Full-time Posted May 31, 2026
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Job Description

Customer.io is seeking a Senior Software Engineer to take ownership of the email channel, from infrastructure to product surfaces. This role involves building and evolving frontend experiences for email campaigns, designing backend systems for high-volume sending, and ensuring deliverability. Applicants should have over 7 years of experience with scalable systems, proficiency in Go and React, and an understanding of email authentication. Customer.io offers a competitive salary of $150,000 – $200,000 USD and a comprehensive benefits package including unlimited PTO and 16 weeks of paid parental leave.
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