continuous improvement, and technical mentorship across senior and junior

Qualifications

• MS or PhD in Robotics, CS, EE or a related field.
• 7+ years in robotics with at least 4 years in production-level localization or mapping.
• Expert-level Modern C++ (14/17/20) with memory management, multi-threading, and real-time systems.
• Strong foundation in probabilistic robotics, Kalman Filtering, nonlinear optimization, and SLAM.

Responsibilities

• Lead the design and evolution of localization architecture and define long-term technical roadmaps.
• Design and implement robust, real-time algorithms for sensor fusion, visual/LiDAR odometry, and global localization.
• Develop pipelines to generate, maintain, and query High‑Definition maps.
• Work on priors-based localization and semantic map matching.
• Solve the stale map problem by designing systems for change detection using fleet data.
• Optimize code for embedded compute constraints while preserving safety and accuracy.
• Provide self-diagnosis capability for localization.
• Mentor senior and junior engineers through code reviews and engineering excellence.

Skills

C++ Expert

Real-time Systems

Probabilistic Robotics

SLAM / Localization

Education

MS/PhD in Robotics

Tools

Eigen

Ceres

PCL

OpenCV

GTSAM

Job description

PlusAI, Inc. is seeking a Principal Engineer for Mapping and Localization to lead high‑fidelity sensor fusion and HD map pipelines for autonomous trucks.

You will shape the localization architecture, tackle GPS-denied scenarios, and drive real‑time performance on embedded compute while ensuring safety and precision. Join a fast‑growing team backed by industry partnerships and a strong focus on edge-case robustness, continuous improvement, and technical mentorship across senior and junior