Senior Fullstack Engineer

Summary

Join Customer.io, a company used by over 7,500 businesses, to build fullstack features using Go, React, and Ember. As a fullstack engineer, you will design, build, and ship core product experiences, collaborating with others to deliver customer value. You will share knowledge through videos and mentorship, and help scale systems to handle increased customers and messages. Leverage AI tools to improve efficiency and decision-making. This role requires 7+ years of experience in backend services and product features, fluency in TypeScript, React, and Go, and proficiency with APIs and databases. Customer.io offers competitive compensation, comprehensive benefits, and a supportive work environment.

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

Responsibilities

• 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

Benefits

• 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