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Senior Software Engineer - Backend Platform

Customer.io

Remote · Americas$12,500–16,667 gross/mofull-timeCustomer.io Careers

Hi, I'm Manu, Engineering Manager at Customer.io. 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.

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

Languages

    Work format
    Remote
    Seniority
    Senior
    Posted
    10 Jul 2026
    Last verified
    In the last 5 days

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