Senior Fullstack Engineer (#f448)

NextDeavor•New York, NY

2d•Hybrid

About The Position

This is a Hybrid role (3 days onsite) based in New York. You will build and ship customer-facing experiences that drive the revenue cycle management (RCM) product while contributing to the Marketplace. You’ll partner closely with product, business stakeholders, and other engineers to shape solutions and own features end-to-end.

Requirements

7+ years of software engineering experience with a strong frontend focus
Deep expertise in React and TypeScript
Solid understanding of UI fundamentals: layout, performance, and state management
Hands-on experience with TanStack Router and TanStack Query (or strong opinions about routing/data fetching)
Ability to build and maintain Python/FastAPI endpoints and data models
Strong product instincts, attention to detail, and sound implementation judgment
Familiarity with coding agents and ability to articulate their strengths and limitations

Nice To Haves

Experience with payment flows, billing systems, or insurance-adjacent products
Familiarity with Zod and schema-driven API clients
Background in B2B SaaS or workflow-heavy products
Healthcare or dental industry experience

Responsibilities

Build fast, well-structured frontend experiences in React and TypeScript
Own features end-to-end, from component/state management through API integration and deployment
Contribute to backend APIs using Python and FastAPI
Collaborate with product and business stakeholders to translate requirements into usable interfaces
Participate in code reviews, architecture discussions, and engineering standards
Mentor other engineers and advocate for frontend quality across the team
Navigate two frontend contexts: a React/TypeScript SPA for the RCM product and a Django server-rendered Marketplace app with bundled JS