Founder Intern (now and Summer 2026)
kastle
San Francisco
Posted Sep 9, 2025
$100,000 per year
- Full-time
- Intern
Job description
### 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!