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Senior Software Engineer - Cards

Mercury

Locations
San Francisco, CA, New York, NY, Portland, OR · Remote within Canada · United States
Department
Engineering
Posted
21 days ago (Oct 23, 2026)

As the story goes, in 1949 Frank McNamara finished dinner at a New York restaurant and found he'd left his wallet in another suit. His fix was a card that let members eat now and pay later. That card became Diners Club, widely credited as the first multipurpose charge card. It was a piece of cardboard and a promise: the restaurant trusted the card, the card trusted the member, and someone had to…

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