Founder Intern (now and Summer 2026)
Department: Intern
Location: San Francisco
Compensation: $100K
Employment Type: FullTime
About the role
We’re 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.
You will:
Ship real products.
Touch every part of the business from 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
If that’s you, email us: founders at kastle dot ai. Just tell us why you’re a fit and add “Founder Intern” in subject. Keep it short. We’ll know.
About Kastle
Kastle is automating manual workflows for the financial services industry using AI agents. We work with the largest mortgage lenders in America and are hiring!
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