AI Infrastructure Engineer

PlayerZero builds an AI platform that connects work across enterprise software teams. The AI Infrastructure Engineer builds and scales the infrastructure that enables agents to execute long-running work, access relevant context, communicate with people and other agents, and operate across sandboxed environments and machine fleets.

Responsibilities:

• Agentic infrastructure. Our agents don’t answer a question and disappear. They take on units of work that run for hours or days, change hands, and continue to drive work to completion. We build the runtime that creates continuity for that work: long-running sessions that survive failures, durable workflow state, lifecycle and cancellation, and workflows that track each piece of work to completion across every stage and every party involved
• Context architecture. Because work flows through our platform, we’re present when the connections between code, tickets, units of work, and past decisions are made. The context between these systems of record is necessary for the agent to do its work well, and the data models behind it shape everything an agent can know. We design how that context is represented and delivered: what gets precomputed ahead of time versus resolved on demand, and how the right slice reaches each agent at the right moment
• The communication layer. Real work doesn’t happen in isolation. Agents work alongside other agents (subagents, teammates, agents on customer machines, agents over MCP) and alongside people. We’re building the layer that connects them: messaging between agents within and across sessions, escalations that pull in the right person at the right time, and agents that can be interrupted when new information arrives
• Sandboxes and fleets. An organization’s work is spread across laptops, QA fleets, production hosts, and ephemeral scripts. We build our own sandbox infrastructure, environments that spin up instantly and run by the hundreds, plus a fleet layer that lets agents work on the machines where customer work already happens