Senior Fullstack Product Engineer

Details

Customer.io powers automated communication used by over 7,500 companies to send emails, push notifications, in-app messages, and SMS. We help teams send smarter, more relevant messages using real-time behavioral data. Under the hood we use Go, React, Ember, TypeScript, and AI to ship fast and scale with confidence.

This role is a Senior Fullstack Product Engineer working remotely within the Americas. You will design, build, and ship core product experiences that customers rely on, owning features end-to-end and helping the team push boundaries on what great communication tools can do.

Responsibilities

• Build fullstack features using Go, React, and Ember that power key customer workflows
• Collaborate with product and engineering partners to turn ideas into shipped customer value
• Share knowledge and raise the bar via short videos, thoughtful writing, and mentorship
• Evolve 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 and React (or similar) and experience with a statically typed backend language such as Go
• Strong care for frontend polish, backend performance, and the overall customer experience
• Proficiency with APIs and relational databases
• Experience writing testable, performant code
• A bias for action and pride in owning technical decisions

Compensation & Benefits

• Starting salary: $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, professional development budget, and more

Our Process

• Application
• Recruiter call (30 mins)
• Behavioral interview (60 mins)
• Technical deep dive (60 mins)
• Take-home assignment and two assignment review calls (2 x 60 mins)
• Background check and employment verifications for final candidates

Values

We value ownership, product taste, and a healthy skepticism for the status quo. Customer.io is committed to inclusion and equity and uses bias-free hiring practices.

For questions about the role or hiring process, contact [email protected].