Senior Fullstack Engineer

June 21

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Customer.io

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SaaS • Marketing

Customer. io is a customer engagement platform that helps businesses create personalized journeys across multiple channels, such as email, SMS, and in-app messaging, by leveraging first-party data. The platform offers solutions for crafting and automating messages with high flexibility and customization. It includes features such as data pipelines for managing customer data, visual workflow builders for automation, and tools for analytics and A/B testing to optimize messaging campaigns. Designed to scale with businesses of all sizes, Customer. io integrates with existing tools and provides a secure, compliant environment with high uptime, making it a trusted choice for over 7,400 brands globally.

51 - 200 employees

Founded 2012

☁️ SaaS

💰 Series A on 2022-03

📋 Description

• Build fullstack features in Go, React, and Ember that power key customer workflows • Collaborate with others to turn ideas into shipped customer value • Share knowledge and raise the bar through sharing your progress publicly with short videos, thoughtful writing, and mentorship • Help evolve our systems to scale with more customers, messages, and use cases • Leverage AI tools to prototype, move faster, and make better decisions

🎯 Requirements

• 7+ years of experience building and scaling backend services and product-facing features • Fluency in TypeScript, React (or similar), and a statically typed backend language like Go • A strong care for frontend polish, backend performance, and the overall customer experience • Proficiency with APIs, relational databases, and writing testable, performant code • A bias for action over perfection, and pride in owning technical decisions

🏖️ Benefits

• Starting salary for this role is $150,000 - $200,000 USD (or equivalent in local currency) depending on experience and subject to market rate adjustment. • 100% coverage of medical, dental, vision, mental health, and supplemental insurance premiums for you and your family. • 16 weeks paid parental leave. • Unlimited PTO. • Stipends for remote work and wellness. • A professional development budget.