# On Rails — Eddie Galindo & Kagen Hearn: Rate Limiting For Your Customers

> Source: <https://rubyonrails.org/2026/9/1/on-rails-kagen-hearn-and-eddie-galindo-ascend>
> Published: 2026-09-01 00:00:00+00:00

[Eddie Galindo](https://www.linkedin.com/in/eruva/) is an engineering lead at [Ascend](https://www.useascend.com/) and [Kagen Hearn](https://www.linkedin.com/in/kagen-hearn-228b96130) is a senior software engineer there, working on a Rails app that helps insurance agencies move and reconcile money.

Robby, Eddie, and Kagen get into why Ascend still runs one Rails monolith five years in, what needed attention when much larger customers started arriving, and how the team went about finding the real limits of their data ingestion pipeline. They also get into feature flags versus database configuration, and where AI tooling fits in when the software you ship moves money.

**Links:**

[Listen to this episode](https://podcast.rubyonrails.org/2462975/episodes/19737744-eddie-galindo-kagen-hearn-rate-limiting-for-your-customers) (1h 24m) or [subscribe to On Rails](https://podcast.rubyonrails.org) in your podcast player.