Point your AI agent at freehire and let it find you a job.

Get the CLI →

nsimechanical

New

Founding Engineer - $180,000–$250,000 + Equity

Posted Updated
Discussion

Founding Engineer - $180,000-$250,000 + Equity

Location: New York City | In Person

Build AI-powered systems that help lenders verify invoices, assess risk, and collect payments in the multitrillion-dollar receivables market.

We're seeking a Founding Engineer who wants meaningful ownership, direct customer involvement, and the opportunity to build complex systems from the ground
up. You'll work closely with technical leadership, own products from development through production, and speak directly with the lenders who use them.

What You'll Build

list of 5 items
• Knowledge ingestion: Turn receipts, spreadsheets, portal data, payment histories, and fraud signals into reliable information for invoice verification.
• Browser agents: Develop adaptive agents that navigate more than 1,500 portals, handle changing interfaces and authentication workflows, and retrieve
verification data at scale.
• Risk systems: Build a continuously updated view of lending risk as invoices are funded and payments arrive.
• Voice AI: Create context-aware voice agents that support invoice collections and adapt conversations in real time.
• Evaluation pipelines: Develop rigorous testing and evaluation systems that measure accuracy and reliability before release.
list end

Your Responsibilities

list of 5 items
• Own systems end to end, including architecture, implementation, deployment, operating costs, and production reliability.
• Participate in lender onboarding, customer calls, and product expansion.
• Investigate verification failures, identify root causes, and deliver fixes.
• Make technical decisions in an early-stage environment where requirements evolve quickly.
• Take responsibility for production issues, including urgent incidents outside standard hours.
list end

What We're Looking For

list of 6 items
• Experience taking a product or system from concept to production and supporting it after launch.
• Strong computer science fundamentals and distributed system design skills.
• A record of building reliable software and solving ambiguous technical problems.
• Experience in one or more of the following:
list of 4 items nesting level 1
◦ Financial technology or another heavily regulated industry.
◦ Production AI agents that perform complex workflows.
◦ Voice AI and telephony, including call transfers and context handoffs.
◦ Search, retrieval, knowledge ingestion, or time-series analysis.
list end nesting level 1
• Comfort working directly with customers.
• Readiness for a demanding, fast-moving, in-person startup environment.
list end

You do not need experience with every part of the stack, but you should be comfortable learning quickly and taking ownership.

Technology Stack

Backend: Python
Frontend: TypeScript, React, Next.js
Infrastructure: AWS, Terraform, Docker

Preferred experience: Full-stack Python and TypeScript development, evaluation-driven development for large language models, and financial services software.

Your First 90 Days

list of 3 items
• Month 1: Ship to production during your first week and take ownership of a core system.
• Month 2: Participate in lender calls and independently diagnose and resolve verification failures.
• Month 3: Own a system end to end, including performance, costs, and incident response.
list end

Compensation & Work Authorization

list of 4 items
• Base salary: $180,000-$250,000, depending on experience.
• Equity: Meaningful founding-engineer equity, with details discussed during the first call.
• Location: New York City; in-person work required.
• Work authorization: Must already be authorized to work in the United States. H-1B transfers can be considered.
list end

Interview Process

Screening call → Paid work trial → Leadership interview → Offer

The anticipated process takes approximately one to two weeks, with an initial application response targeted within 24 hours.

To apply, submit your resume and links to relevant projects, products, or code you've built.

Skills

Apply

See also

Software Engineering jobs by country — openings, pay and top skills →

Tailor your CV for this role?

We couldn't check your fit for this role — add a CV to your profile to see it next time.