Demo

Senior Engineer ($150k-$230k + Equity) at Spero Ventures-backed AI agent platform

Jack & Jill
San Francisco, CA Full Time
POSTED ON 6/2/2026
AVAILABLE BEFORE 7/1/2026
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

Senior Engineer (CTO Track)

Salary

$150k-$230k Equity

Company Description

Spero Ventures-backed AI agent platform with $3.8M in funding

Job Description

You will lead product engineering for a high-growth platform that enables creators to build and monetize white-labeled AI agents. As a core technical leader, you will architect full-stack features using Next.js and Python while driving the engineering culture during a critical scale-up phase in our San Francisco office.

Location

San Francisco, USA

Why this role is remarkable

  • Direct track to the CTO title within 6 months, offering a rare opportunity to transition from senior individual contributor to executive leadership.
  • Build the "Shopify for AI agents" in a fast-moving, Spero Ventures-backed startup that has already secured $3.8M in seed funding.
  • Influence the future of generative AI monetization by shipping features that handle complex agent logic, knowledge bases, and seamless multi-tool integrations.

What You Will Do

  • Architect and ship production-ready features using a modern stack of React, tRPC, Next.js, TypeScript, and Python backend services.
  • Collaborate directly with the founding CEO to define the product roadmap and make high-stakes technical decisions that impact growth.
  • Lead and mentor a growing engineering team, establishing best practices for code quality and rapid deployment in an in-person environment.

The ideal candidate

  • 4-12 years of professional experience with a track record of excellence at a Tier-1 tech company or as a CTO at a funded startup.
  • Deep technical expertise in full-stack TypeScript/React and Python backend development, with a passion for the generative AI ecosystem.
  • A high-velocity builder who thrives in an in-person, Mission District office environment and is ready for the responsibilities of technical leadership.

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.

Salary : $150,000 - $230,000

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