Founding Engineer (£80K - £150K + Equity) at YC-backed enterprise browser automation startup

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

Founding Engineer (Browser Automation)

Salary

£80K - £150K + Equity

Company Description

YC S23-backed enterprise browser automation startup serving decacorns and public insurance firms

Job Description

You will build the core infrastructure for an on-device browser agent that automates mission-critical workflows without APIs. Working across the full stack, you will develop a robust automation engine and secure environment used by global enterprises for identity management and security enforcement, defending against state-sponsored threats in real-time.

Location

London, UK

Why this role is remarkable

• Work at the frontier of "browser-using agents" in a high-stakes enterprise environment where your code secures mission-critical corporate bank accounts and SaaS tools.
• Join an elite engineering culture of Cambridge and Imperial alumni with backgrounds at TikTok, operating as a high-caliber team of four with zero bureaucracy.
• Exceptional growth potential with founding-team equity and a pathway to relocate to the San Francisco office with full US visa sponsorship if desired.

What You Will Do

• Scale and improve the core browser automation engine to handle complex web-based tasks and autonomous user provisioning.
• Develop and secure the on-device desktop environment using Electron to ensure reliable performance across macOS, Windows, and Linux.
• Partner directly with customers at decacorn scale-ups to diagnose challenges, design features, and ship production solutions within single-week cycles.

The ideal candidate

• At least 1 year of production software experience with a proven ability to ship high-quality features from concept to production independently.
• Deep technical curiosity and strong systems-thinking skills required to debug messy web automations and end-to-end encrypted environments.
• Proficiency in TypeScript and Postgres, with a strong desire to master Electron, browser extensions, and tools like Puppeteer or Selenium.

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.