Autonomy Software Engineer, Differential GNSS

ZipLine • South San Francisco, CA

61d • $200,000 - $265,000

About The Position

If you enjoy dissecting the raw measurements from your GNSS receiver, fusing them with IMU, camera, and ground-station data, and feeding everything into a highly robust state estimator, this role would be a perfect opportunity for you to experiment and show your talent. Our vehicles operate all around the globe, and must be able to complete their missions reliably in the face of all weather conditions, and even in the event of sensor failures. We need to build a system that handles a wide variety of geographic environments and operates without high-definition maps. We strive to continuously improve our systems so that we never encounter the same problem twice. You will be expected to stretch your skills and to experiment with new approaches to filtering and measurement. You will design systems to gather data from every mission, so that you can confirm things are working as expected-or so that we can reproduce and fix the problem if not.

Requirements

• A degree in physics or an engineering discipline.
• Experience with state estimation, probabilistic filtering, GNSS RTK and raw measurements, IMU data, sensor modeling and simulation.
• Understanding of calculus, linear algebra, non-linear optimization, and computational numerical methods.
• Experience in building high performance software systems using compiled languages (C/C++/Rust/Ada/etc.).
• The capability to solve complex problems with little supervision as part of an integrated team.
• Excellent communication skills, both written and verbal.

Responsibilities

• Extract the maximum value from the observations of our GNSS hardware: integrating all the data available from our ground station network when available, but also building robust systems which handle extended communications outages without a large amount of drift.
• Design systems which deal with intermittent GNSS availability, ensuring our vehicle can make use of both GNSS and vision data, while handling failures in either one at any time.
• Perform trade studies to understand the value of new sensors or processing approaches to vehicle performance and reliability.
• Analyze the performance of systems both in simulation and using data from vehicles operating in the field to find under-performing facets of the system, and devise solutions which bring them up to speed.
• Participate in code review with a strong and capable team of engineers building highly reliable software in the Rust programming language.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Industry: Professional, Scientific, and Technical Services
• Number of Employees: 1,001-5,000 employees