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Backend Engineer (+ Equity) at VC-backed AI retention platform

Jack & Jill
San Francisco, CA Full Time
POSTED ON 6/21/2026
AVAILABLE BEFORE 7/19/2026
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

Backend Engineer

Salary

Not Disclosed Equity

Company Description

VC-backed AI retention platform

Job Description

As a Backend Engineer at this VC-backed AI startup, you will build the core infrastructure powering intelligent agents that solve subscriber churn for consumer brands. You will design robust APIs, architect databases, and integrate third-party platforms. Working alongside experienced founders, you’ll own significant surface area and help shape a high-performance engineering culture.

Location

San Francisco, USA

Why this role is remarkable

  • High-impact ownership within a lean, 15-person team where every engineer shapes the core product and architecture.
  • Strong traction and financial stability, backed by top-tier VCs with a clear mission to solve churn for global brands.
  • An in-person, high-trust environment in San Francisco that fosters rapid iteration and direct collaboration with world-class founders.

What You Will Do

  • Design and maintain the core infrastructure, including APIs and database schemas, that powers production-ready AI agents.
  • Build and manage complex integrations with third-party platforms to enable seamless data flow for consumer brand clients.
  • Collaborate directly with the founding team to architect scalable systems and define the long-term technical roadmap.

The ideal candidate

  • At least 1 year of professional experience in backend development with a focus on server-side logic and performance.
  • Strong fundamentals in database management and API design, with an ability to ship reliable, high-quality code quickly.
  • A proactive, owner-mindset with a drive to solve complex problems and thrive in a fast-paced, in-person startup environment.

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.com Estimation for Backend Engineer (+ Equity) at VC-backed AI retention platform in San Francisco, CA
$86,930 to $109,614
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