Senior Machine Learning Engineer I // II

Signifyd provides an end‑to‑end Commerce Protection Platform that leverages its Commerce Network to maximize conversion, automate customer experience and eliminate fraud and customer abuse for retailers. Signifyd uses big data and machine learning to provide a 100% financial guarantee against fraud and chargebacks on approved orders. This effectively shifts the liability for fraud away from ecommerce merchants, allowing them to increase sales and open new markets while reducing risk.

Signifyd counts among its customers a number of companies on the Fortune 1000 and Internet Retailer Top 500 lists. Signifyd is headquartered in San Jose, CA, with locations in Denver, New York, Mexico City, Belfast and London.

Thousands of online stores protected. 100+ countries served.

For the first time, online retailers can receive a decision backed by a 100% financial guarantee against fraud and consumer abuse. We focus on making commerce safer for online retailers, so that they can focus on what they do best: growing their business without the fear of online retail fraud.

The history of Signifyd

Our story begins in a two‑desk coworking space in Palo Alto with co‑founders Mike and Raj, who left their jobs at PayPal with an idea about tracking fraudsters on social media. At first a scoring solution, guaranteed protection from fraud soon emerged as an excellent product‑market fit, and our growth spurt began. Our product stack grew too, adding products and features that protect retailers from all forms of chargebacks, including consumer abuse and payments optimization under SCA. Signifyd is currently backed by Premji Invest, Bain Capital Ventures, Menlo Ventures, American Express Ventures, IA Ventures, Allegis Cyber and Resolute Ventures.

Our platform

Signifyd’s Commerce Protection Platform automates online order flows, instantaneously sorts fraudulent orders from legitimate ones, triages abuse chargebacks stemming from customer disputes and future‑proofs the enterprise against rapidly evolving payments optimization issues. And in keeping with Signifyd’s roots, it includes a financial guarantee backing the platform’s decisions.