Jack & Jill

Frontend Engineer ($160K–$250K + Equity) at Greptile

Jack & Jill San Francisco, CA

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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: $160K–$250K + Equity


Company Description: Greptile - Benchmark & YC-backed AI code review layer


Job Description:

As Greptile's first dedicated Frontend Engineer, you will own the entire product experience for 7,000+ companies. You'll build the TypeScript/React dashboard that reviews one billion lines of code monthly for customers like Nvidia and Coinbase. This is a foundational role in a talent-dense, in-person team building the future of autonomous code validation.


Location: San Francisco, USA


Why this role is remarkable:

  • Join a high-growth startup backed by $30M from Benchmark, YC, and Paul Graham, currently growing 25–30% month-over-month as the standard AI review layer.
  • Take full ownership of the user interface for a product relied upon by thousands of developers at world-class engineering organizations like Brex and Zapier.
  • Work in a talent-dense environment in North Beach, SF, alongside former Stripe, Facebook, and Figma engineers who value high-speed shipping and in-person collaboration.


What you will do:

  • Architect and maintain the Greptile dashboard and customer-facing analytics using TypeScript and React to provide engineering leaders with deep visibility into code quality.
  • Partner closely with the design engineer to iterate on and ensure a fast, consistent, and beautiful frontend experience across the entire application.
  • Build autonomous agents that learn idiosyncratic coding standards and identify high-signal PR feedback to reduce noise for thousands of enterprise developer teams.


The ideal candidate:

  • 3–7 years of professional frontend experience with deep, production-level expertise in TypeScript and ReactJS.
  • A strong sense of craft and design taste, with a track record of building beautiful, high-performance UIs at design-forward companies or through complex personal projects.
  • Thrives in high-growth, in-person environments and possesses a B.S. in Computer Science or an equivalent degree from a top-tier institution.


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.


Next steps

Step 1. Visit our website.

Step 2. Click 'Talk to Jack'.

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.

  • Seniority level

    Mid-Senior level
  • Employment type

    Full-time
  • Job function

    Engineering
  • Industries

    Technology, Information and Internet

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