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Jack & Jill

Founding Engineer ($120k-$190k + Equity) at Toolkit

Jack & Jill
United States · Full-time · Mid-Senior

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.


Founding Engineer


Salary: $120,000-$190,000 + Equity


Company Description: VC-backed fintech SaaS eliminating grunt work.


Job Description:

As a Founding Engineer, you'll be a core part of an early team, directly impacting product, culture, and company trajectory. Work with founders to build a platform from the ground up, tackling difficult technical problems to revolutionize finance operations and eliminate tedious tasks.


Location: San Francisco, USA


Why this role is remarkable:

  • Massive impact on product, culture, and company trajectory from day one.
  • Well-funded seed-stage startup backed by top-tier VCs.
  • Opportunity to solve unglamorous but critical problems that slow down every company.


What you will do:

  • Build robust, scalable data models for ingesting and standardizing data.
  • Architect a high-performance reconciliation engine for rapid processing.
  • Design an intuitive and powerful Excel plug-in for seamless user experience.


The ideal candidate:

  • Possesses 0-3 years of professional experience with a passion for coding.
  • Versed in modern web stacks (e.g., Typescript, React) with strong fundamentals.
  • Hungry for ownership and finds satisfaction in solving complex, detail-oriented problems.


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.

Key Skills

Ranked by relevance

ai typescript react grunt excel saas
Login to Apply
Posted
Apr 14, 2026
Type
Full-time
Level
Mid-Senior
Location
San Francisco

Industries

Technology Information Internet

Categories

Finance Sales

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