Navigation Systems Engineer — Head-Worn & Field

Rivet Industries; Bellevue (WA); On-site; USD 225,000 - 275,000; Full time

Benefits offered by this job

Equity

Unlimited PTO

Competitive benefits

Job summary

Rivet is seeking an experienced engineer to own the navigation and positioning stack for head-worn and body-worn systems. You will transform inertial and GNSS data into robust, continuous estimates of position and orientation across challenging environments, including calibration and validation.

Responsibilities include sensor fusion, calibration, field testing, and collaboration with hardware, firmware, and perception teams to ensure seamless transitions and reliable downstream integration.

Qualifications

• BS + 8 years, MS + 5 years, or PhD + 3 years of experience in navigation, aerospace/GNC, robotics, geomatics, or a closely related field.
• Demonstrated experience owning and shipping a production navigation solution that provides position and attitude estimates.
• Strong hands-on experience with inertial sensing, magnetometer calibration, heading estimation, GNSS, and sensor fusion.
• Deep understanding of strapdown inertial navigation, error-state estimation, Kalman filtering and/or factor-graph methods, observability, and uncertainty modeling.
• Proficiency in C++ and Python, with experience developing production software for embedded or resource-constrained systems.
• Strong understanding of coordinate frames and attitude representations, including ECEF, ENU/NED, body and sensor frames, quaternions, and alignment concepts.
• Experience integrating sensors at the hardware and system level, including sensor selection, placement, calibration, timing/synchronization, and embedded interfaces.

Responsibilities

• Own the end-to-end 9-axis inertial sensing system, including accelerometer, gyroscope, and magnetometer calibration, synchronization, coordinate frames, and attitude estimation.
• Develop robust heading and inertial navigation solutions that account for sensor errors, environmental disturbances, temperature variation, and platform effects.
• Own GNSS integration and performance, including receiver configuration, raw measurement analysis, signal quality characterization, and resilience to degraded or unreliable positioning environments.
• Design and maintain the navigation fusion estimator, combining inertial, GNSS, and other available measurements into a continuous position, velocity, and attitude solution with well-characterized uncertainty.
• Develop calibration and characterization methods for production and field use, including sensor characterization, per-unit calibration, and automated validation.
• Partner with hardware, firmware, mechanical, and manufacturing teams on sensor selection, placement, mechanical integration, power and thermal constraints, and production test requirements.
• Define interfaces between the navigation and perception systems, including transitions between absolute navigation and relative visual tracking.
• Build the testing and validation infrastructure needed to measure navigation performance, replay real-world data, diagnose failures, and prevent regressions across releases.

Skills

C++

Python

Embedded software

Education

BS

MS

PhD

Tools

Kalman filtering

Factor-graph methods

Job description

Rivet is seeking an experienced engineer to own the navigation and positioning stack for head-worn and body-worn systems. You will transform inertial and GNSS data into robust, continuous estimates of position and orientation across challenging environments, including calibration and validation.

Responsibilities include sensor fusion, calibration, field testing, and collaboration with hardware, firmware, and perception teams to ensure seamless transitions and reliable downstream integration.