Sensor Calibration, Mapping & Localization Engineer

42dot; Sunnyvale (CA); On-site; USD 150,000 - 205,000; Full time

Job summary

42dot, a mobility AI company in Sunnyvale, CA, seeks an engineer to own the calibration, mapping, and localization stack across a multi-vehicle-class fleet including passenger vehicles, robotaxis, buses and trucks.

You will design sensor calibration systems for factory and on-field use, and develop mapping and localization pipelines with drift detection and validation tooling to support production perception and planning models.

Qualifications

• Ability to work through difficult technical problems methodically and independently.
• Bachelor's or Master's degree in Computer Science, Robotics, EE, Mathematics, or related field.
• 2–4 years of experience in sensor calibration, SLAM, mapping, localization, or multi-sensor fusion.
• Strong software engineering skills in C++ and/or Python, with production-grade robotics experience.

Responsibilities

• Design and implement sensor calibration systems (camera, LiDAR, radar, IMU) for factory and in-field use.
• Build and maintain mapping pipelines with map creation, versioning, and drift detection.
• Develop and improve localization algorithms, including sensor fusion, odometry, and SLAM.
• Define accuracy, latency, and reliability requirements for outputs used by downstream teams.
• Build tooling to validate calibration and localization quality at fleet scale.
• Diagnose and resolve calibration and localization failures from on-road and simulation testing.

Skills

Sensor calibration

SLAM

Localization

Kalman filters

C++

Python

Education

Bachelor's or Master's in CS/Robotics/EE/Math

Job description

42dot, a mobility AI company in Sunnyvale, CA, seeks an engineer to own the calibration, mapping, and localization stack across a multi-vehicle-class fleet including passenger vehicles, robotaxis, buses and trucks.

You will design sensor calibration systems for factory and on-field use, and develop mapping and localization pipelines with drift detection and validation tooling to support production perception and planning models.