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Senior Full Stack Engineer – High-Impact Product Work (Fintech). I’m hiring a full stack engineer for a high-growth NYC fintech, building the tools that help banks and startups make critical decisions around fraud, risk, and customer onboarding. This team owns the core platform powering human review workflows – when automation isn’t enough. You’ll be shipping high-usage, high-trust features end-to-end: surfacing context, guiding decisions, and helping protect millions of users from fraud. You’ll be working with a tight-knit team (~8 senior engineers) and a modern TypeScript stack: React, Node, Postgres, AWS.
Job Responsibility:
Build product features used daily by fraud/risk teams at 600+ banks and fintechs
Lead full-stack projects that span frontend UX, backend services, and platform reliability
Collaborate closely with design, product and engineering guilds (e.g. security, observability)
Help shape the architecture of tools that power decision-making at scale
Requirements:
Strong experience with TypeScript, React and/or Node.js
Experience building internal tools, developer platforms or data workflows
Nice to have:
Enjoy working across the stack to ship reliable, clean product features
Care about intuitive UX and building for trust, clarity and speed
What we offer:
High-impact work on a mission-critical platform
Profitable company, well-funded, growing fast
Hybrid 2x/week in Union Square HQ – real ownership and visibility
Product-first culture with strong engineering foundations