Over 9,000 companies — from scrappy startups to global brands — use our platform to send billions of emails, push notifications, in-app messages, and SMS every day. Customer.io powers automated communication that people actually want to receive.
We help teams send smarter, more relevant messages using real-time behavioral data. Under the hood: Go, React, Ember and AI help us ship fast and scale with confidence.
Ownership at company scale
You take on the problems nobody has claimed yet — the ones that span squads, have no obvious owner, and would quietly cost us a year if left alone. You either solve them or get leadership aligned to.
Engineers with product taste
You think like a user, not just an engineer. You connect architectural decisions to what customers actually experience, and you can explain that connection to people who don’t write Go.
A healthy skepticism for “the way things are done”
You retire practices that have outlived their usefulness, including ones you helped build. Best practices matter — but never more than forward motion.
Your best quarter isn’t measured by what you shipped. It’s measured by what the department can now do that it couldn’t before.