# Founder Intern (now and Summer 2026)

**Company:** [Kastle](https://hotfix.jobs/companies/kastle)
**Location:** San Francisco, CA
**Role:** Fullstack Engineering
**Salary:** $100k – $100k/yr
**Experience:** 0+ years
**Skills:** Engineering, Customer Support, Growth, Operations, Sales
**Posted:** 2025-09-09

> Founder Intern works directly with founders on all aspects of an AI consumer lending startup, shipping products, handling operations from support to engineering, and operating autonomously in a high-intensity environment. Requires being very technical and relentlessly resourceful.

## Job Description

## Responsibilities
- Ship real products.
- Touch every part of the business: customer support, growth, operations, engineering, and sales.
- Work directly with founders and unblock them.
- Handle the hardest, most boring, least glamorous tasks — without flinching.
- Operate with extreme autonomy in an unstructured, high-paced environment.
- Take vague prompts like “build something that helps the company grow” and turn them into working systems — on your own, or by rallying others to help.

## Ideal Candidate
- Relentlessly resourceful.
- Learns fast, moves faster.
- Cares about quality.
- **Very Technical**.
- Can start next week.

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**Apply:** https://hotfix.jobs/jobs/abfd94c0-ef7e-4081-be52-f0459ad0517e
**Canonical:** https://hotfix.jobs/jobs/abfd94c0-ef7e-4081-be52-f0459ad0517e