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Senior Fullstack SDK Engineer

Customer.io · Posted July 21, 2026

Americas Remote Full-Time Fullstack $150,000 - $200,000 USD· High
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Free · applies on Customer.io

This role is fully remote but the employer can only hire in Americas Remote. Make sure you're eligible to work there before applying. See work-from-anywhere jobs →

About this role

Hi, I’m Josh, Engineering Manager at Customer.io . We’re looking for a curious, AI-forward Fullstack SDK Engineer to join our SDK team and help us build the tools that developers rely on to integrate with Customer.io . About Customer.io 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 …

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