Founder Intern (now and Summer 2026)

San Francisco, CA
Internship
Visa Sponsorship

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

AI employee for consumer lending

Other roles at Kastle

Interested?

Let me introduce you to the founders.

Skip the process

Job details

Salary

$8,000 - $8,750

Location

San Francisco, CA

Company

NameKastle
IndustryB2B
Team Size15

Funding

Total raised

$2.8M

Last stage

Seed

Investors

Y Combinator
CCommerce Ventures

Founders

Rishi Choudhary

Rishi Choudhary

Co-founder & CEO

LinkedIn
Nitish Poddar

Nitish Poddar

Co-founder & CTO

LinkedIn

What happens next.

No applications, no recruiter spam. Just the intro.

01

Confirm the fit

A few questions to make sure this role is the right shape for you. Two minutes.

02

I pitch you to the company

I write the intro, send it to the founder, and handle the back-and-forth.

03

A meeting lands on your calendar

If they’re a yes, I book the chat. You show up — that’s the whole job-hunt.