Senior Frontend Product Engineer

Over 8,000 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.

We’re looking for thoughtful, experienced frontend product engineers who love designing delightful user interfaces and care deeply about the details. You’ll build the tools that empower our customers to create better experiences for theirs.

What We Value

Ownership - You own problems end to end. You move fast, act like an owner, and thrive in ambiguity. You've led complex projects before—whether officially or not—and you're ready to do it again.

Engineers with product taste - You think like a user, not just an engineer. Y...