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Senior Software Engineer, Backend

Customer.io · Posted August 11, 2026

Americas Remote Full-Time Backend $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 Paul, VP of Engineering at Customer.io . We’re looking for experienced backend engineers who care deeply about reliability, performance, and scalability. You’ll design, build, and evolve the systems that power communication at massive scale - while helping us push the boundaries of what great engineering can look like. 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…

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