• Lead engineer for navigation system

• Key roles in developing Tesla's native routing and guidance software, navigation map builds, localizer, traffic service

• Key roles in processing map data for FSD navigation, lane guidance, right of way

• Built big data platform by using hive, defined ETL process for log data, extracted key information from raw data and construct user profile, to be used in personalized routing systems.

• Improved cloud routing performance from end to end by reducing payload.

• Designed and implemented cloud routing/map service architecture and make sure it support global market.

• Designed and implemented ECO routing, including user story, validation, testability, implementation, engaged PM(product manager) and QA in the whole process.

• Designed and led a team to build a comprehensive routing/guidance automatic test system.

• Designed and developed turn-by-turn guidance, lane guidance and natural guidance.

• Designed and developed personalized routing, which enabled the navigation system to constantly learn from user's driving behavior.

• Unified cloud and embedded routing/guidance API and related code, reducing the maintenance cost and making user experience consistent, whether it is connected or not.

• Built cost model, which improved route quality and "Estimated Time of Arrival" service greatly.

• Built road intersection model, which simplified road network in reality.

• Developed map data format and compression algorithm, built data pipeline.

• Led map team in both automobile and mobile projects, provided routing and guidance services.