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Jack & Jill

Staff Fullstack Engineer ($170k-$250k) at Playlab AI

Jack & Jill · United States

  • On site
  • Full-time
  • United States
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About the role

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

Staff Fullstack Engineer

Salary

$170k-$250k

Company Description

Playlab AI is a mission-driven tech non-profit building an open-source platform that empowers over 60,000 educators to create custom, no-code AI applications for their classrooms. Backed by a high-impact mission, they provide teachers with the tools to build tailored learning experiences without needing a team of engineers.

Job Description

Join a high-impact, fully remote team as a Staff Fullstack Engineer to push the boundaries of AI-native interfaces. You will architect and build the core no-code app builder, enabling educators to design sophisticated AI agents and interactive learning experiences. This hands-on role is critical for democratizing AI technology within global education systems.

Location

Remote

Why this role is remarkable

  • Lead the development of a platform already used by 60,000+ educators to transform classroom learning through accessible, no-code AI tools.
  • Join a lean, high-agency team of 10 engineers where your architectural decisions directly shape the future of open-source AI in education.
  • Work at the cutting edge of AI interaction, building dynamic components that adapt from writing editors to autonomous AI agents in real-time.

What You Will Do

  • Architect and ship end-to-end subsystems using TypeScript, Remix, and Node.js, managing everything from database schema design to complex frontend interfaces.
  • Design and implement the core application builder, allowing educators to create sophisticated AI apps and agents using natural language and collaborative tools.
  • Build deep integrations with major educational platforms like Google Workspace and Canvas LMS to ensure seamless deployment in diverse classroom environments.

The ideal candidate

  • Has 7+ years of experience building production-scale web applications with modern React frameworks like Remix and Node.js backend services.
  • Demonstrates proven experience shipping AI-powered features, including LLM integrations, streaming interfaces, and real-time collaboration using WebSockets or CRDTs.
  • Exhibits staff-level engineering leadership with a history of mentoring teams and driving strategic technical decisions in high-growth or mission-driven environments.

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.