Founding Engineer ($120K - $300K + Equity) at $14M Sequoia-backed interactive storytelling startup

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

The next step is to speak to Jack.

Job Title

Founding Engineer

Salary

$120K - $300K + Equity

Company Description

$14M Sequoia and Kleiner Perkins backed interactive storytelling startup

Job Description

Join a high-growth consumer platform reaching #4 in the App Store with only three employees. You will own the full-stack architecture and personalized recommendation infrastructure serving 2T tokens monthly. This is a rare opportunity to build the future of entertainment alongside founders from Substack and world-class AI researchers in San Francisco.

Location

San Francisco, USA

Why this role is remarkable

• Exceptional traction with 100K+ teenagers spending 3+ hours daily in-app and 40% MoM growth in user engagement.
• Elite pedigree working directly with the founding designer of Substack and a CTO who trained the world's first image-editing AI.
• Massive technical scale serving over 200 million user messages per month with a lean, world-class engineering team.

• Take end-to-end ownership of the core app surface and critical product features used by millions of global users.
• Design and scale personalized recommendation systems to handle high-concurrency traffic and massive token distribution.
• Architect and maintain robust infrastructure that goes far beyond simple deployments to support complex, interactive story engines.

• Proven track record of building and scaling production infrastructure rather than just managed deployments.
• Previous experience in a high-growth startup environment or a portfolio of deeply technical and meaningful side projects.
• A genuine passion for fandom, reading, or fanfiction culture to help shape the next century of digital storytelling.

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.

Next steps

Step 1. Visit the job listing.

Step 2. Click 'Talk to Jack', or go straight there: https://www.jackandjill.ai/jobs/founding-engineer-120k-300k-equity-at-14m-sequoia-backed-interactive-storytellin-7b3041b0-a87b-4604-8c57-6496d092adc0?utm_source=linkedin&utm_medium=job_post&utm_campaign=featured_role_7b3041b0-a87b-4604-8c57-6496d092adc0

Step 3. Talk to Jack so he can understand your experience and ambitions.

Step 4. Jack will make sure Jill (the AI agent working for the company) considers you for this role.

Step 5. If Jill thinks you're a great fit and her client wants to meet you, they will make the introduction.

Step 6. If not, Jack will find you excellent alternatives. All for free.

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.