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Software Engineer - Mercury Command

Mercury · San Francisco, CA, New York, NY, Portland, OR, or Remote within Canada or United States · Remote

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About Mercury

Everything you do with money. All in one place. Apply in 10 minutes for business banking that transforms how you operate. Backed by Sequoia, a16z and 500 Global.

About the role

In 1965, an engineer in Scotland was given a mundane task with a tricky problem to it - banks wanted to close on Saturdays and still serve customers, but they didn’t know how to solve authentication of the right user. James Goodfellow, working at Smiths Industries, uncovered the insight that you needed something you have (a card) and something you know (a PIN). Because someone told him they could only remember 4 digits instead of his proposed 6, today over 3 million ATMs use a card+4 digit PIN over 60 years later. Found on 1752vc Careers, the job board for startup and VC roles.

What they're looking for

  • Has 1-4 years of backend or full-stack development experience, with knowledge of or excitement to learn Haskell, React, TypeScript, and Redux
  • Experience building LLM powered products
  • A builder who is passionately product-minded and has experience building and shipping new products
  • Empathizes with users and can channel their perspective to build lovable products
  • Can balance tradeoffs and find creative solutions to accomplish goals
More about this role

In 1965, an engineer in Scotland was given a mundane task with a tricky problem to it - banks wanted to close on Saturdays and still serve customers, but they didn’t know how to solve authentication of the right user. James Goodfellow, working at Smiths Industries, uncovered the insight that you needed something you have (a card) and something you know (a PIN). Because someone told him they could only remember 4 digits instead of his proposed 6, today over 3 million ATMs use a card+4 digit PIN over 60 years later.

Like the ATM, Mercury is building technology that pushes forward financial interfaces for the long term. Command is Mercury's LLM-powered financial assistant, launched to all customers in June 2026. It lets users understand their finances and take action in plain language, from asking about cash flow to sending payments, issuing cards, and managing invoices. With the product now in customers' hands, the work is to evolve it, extend its capabilities, and find new ways to leverage LLMs to give Mercury customers a more powerful banking* experience.

  • Ship new capabilities users love
  • Feel a strong sense of product ownership and actively seek responsibility – help design...

Read the full posting on Mercury's site ↗

Engineering

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