Backend Engineer

Hammock (https://usehammock.co/) | Backend Engineer, Full Stack Engineer | NYC (4 days in-person, 1 flexible) | Full-Time | $150-225k Hammock is building the first HSA/FSA that actually 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. We're a small team in NYC shipping fast and hiring two engineers. Full JDs: https://www.notion.so/hammock/Hammock-Open-Roles-3499f813ef2... Backend Engineer — Build the financial and data infrastructure powering Hammock — payments, ledgers, health eligibility, integrations with Plaid, Finch, Lithic. Ideal: strong backend chops in payments/fintech/healthcare, 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. You'll move fluidly between frontend and backend and have real say in how the product works & feels. Ideal: built consumer products before, opinionated about UX, comfortable turning ambiguous ideas into shipped features. Stack: A lot of Typescript & Postgres, Next.js/Expo/React Native, Railway/Datadog/ PostHog. Reach out: hiring@usehammock.co - let us know you're coming from HN. We're a small team and will respond quickly!