Staff/Senior Software Engineer, Agent Engineering (Helios)

Expected areas of expertise: • Production orchestration for stateful, long-running, and multi-agent workflows. • Tool and action infrastructure with strong contracts, permissions, and approval boundaries. • Retrieval, context engineering, evidence management, and persistent agent memory. • Model-runtime engineering across providers, latency profiles, and deployment environments. • Evaluation, tracing, security, and operational control of nondeterministic systems. KEY RESPONSIBILITIES • Own Proxi’s agent runtime and strengthen foundations for building new agent-driven products. • Build the systems that allow agents to own long-running work from assignment through completion. Agent activity should remain visible, steerable, and connected to the relevant project, people, evidence, deadlines, and deliverables in Action Rail. • Build the tool and action framework agents use to interact with internal systems and external services safely. • Connect agents to Proxi’s retrieval and knowledge systems so reasoning, memory, citations, and generated artifacts remain grounded in authoritative evidence. • Improve the evaluation and release discipline for agent behavior, traces and simulations to improve quality while controlling latency, cost, and risk. NICE TO HAVE • Experience deploying agent systems in government, defense, legal, healthcare, or other regulated environments. • Familiarity with policy and legal research where temporal accuracy, provenance, and citation precision are essential. • Experience operating self-hosted or multi-provider inference in restricted environments. • Experience building agents that create durable artifacts or perform permissioned actions on a user’s behalf.