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Founder Intern

San Francisco,...
K

Kastle

Startup
Category
Technical
Experience
0-3 years
Type
Internship
Location
San Francisco, CA, US
Salary
$8,000 - $8,750
Job Description
Benefits & Culture
Transformative experience
Work with founders
Real product shipping
Unstructured environment
High-paced environment
Core Values
Relentlessly resourceful
Learns fast, moves faster
Cares about quality
Extreme autonomy
This goes straight to the founder
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No recruiters. Founders reply directly.

Founder Signals
Response Rate
85%
Avg Response Time
2 hours
Compensation Calculator
In startups, higher salary usually means lower equity.
Salary (affects equity %)
Link salary ↔ equity
$125,000
$8,000$8,750
Equity % (auto from trade-off model)
0.51%
0%5%
Projected Exit Value
$350,000,000
$10M$500M
Live Trade-off
Salary
Equity %
Est. Equity Value at Exit
$100,000
0.51%
$892,500
$125,000
0.51%
$892,500
$150,000
0.51%
$892,500
$175,000
0.51%
$892,500

Advanced Salary & Equity Calculator

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Role Overview

We are looking for an intern to start ASAP, in person in San Francisco.

As an intern, this will be the most intense, competitive, and transformative experience of your life. You’ll work directly with the founders and a small team of exceptionally smart, driven peers who are building the operating system for consumer lending.

Responsibilities:

  1. Ship real products.
  2. Touch every part of the business from customer support, growth, operations, engineering, and sales.
  3. Work directly with founders and unblock them.
  4. Handle the hardest, most boring, least glamorous tasks — without flinching.
  5. Operate with extreme autonomy in an unstructured, high-paced environment.
  6. 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