Founding Full-Stack Engineer at YC AI Fintech | FFSE-001

Dynamism partners with founders of high-potential startups backed by select investors, including Y Combinator, Sequoia, and a16z. We fuel their growth by identifying and connecting them with engineers who bring “founder energy”—the drive, adaptability, and ambition needed to thrive in fast-paced environments.

We’re excited to support the founder of a trailblazing AI startup, backed by Y Combinator, a top-tier VC, and successful AI/SaaS founders, in hiring a Founding Full-Stack Engineer.

This startup delivers AI-powered bookkeeping and financial modeling for fast-growing companies. By combining cutting-edge AI with top-tier customer service, they’re offering a seamless financial back-office experience. In just six months, they’ve grown to over 40 paying customers—venture-backed startups—and raised $4.3M in funding.

This is a rare opportunity to join an early-stage, fast-growing AI company that’s transforming accounting and finance workflows with generative AI. As the Founding Full-Stack Engineer, you’ll play a key role in building AI-native software and setting the technical and cultural foundations of the company.

Role Overview

The Founding Full-Stack Engineer will lead the development of AI-driven finance and accounting software solutions. You’ll work closely with the founders, take ownership of the technical infrastructure, and shape the product roadmap while ensuring security and compliance. This is an ideal role for entrepreneurial engineers passionate about creating AI-powered solutions in the finance space.

Key Responsibilities
• Architect and develop AI-driven software for finance and accounting workflows.
• Collaborate with founders on vision, strategy, and product roadmap.
• Manage technical infrastructure (databases, servers, APIs) with a focus on security and compliance.
• Lead and mentor a growing team of engineers and data scientists.
• Stay up-to-date with AI and finance advancements to keep improving the product.

Tech Stack
• Languages & Frameworks: TypeScript, Next.js, React.
• Tools: Temporal, Postgres.

Minimum Requirements
• 5+ years of experience building web applications with JavaScript/TypeScript frameworks (e.g., Express.js, Next.js).
• Proven full-stack development experience, particularly in building applications from scratch.
• Ability to wear multiple hats in a fast-paced startup environment.

Nice-to-Haves
• Experience in AI, finance, or accounting.
• Familiarity with startups like Ramp, Brex, Numeric, Puzzle, or Pilot.com.
• Strong motivation to work in a startup.

What They Offer
• Competitive salary: $160k – $210k.
• Equity: 0.5% – 1.0%.
• Health, dental, and vision insurance.
• Hybrid work policy with WFH flexibility.
• Visa sponsorship available (TN, E-3, H1B transfer).