Hammock

Hammock is building the first HSA/FSA that works for modern life—letting people spend pre-tax dollars on everyday wellness like the gym, recovery, and prevention. Backed by a16z Speedrun and others. Small NYC team shipping fast and hiring two engineers. Backend Engineer: Build the financial and data infrastructure powering Hammock—payments, ledgers, health eligibility, and integrations with Plaid, Finch, and Lithic. Ideal strong backend chops in payments/fintech/healthcare and deep understanding of relational/transactional data systems. Full Stack Engineer: Own product features end-to-end across web and mobile. Ship dashboards, payments UX, and other consumer surfaces. Comfortable moving between frontend and backend and having real input into product functionality and feel. Ideal: built consumer products before, opinionated about UX, comfortable turning ambiguous ideas into shipped features.