Founding Engineer

Spring; New York (NY); Presencial; USD 175.000 - 250.000; Jornada completa

Descripción de la vacante

Spring is hiring a founding engineer in New York City to build AI-powered funding platforms for consumer brands. You will work directly with the founders, owning features from idea to production and shaping the product at a pivotal early stage.

In this role you will ship automated funding decisions, financial tooling, and agent interfaces, with money movement and an auditable ledger at scale. This is a hands-on, in-person, full-time position with equity.

Formación

• Shipping and operating products across the stack.
• Depth in AI agents, data infrastructure, or distributed systems.
• High bar for correctness and craft; deliver after launch.
• Experience using AI coding tools effectively.

Responsabilidades

• Build automated funding decisions and reliable workflows.
• Develop financial tools to track invoices, cash flow, and profitability.
• Create interfaces for agents that adapt as they work.
• Implement money movement flows and ensure ledger accuracy.

Conocimientos

Product shipping

AI agents / data infra

Engineering craftsmanship

AI coding tools

Descripción del empleo

About us

Spring provides working capital to consumer brands. In under a year, we've advanced more than $200 million to over 200 customers. Three people built nearly the entire technology stack. Spring is backed by a $300 million bank facility and $30 million in equity.

We're hiring a founding engineer to build the next stage: AI agents that manage funding decisions, money movement, and repayment at scale, alongside software that helps our customers run their finances. You'll work directly with the founders to decide what gets built and own it from idea to production.

Our engineering team brings experience from Two Sigma, Airbnb, Meta, and Wolverine Trading.

Why we start with capital

Customers connect their bank accounts, accounting systems, and retailer data to access funding. Those connections give us a foundation for building software around the same information they use to manage cash, collect payments, and plan growth. You'll help turn that access into products founders and finance teams use every day.

What you'll build

• Automated funding decisions. Build the next version of our funding-decision engine to serve thousands of businesses. Translate credit rules into reliable workflows across financial analysis, funding, and repayment, with evaluations that determine whether a change is ready to ship.
• Financial products. Connect bank, accounting, and retailer data into a coherent view of a brand's business. Build tools for tracking invoices and deductions, forecasting cash flow, understanding profitability by product and retailer, and syncing results back to accounting systems.
• Interfaces for working with agents. Build interfaces that change as an agent works, making its actions visible and letting the customer direct the next step. Use real interactions and outcomes to improve the agent's tools and workflows.
• Money movement. Build funding and repayment flows over bank APIs, and the ledger and reconciliation systems that keep payments and balances accurate.

How we build

Our stack includes Python, TypeScript, React, PostgreSQL, and AWS. We work in one monorepo and use coding agents extensively. You'll shape what they build, review their work, and own the result in production.

What you'll bring

• A record of shipping and operating products across the stack, from the interface to the systems behind it.
• Depth in at least one of AI agents, data infrastructure, or distributed systems, and the ability to learn across the others.
• A high bar for correctness and craft. You work quickly, catch edge cases, keep systems simple, and follow through after launch.
• Experience using AI coding tools effectively, with the judgment to evaluate and improve their output.

Experience in trading, payments, fintech, or consumer goods is welcome, but not required.

Details

• Location: In-person in New York City
• Employment: Full-time
• Compensation: $175,000–$250,000 annual base salary + equity
• Visa sponsorship: Available (H-1B, O-1, TN)