Founding CTO ($160k-$200k + Equity) at Frank

Jack & Jill
Jack & Jill

Software Engineering · Full-time

New York, NY, USA

USD 160k-200k / year + Equity

Posted on Sep 3, 2026
This is a job that Jill, our AI Recruiter, is recruiting for on behalf of one of our customers.

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Founding CTO

Salary

$160k-$200k + Equity

Company Description

Frank is a New York-based fintech building an AI-powered agentic bank for the 36 million underserved small businesses in the US.

Job Description

As Founding CTO, you will architect Frank’s entire platform from the ground up, integrating money-movement infrastructure with a sophisticated AI agentic core. You’ll lead technical strategy, hire the first engineering team, and build the systems powering a deposit-backed credit card currently seeing 5-10% daily growth following its initial launch.

Location

New York, USA

Why this role is remarkable

  • True founding ownership with a blank slate to shape the technology, culture, and product strategy alongside experienced co-founders Will and Todd.
  • Tremendous early traction with over 1,000 SMBs signed up in just four weeks and a consistent daily growth rate of 5-10%.
  • A unique opportunity to define the Agentic Bank category, utilizing LLMs to automate the complex financial lives of millions of small business owners.

What You Will Do

  • Architect and build the core platform including money-movement infrastructure, ledgers, and integrations with major issuer-processors like Lithic, Marqeta, or Stripe Issuing.
  • Develop the AI agentic core and frameworks that proactively manage customer financial tasks, including the data pipelines and guardrails required for production AI.
  • Own the end-to-end security posture and compliance path, managing SOC 2 readiness and the technical controls required by sponsor banks and regulators.

The ideal candidate

  • 5+ years of experience building production software, including several years as an engineering leader, founder, or first engineer at a high-growth startup.
  • Deep expertise in regulated fintech environments, having navigated payments, banking, or lending systems while maintaining rigorous standards for reliability and idempotency.
  • AI-native builder who has successfully shipped LLM-powered systems into production and uses modern AI tooling to outpace traditional engineering teams.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

  • Jack's an AI agent for job searching and career coaching. He works for you.
  • Jill is the AI recruiter working for the company. She recruits from Jack's network.
  • If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.

Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.

We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.