Founding Product Engineer

AgentMail • San Francisco, CA

1d • Onsite

About The Position

AgentMail is building the communication infrastructure for AI agents. Today, AI agents can write code, browse the internet, and take actions on behalf of people—but they still struggle to communicate and operate independently across the services humans use every day. AgentMail gives agents their own email identities and infrastructure to send, receive, and act on email programmatically. We’ve processed hundreds of millions of emails and serve developers building some of the most ambitious agentic products. We’re looking for a Founding Product Engineer to help define what using AgentMail actually feels like.

Requirements

• An engineer who thinks about the why behind what they’re building.
• An exceptional frontend engineer with strong product and design instincts.
• Strong engineering fundamentals and are comfortable going beyond the frontend—working with APIs, backend systems, databases, queues, and distributed systems when necessary.
• Can take a vague problem like “developers can’t figure out why their agent didn’t respond to this email” and turn it into a product without waiting for a detailed spec.
• Enjoy talking to customers and can separate what someone asks for from the underlying problem they’re actually trying to solve.
• Can contextualize technical decisions in terms of customer and business impact.
• Care about API design and developer experience, not just UI.
• Have strong opinions about products but are willing to change your mind when the data or customer evidence says otherwise.
• Comfortable moving quickly, shipping imperfect things, learning from usage, and iterating.
• Extremely high agency. When something is broken or missing, your instinct is to fix it.
• Have built things people love and can independently go from customer problem → idea → product → shipped software → learning.

Responsibilities

• Build products end-to-end. Work across polished frontend experiences, APIs, backend services, data models, and infrastructure when the product calls for it.
• Talk directly to customers. Interview developers, watch them use AgentMail, dig through support conversations and usage data, and understand where they’re getting stuck.
• Turn customer problems into products. Figure out what should be built—not just how to build it—and develop conviction about which problems are actually worth solving.
• Build AgentMail Studio. Help create the interface developers use to understand, debug, and interact with their agents’ email—from inspecting messages and threads to testing workflows and understanding what happened under the hood.
• Shape our developer experience. Improve everything between a developer signing up and getting something useful into production: onboarding, SDKs, APIs, debugging tools, docs, and the console.
• Prototype quickly. Turn an idea from a customer conversation into something they can use days later.
• Sweat the details. We care deeply about how our products look, feel, and behave. You’ll have significant influence over the design and interaction patterns of AgentMail.
• Help define the product engineering culture. You’ll be one of the earliest engineers explicitly focused on product and will shape how we build products as the team grows.

What This Job Offers

• Job Type: Full-time
• Career Level: Entry Level
• Education Level: No Education Listed