Software Engineer - Mercury Command

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...

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 paym...

Ship new capabilities users love
Feel a strong sense of product ownership and actively seek responsibility – help design and ship new Command skills
Partner with product and compliance teams to define what "working correctly" means for each new capability, then build the tests that prove it
Join a small but mighty team of experienced product and AI engineers building the future of Mercury
This list is illustrative. Command is a product in motion and priorities will shift as we learn. The right person should be comfortable working in ambiguity, in a scrappy startup environment

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
Actively incorporates AI tools into their workflow and is excited about leveraging them to amplify their impact — whether that's accelerating development, improving code quality, or finding creative solutions to hard problems

If this role interests you, we invite you to explore our public demo at demo.mercury.com.
Mercury values diversity & belonging and is proud to be an Equal Employment Opportunity employer. All individuals seeking employment at Mercury are considered