primitive

communication for agents

Product Engineer

$190K - $230K0.25% - 0.75%San Francisco, CA, US
Job type
Full-time
Role
Engineering, Backend
Experience
3+ years
Visa
US citizen/visa only
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Ethan Byrd
Ethan Byrd
CEO

About the role

About primitive.dev

primitive.dev is building the communication layer for the agent economy. As AI agents increasingly act on behalf of people and businesses, companies need infrastructure to identify them, understand what they need, and interact with them at scale.

We rebuilt email from the ground up for machine-to-machine communication, optimizing the entire stack for latency, throughput, reliability, and developer experience. On top of that infrastructure, we deploy and operate agents for our customers. They begin as a general interface to the business, then learn from incoming traffic and create specialized agents to handle recurring workflows.

What you’ll do

Own the product through which non-technical teams create and operate agents. We let someone define a business outcome, deploy an agent, and improve it without ever seeing the engineering underneath. This role owns that abstraction across product, design, frontend, and backend.

What you bring

  • You have built and shipped polished user-facing products end to end
  • You are an excellent frontend engineer and can work across the backend when needed
  • You can turn complicated systems and ambiguous customer needs into simple software

Nice to have

  • Experience making technical systems accessible to non-technical users
  • Experience with agents, workflow automation, or developer infrastructure
  • Former founder

Compensation

$190k-$230k base salary plus equity. World-class benefits.

Full-time and in person in San Francisco, relocation fully covered if needed.

About primitive

Building the communication infrastructure needed for fully autonomous agents.

primitive
Founded:2026
Batch:P26
Team Size:4
Status:
Active
Location:San Francisco
Founders
Ethan Byrd
Ethan Byrd
CEO