# Senior Software Engineer, Backend

**Company:** [Customer.io](https://hotfix.jobs/companies/customerio)
**Location:** Remote
**Role:** Backend Engineering
**Salary:** $150k – $200k/yr
**Experience:** 7+ years
**Skills:** Go, AWS, GCP, MySQL, Distributed Systems, Relational Databases, Observability, Cloud-Native Architecture, System Design, AI Agents
**Posted:** 2026-08-11

> Build and operate scalable distributed backend systems in Go that power high-volume customer messaging. The role requires 7+ years of experience, cloud-native expertise, relational database knowledge, and production observability experience.

## Job Description

## Responsibilities
- Design and build distributed systems in Go that help customers send timely, relevant messages at scale.
- Collaborate across teams to debug issues and deliver reliable solutions.
- Own problems end to end, from architecture and schema design through testing, deployment, and monitoring.
- Share knowledge and raise the engineering bar through short videos, thoughtful writing, and mentorship.
- Use AI agents to make multi-file changes by scoping the work, writing prompts, and verifying output.

## Requirements
- 7+ years of experience building scalable, distributed systems in Go or similar statically typed languages.
- Experience working in cloud-native environments, including AWS or Google Cloud.
- Familiarity with relational databases, particularly MySQL, and performance tradeoffs.
- Experience with observability tooling and operating production systems.
- Bias for action, sound technical judgment, and ownership of technical decisions.

## Compensation & Benefits
- Starting salary of **$150,000–$200,000 USD**, or equivalent in local currency, depending on experience and subject to market rate adjustment.
- Medical, dental, vision, mental health, and supplemental insurance premiums covered at 100% for employees and families.
- 16 weeks of paid parental leave.
- Unlimited paid time off.
- Remote work and wellness stipends.
- Professional development budget.

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