Justin Blumenthal is product manager at Coinbase where he leads &nbsp;P2P crypto payments and the Coinbase Card. During his time at Coinbase, Justin launched new features including multichain send and receive. Prior to Coinbase, Justin was Lead PM at Square, leading the development efforts for Square Reader for Contactless and Chip and the Square Reader for Magstripe.
Justin’s product stack includes:
<ol>
 <li>Problem / Proposed Solution (PPS) template</li>
 <li>RAPID (Recommend / Agree / Perform / Input / Decide) template</li>
 <li>User feedback tools including usertesting.com</li>
</ol>
If you’d like to stay up to date with Justin, you can follow him on <a href="https://twitter.com/jblumy">Twitter</a>.
 
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