Founder Intern (now and Summer 2026)

Kastle is a workflow automation tool for mortgage lenders and servicers. Our cutting-edge technology automates sales, collections, and customer service interactions, enhancing operational efficiency and customer…

Location: San Francisco, CA
Company size: 5–10
Posted: 6d ago
Via: Yc

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Founder Intern (now and Summer 2026) · Kastle

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Job title: Founder Intern (now and Summer 2026)
Job location: San Francisco
Job listing URL: https://www.ycombinator.com/companies/kastle/jobs/GqJhpSZ-founder-intern-now-and-summer-2026
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!

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