Meet Jack and Jill. Two AI agents that introduce remarkable people to remarkable companies. Jack is an AI agent that finds your next job and helps you land it. Already helping over 230,000 people take the next step in their career. Jill is an AI agent for recruiting. Already helping thousands of companies make their next great hire. 

Here's where it gets interesting. Jack and Jill work together. Jack knows what professionals are looking for, long before they're ready to move. Jill knows what thousands of companies need, far beyond what's written in the job description. When both sides match, they introduce the candidate and the decision maker directly. 

No cold outreach. No black hole. Just warm introductions that work.

Jack

AI Agent

Jill

Jack & Jill

Meet Jack and Jill. Two AI agents that introduce remarkable people to remarkable companies.

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

Frontend Engineer

Salary

Not Disclosed

Company Description

Well-funded AI productivity startup

Job Description

As a founding-team member, you will build a high-performance desktop application that empowers knowledge workers through advanced AI workflows. You will architect dynamic interface systems that adapt to complex agent outputs, ensuring a seamless, low-latency experience on diverse hardware. This role involves owning state management, streaming capabilities, and foundational frontend architecture.

Location

Remote

Why this role is remarkable

Shape the core architecture of a high-intensity startup from the ground up as a founding engineer with significant influence.Work alongside a veteran team with successful exits and leadership experience at top-tier global technology firms.Access a high-ownership environment with meaningful equity and the opportunity to define the future of human-AI desktop interaction.

What You Will Do

Architect and build an adaptive frontend system that renders dynamic components based on real-time AI agent outputs.Implement a robust state management layer and streaming infrastructure for multi-turn, agentic conversational interfaces across process boundaries.Optimize application performance for low-spec hardware to ensure a snappy user experience on standard corporate laptops.

The ideal candidate

Deep mastery of frontend fundamentals and rendering models with a focus on high-performance web and desktop technologies.Proven experience building complex state management systems and abstractions that survive radical product evolutions and architectural shifts.A performance-as-a-craft mindset, capable of debugging from flame graphs and optimizing rendering cycles for maximum responsiveness.

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.



Frontend Engineer at well-funded AI productivity startup

What the job involves