Hiring: Staff/Senior Software Engineer, Agent Engineering Company: Helios Location: New York, NY Job Posted Time: 2026-09-13 13:11:58 Employment Type: Full-time / On-site Target Skills & Keywords : Datadog, LLM, Security Clearance About the job Required Skills: •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. Qualifications: •Operational familiarity with policy and legal research where temporal accuracy, provenance, and citation precision are essential. •This is a full-time, in-person role based in our SoHo office in New York City. Team members are expected to work from the office five days per week when they are not deployed with customers. •Certain customer engagements may require background checks, security reviews, access approvals, or eligibility for a U.S. government security clearance. Some projects may be subject to U.S. citizenship or other customer-specific access requirements. •We're not looking for passengers; we want driven innovators with a hunger to build from the ground up - obsessed with pushing the boundaries of natural language understanding, document processing, and personalized relevance. •Own outcomes, not just assigned tasks. Identify what needs to happen and drive it through completion. •Move quickly without lowering the standard. Speed and rigor are complementary. •Stay close to the mission and the user. The best decisions begin with the real problem. •Work across boundaries. Everyone contributes beyond the narrow limits of a job title. •Communicate directly. We value clear thinking, honest feedback, and low-ego collaboration. Compensation: •$185,000 - $285,000 / year Interested candidates, please apply directly through the job posting on company's career page or try via AI auto apply on this platform. Don't miss this opportunity to join a forward-thinking team!