Customer.io

Senior Software Engineer - Backend Platform

Americas Remote · Senior

Sponsorship not specified$150k-$200kDetected 11 days ago

ReactDistributed SystemsPostgreSQLMySQLDynamoDBAWSGCPData EngineeringCommunicationMentoring

About the role

Hi, I'm Manu, Engineering Manager at Customer.io.
This isn't just maintenance work - you'll shape the architecture of systems that need to be both highly available and constantly evolving.
If you're someone who gets energized by the intersection of scale, reliability, and developer experience - and wants ownership over infrastructure that truly matters - we'd love to talk.

Design and evolve distributed systems in Go to handle billions of daily events and messages and store and index petabytes of data
Lead architectural decisions around performance, reliability, and real-time event processing
Work across teams to uncover bottlenecks and system issues, and lead initiatives to resolve them for a smoother customer experience
Significant experience (typically 10+ years) building scalable, distributed systems in Go (or similar statically typed languages)
No gotchas, no trick questions - just a clear, human process designed to help both of us make an informed decision.
System Design Interview (60 mins) - A collaborative system design conversation focused on scaling challenges.
We strive to build an inclusive team culture, implement bias-free hiring practices, and develop community partnerships to expand our global impact.
If you're excited by what you read and want to build software that makes communication better for everyone-apply now.

Deep experience with databases - relational (MySQL, Postgres) and non-relational (DynamoDB, BigTable) - and how to make them fast
Comfort working in cloud-native environments (AWS, GCP)
Familiarity with APIs, observability, and operating production systems

Deep experience with distributed systems and large-scale backend architecture
Strong instincts around reliability, observability, and fault tolerance
Comfort reasoning about performance, capacity, and trade-offs at scale
Experience with event-driven systems, message queues, or data pipelines is a plus
A collaborative mindset - you raise the team around you

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.

Our inclusive benefits package supports your well-being and growth, including 100% coverage of medical, dental, vision, mental health, and supplemental insurance premiums for you and your family.
See full benefits here →
We commit to using our influence to increase inclusion and equity within the tech industry.
We also offer 16 weeks paid parental leave, unlimited PTO, stipends for remote work and wellness, a professional development budget, and more.

What we're looking for
We're looking for experienced backend engineers who want to build and own the infrastructure that powers one of the most data-intensive platforms in marketing automation - systems that process millions of events per second, orchestrate complex workflows at scale, and keep everything running reliably for thousands of customers worldwide.

This listing is sourced directly from Customer.io's careers page and normalized into a canonical job model.