# Senior Software Engineer - Backend

**Company:** [HappyRobot](https://hotfix.jobs/companies/happyrobot)
**Location:** San Francisco, CA
**Role:** Backend Engineering
**Salary:** $220k – $250k/yr
**Experience:** 5+ years
**Skills:** Go, System Design, APIs, Data Modeling, Service Reliability, Backend Engineering, Real-Time Infrastructure, Observability
**Posted:** 2025-12-20

> Builds and operates scalable backend services for AI-native operating system, focusing on real-time infrastructure, system reliability, and production services. Requires 5+ years experience, strong Go skills, and system design expertise.

## Job Description

## What We’re Looking For
- 5+ years of professional experience
- Strong backend engineering experience, with a focus on building scalable systems
- Experience with **Go** or a strong willingness to work in Go in production
- Solid understanding of system design, APIs, data modeling, and service reliability
- Product-oriented mindset and comfort making tradeoffs in a fast-moving environment
- Experience operating and maintaining production services

## What You’ll Do
- Design, build, and operate backend services that support our core product
- Improve system reliability, performance, and observability
- Work on real-time infrastructure that powers voice-based AI workflows
- Collaborate closely with frontend engineers, product, and founders
- Ship to production frequently and iterate based on customer needs and system behavior

## Why join us?
- Opportunity to work at a **high-growth AI startup**, backed by top investors.
- **Rapidly growing and backed by top investors including a16z, Y Combinator, and Base10.**
- **Ownership & Autonomy** - Take full ownership of projects and ship fast.
- **Top-Tier Compensation** - Competitive **salary + equity** in a high-growth startup.
- **Comprehensive Benefits** - **Healthcare, dental, vision** coverage.
- **Work With the Best** - Join a world-class team of engineers and builders.

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**Apply:** https://hotfix.jobs/jobs/88554a80-a5e6-40bd-b62d-fdf9f148b8f8
**Canonical:** https://hotfix.jobs/jobs/88554a80-a5e6-40bd-b62d-fdf9f148b8f8