Senior Fullstack Engineer (#f448 Job New York City area,New York USA,Software Development

Position: Senior Fullstack Engineer (#f448)

Senior Fullstack Engineer

Full-time New York, NY, US Exclusive confidential search — details shared with qualified applicants.

Benefits You'll Love

Competitive compensation and early-stage equity
401(k) retirement plan
Comprehensive health and dental insurance
Flexible time off policy
Paid leave for new parents
Fully provisioned kitchen for the onsite team

Become a Key Player as a Senior Fullstack Engineer

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. This is a Hybrid role (3 days onsite) based in New York.

Here's How You'll Make an Impact on the Team

Build fast, well-structured frontend experiences in React and Type Script
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/Type Script SPA for the RCM product and a Django server-rendered Marketplace app with bundled JS

Here's What You'll Need to Be Successful in This Role

7+ years of software engineering experience with a strong frontend focus
Deep expertise in React and Type Script
Solid understanding of UI fundamentals: layout, performance, and state management
Hands-on experience with Tan Stack Router and Tan Stack 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

Here's What Else Might Help You Out

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

Pay Range

$180K - $220K/year

Ready to Make Your Mark?

This role may fill quickly. Submit your resume to be considered.

Apply with Pioneers here