# Founding Engineer

**Company:** [AgentMail](https://hotfix.jobs/companies/agentmail)
**Location:** San Francisco, CA
**Role:** Backend Engineering
**Salary:** $150k – $250k/yr
**Skills:** APIs, Distributed Systems, Cloud Infrastructure, Email Protocols, Authentication, Developer Tools, Low-Latency Systems, Ai/Llm, Infrastructure, Production Software
**Posted:** 2026-03-09

> Founding engineer builds APIs, distributed infrastructure, and low-latency systems for AI agent email inboxes and identity. Owns end-to-end projects bridging AI with email primitives at a hypergrowth startup.

## Job Description

## What you'll do

- Design APIs and abstractions that are intuitive for both humans and AI Agents
- Build high-performant, low-latency systems with the idea that agents are the end-users in mind
- Get your hands dirty by touching our core infrastructure that processes hundreds of thousands of emails per day
- Think creatively about being the bridge between cutting edge AI capabilities with something as primitive as email
- Own projects end-to-end, from system design to production rollout
- Write clear, maintainable code and strong technical documentation
- Be the frontline for feedback from our customers - we’ll trust you to be our spokesperson

## What we’re looking for

- You want to solve problems end-to-end: every engineer owns a part of the product and needs to make decisions across the frontend, infrastructure, backend, and UX
- You have a high bar for quality: At a startup, speed is the only advantage we have over big-tech companies. But even more important is to care about your output and obsess about details
- You are a clear thinker and communicator: We have daily standups and weekly syncs in which we expect you to communicate tradeoffs, problems, and blockers directly
- You are highly technical: preferred you have prior experience shipping production software by real users as a software engineer at a tech company or startup. But hustlers are always appreciated

**Bonus points**
- Experience with cloud infrastructure, distributed systems, or developer tools
- Experience with messaging, email, auth, or protocol-heavy systems
- Experience building for AI/LLM use cases

## Compensation

- $150k - $250k base
- 0.5% - 1.5% equity
- Medical, dental, and vision insurance
- All employees get Equinox memberships
- Breakfast, lunch, and dinner (Free Doordash)

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**Apply:** https://hotfix.jobs/jobs/4081c2f3-faa4-453b-8452-739ce7b2e05a
**Canonical:** https://hotfix.jobs/jobs/4081c2f3-faa4-453b-8452-739ce7b2e05a