model-runtime engineering Jobs

We are seeking a Staff/Senior Software Engineer to join our Agent Engineering team, focusing on the Helios project. This role involves building and strengthening the foundations of our agent runtime, enabling the creation of new agent-driven products. You will develop systems that allow agents to manage long-running work from assignment to completion, ensuring agent activity is visible, steerable, and connected to relevant projects, people, evidence, deadlines, and deliverables. Additionally, you will construct the framework for agents to safely interact with internal systems and external services, and connect agents to our retrieval and knowledge systems to ground their reasoning, memory, citations, and generated artifacts in authoritative evidence. A key part of this role is improving the evaluation and release discipline for agent behavior, traces, and simulations to enhance quality while controlling latency, cost, and risk.