The Founding Engineer at Sperta

Spender Risk

• Chargeback frauds

• Chargeback representment

• Arrears

• DNS risk

Doc verification and deduplication

• Training flow to preprocess the document images.

• Process thousands of types of document images on Uber platform.

• Verify document images by comparing with the profile images.

• Dedupe document images based on different important component from document images.

In house face verification system.

• Use Computer Vision technique to identify the fake/duplicate images on accounts on Uber platform.

• Large scale similarity comparison and clustering.

• Leverage Apache Spark to make it scalable.