Customer.io careers

Customer.io delivers more impact from every message–unifying data, messaging, and AI into one platform so every customer interaction gets smarter over time.

Customer.io helps teams build personalized campaigns across email, SMS, push, in-app, and webhooks, using their own first-party data to reach the right people with the right message at the right moment. AI is built into the platform to remove the grunt work and sharpen results over time–so marketers can focus on strategy, not setup.

More than 9,000 brands, including Notion, Les Mills, and Angi, trust Customer.io to power their messaging. Founded in 2012 and fully remote, Customer.io was named one of the fastest-growing private companies on the 2025 Inc. 5000 list and recognized by G2 as a Best Software award winner in Marketing and Digital Advertising Products.