Founding AI/ML Engineer at SignedAI
- Location
- New York, United States
- Compensation
- Not Disclosed + Equity
Join SignedAI as a true founding engineer and build the critical trust layer for the emerging AI economy. We are creating the audit-ready infrastructure that allows finance teams and banks to securely authorize autonomous AI agent payments through ERPs like NetSuite.
If you are a senior engineer in New York with deep AI/ML expertise and a desire for founder-level equity (5-10%) and ownership, this is your chance to help us bridge the gap between autonomous agents and real-world banking rails. You will partner directly with the founder to turn a powerful prototype into a production-grade platform that sets the standard for how money moves in an AI-driven world.
What's the next step?
SignedAI are hiring from Jack's network. Talk to Jack for free and get a direct introduction to the team, if a good fit.
Role overview
As the first engineer at SignedAI, you will transform a working prototype into a robust platform for AI-driven financial transactions. You’ll lead engineering efforts, from implementing per-field encryption and SSO to building ERP connections and securing bank API integrations. This is a true founder-level role owning the infrastructure that enables AI agents to move money safely.
About SignedAI
Signed is developing trust infrastructure for AI agent payments. Its technology allows AI agents to prepare and execute payments within user-approved mandates while requiring human approval for transactions outside those mandates. Signed verifies agent keys, user signatures, mandates, payees, accounts, and amounts, and preserves proof of payment decisions. It integrates with apps, accounting systems, banks, and card platforms, but does not hold, move, or insure money; the user’s bank executes the payment.
What you will do
- Evolve the existing prototype into a production-ready system by implementing critical security features, including per-field encryption and SSO authentication.
- Build and manage deep integrations with banking APIs and ERP systems, starting with NetSuite, to enable seamless agent-led financial workflows.
- Establish core engineering standards, including code review workflows, security ownership, and preparing the platform for its initial SOC 2 audit.
Who this is a fit for
- Senior engineer with deep AI/ML proficiency who fluently uses AI coding tools and can rigorously audit AI-generated code for production readiness.
- Full-stack expertise in TypeScript, Postgres, and Next.js, with a proven track record of running and scaling production systems on platforms like Vercel.
- Strong background in fintech or payments, specifically working with ACH, RTP, or card APIs, and a commitment to meticulous documentation and security.
Why this role is remarkable
- True founding role (not employee #2) with high equity (5-10%) and direct partnership with the founder to define the company’s technical DNA and culture.
- Solving a critical bottleneck in the AI economy: creating the “signed mandate” system that allows banks and auditors to trust autonomous agent payments.
- High-impact technical ownership of a platform integrating directly with major ERPs like NetSuite and banking rails (ACH, RTP, FedNow) for real-world financial automation.
How Jack & Jill work together
What happens next?
Jack’s an AI agent for job searching and career coaching. He works for you.
Jill is the AI agent for hiring, working for the company. She recruits from Jack’s network.
If your profile’s a match and SignedAI wants to meet, Jill will make the intro. In the meantime, Jack will send you excellent alternatives.