About Customer. ioOver 7,500 companies — from scrappy startups to global brands — use our platform to send billions of emails, push notifications, in-app messages, and SMS every day.

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.

Hi, I’m Paul, VP of Engineering at Customer. io. We’re looking for curious, driven Fullstack (Product) Engineers who want to own big things and delight our customers.