Agentmail

Senior Engineer, Backend/Infra

San Francisco · Senior · Full-time

Sponsorship not specified$250k-$400kDetected 134 days ago

Distributed SystemsCloud PlatformsLLMsAgentic AICommunication

About the role

If you like owning things 0 -> 1, lets chat.
It isn't AI for your email, it's email for your AI.
This is a role for someone who likes systems work: APIs, distributed infrastructure, reliability, developer tooling.

Lead and manage a team of 4-6 engineers
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
Own projects end-to-end, from system design to production rollout
how to build something agents want.
AgentMail is building an API designed to give inboxes to AI agents and be the sole identity + communication provider.
Experience building for AI/LLM use cases

Has 3+ years of work experience as an engineer working on infrastructure at a tech company
You have a high bar for quality: At a startup, speed is the only advantage we have over big-tech companies.
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.
Experience with cloud infrastructure, distributed systems, or developer tools
Experience with messaging, email, auth, or protocol-heavy systems
Just like you have a Gmail, agent's will need an AgentMail.
Has architected software used in production by millions of users

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.

Full-time, on-site
we are seeing a surge in market demand as agents become real first-class citizens of the internet, and we are aggressively hiring in order to keep up.
We're coming up with solutions in a problem space where no one in
Be the frontline for feedback from our customers - we'll trust you to be our spokesperson
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.
We're looking for a founding engineer with strong backend and infra instincts to help build the primitives agents will use to communicate, authenticate, and operate in the real world.
Founded by a team of experts in their own respects(Quant, SWE, Private Equity), the team has top-tier talent from startups and big companies alike, with backgrounds from Optiver, NVIDIA, Amazon, Modern Treasury, KKR.

This listing is sourced directly from Agentmail's careers page and normalized into a canonical job model.