Hiring.Camp

Founding Engineer, Platform

Castari

·

Aug 18, 2026

Salary
$250k – $350k/yr
Location
San Francisco, California, US
Type
Full-time
Department
Engineering
Source
Y Combinator

Description

MadeThis is your AI co-founder. Describe a business and it builds it, launches it, and runs it, autonomously. The agent writes the code, ships the product, answers the customers, and spends the ad budget. We're 3 people with 30,000+ businesses on the platform. We went from $0 to $1M in revenue in our first 90 days and we're on track for $10M ARR by December.

We're hiring our first engineers to build self-driving businesses at scale, for the people whose livelihoods now depend on them.

What you'll do

- Own core platform systems end to end: the agent runtime, billing, deploys, the storefront fleet.

- Scale infrastructure that runs tens of thousands of live businesses, each with real customers and real revenue.

- Ship daily. The distance between an idea and a customer using it is hours.

- Work directly with the founders. No layers between you and the decisions.

What success looks like in your first 30 days

- Shipped or improved features driving a $1M+ lift in platform revenue.

- Dozens of PRs merged and running in production.

- Evolved our software factory so the agents that build our customers' businesses produce measurably higher quality code.

- Saved MadeThis millions by optimizing infrastructure spend.

You might be a fit if

- You have deep expertise in a business function you've worked in before, like finance, marketing, sales, growth, or product, and you can build.

- Or you're a deep infrastructure engineer who wants their work to reach real businesses the same day it ships.

- Data or ML experience is a plus.

- You want ownership of problems, not a queue of tickets.

Details

- San Francisco, in person

- $250k+ salary, 1%+ equity

- Hiring 1 to 3 for this role

Skip the cover letter. Send us the best thing you've built and a few lines about why this. A link beats a résumé.

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