AI Product Engineer at Sekai

Jack & Jill
Jack & Jill

Software Engineering, Product, Data Science

United States

Posted on Sep 8, 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

AI Product Engineer

Salary

Not Disclosed

Company Description

Sekai is a $30M Series A startup backed by Khosla, a16z, Mayfield, and A* building the "TikTok for mini-apps"—an AI-driven consumer platform where 2M+ users create and share interactive content instantly through simple text descriptions.

Job Description

As an AI Product Engineer at Sekai, you will build and ship user-facing features end-to-end for a platform used by millions. You'll leverage an AI-native workflow—using tools like Cursor and Claude to write up to 95% of your code—to rapidly iterate on interactive consumer experiences alongside a team of veteran social-media builders.

Location

Remote, USA

Why this role is remarkable

  • Join a $30M Series A startup backed by premier investors including Khosla Ventures, a16z, Mayfield, and A*.
  • Work at the cutting edge of AI-native engineering where tools like Cursor and Claude Code are the core of the development cycle.
  • Influence a product used by over 2 million people, working alongside an elite team of consumer-social veterans from TikTok.

What You Will Do

  • Architect and implement user-facing features end-to-end, leveraging Next.js and Python within an AI-first development workflow.
  • Work directly with founders and product owners to translate creative concepts into playable, AI-generated mini-apps for the Sekai platform.
  • Maintain and optimize production systems serving millions of users, applying strong judgment to balance speed and stability.

The ideal candidate

  • Full-stack capability with Next.js and Python, plus experience shipping features at a fast-moving startup or consumer-social company.
  • Deeply AI-native approach to engineering, with demonstrated experience using agent workflows and LLMs to accelerate development.
  • High ownership mindset and a passion for building delightful user experiences that bridge the gap between AI and interactive content.

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.