Sr. Full-Stack Engineer, Product

Pinwheel•New York, NY

7d•$160,000 - $200,000•Hybrid

About The Position

Pinwheel is building the next generation of financial products alongside major brands in the market. The company is seeking a senior full-stack Product Engineer for its Product Engineering team, which is responsible for customer-facing products such as public APIs, embedded SDKs, and customer management dashboards. This lean team collaborates closely with Product to maximize customer value and balances supporting customers, delivering the roadmap, improving the product, and maintaining existing systems.

Requirements

5+ years of experience building and maintaining full-stack applications, specifically with data modeling, application logic, and API design.
Prior experience working at an early-stage startup or small tech company.
Expertise with modern back-end languages/frameworks (e.g. FastAPI, Django, Rails, Gin).
Expertise with modern frontend web frameworks (React, Vue, etc.).
Played key implementation roles in projects with multiple teams and engineers.
Excited by working closely with customers.
Responsibly uses AI on top of fundamental skills, doesn’t replace them.
Maintains a high bar for technical quality and continues to level up.

Responsibilities

Help build the Bill Switch product to drive account primacy.
Contribute to new API versions to improve contracts and formalize product direction.
Firm up and improve the tax product for the next tax season.
Clean up old code that no longer serves the current product direction.
Build a new customer dashboard API aligned with the stack.
Build new integrations with banking platform partners and improve existing implementations.
Deeply understand customer needs and design systems to solve them.
Build, scale, and evolve data models, services, and systems that power APIs.
Design and ship impactful new functionality, especially focused on back-end APIs.
Maintain and improve the Python-based microservice stack.
Create and improve tooling, processes, and engineering standards.
Mentor engineers and help the team grow.