← All roles

Senior Software Engineer - Backend Platform

Customer.io· Engineering
Apply on company site
Remote$150k - $200kFull-timePosted 3mo ago

About the role

Backend-focused senior role at Customer.io on the Platform team, building fault-tolerant, scalable distributed systems and foundational infrastructure that powers a data-intensive marketing automation platform.

Responsibilities

  • 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
  • Improve service-to-service communication through better APIs, messaging systems, and event-driven patterns
  • Work across teams to uncover bottlenecks and system issues, and lead initiatives to resolve them for a smoother customer experience
  • Tackle high-throughput challenges across data pipelines, queues, and scheduling infrastructure
  • Able to debug production systems at scale using effective instrumentation, and resolve issues quickly and confidently
  • Participate in an on-call rotation as required, supporting the reliability of the systems you build
  • Share knowledge and raise the bar through sharing your progress publicly with short videos, thoughtful writing, and mentorship
  • Leverage AI tools to prototype, move faster, and make better decisions

Qualifications

  • Significant experience (typically 10+ years) building scalable, distributed systems in Go (or similar statically typed languages)
  • 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
  • A bias for action over perfection, and pride in owning technical decisions

Skills

Required:Distributed systems design and architectureGoDatabases - relational and non-relationalCloud platforms

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
  • professional development budget
  • equity grant in the form of stock options
Last updated Oct 18, 2026. Interested? Apply on the company site.

About Customer.io

Customer.io Platform: Automation, Data, Content Creation

The customer engagement platform for personalized customer journeys across all channels, fueled by first-party data.

AutomationContent CreationCustomer JourneysCustomer engagementDataFirst-party dataPlatformbrex-fastest-growing-2025
Company profileWebsite

More open roles at Customer.io