Engineering Intern — Summer 2027
About Flint
Flint is the first self-improving system for performance marketing. We connect to brands' ad accounts and optimize them through creating pages instantly for each ad group and running a learning loop that continually improves conversions. We just signed a Fortune 10 customer, and within 48 hours their customer acquisition cost decreased by 50%. We're backed by Accel, Sheryl Sandberg (former Meta COO)'s venture fund SBVP, and Neo.
What you will do day to day
Own a part of the product that's live with customers and stays live after you leave.
Work anywhere in the stack, from the UI down to the infrastructure it runs on.
Use LLMs and agent workflows as everyday tools. The product is built out of them.
Ship to production in your first few weeks, then keep going.
At the end of the summer, show the whole company what you built and what it moved.
Who you work with
You report to and sit with the engineers who own the part of the product you're working on.
Location, dates, and work authorization
This r
