Senior Software Engineer — Infra Agent Systems UK

Together AI is hiring a Senior Software Engineer to build production AI agents that diagnose and help operate its GPU fleet. The role also builds the distributed services, knowledge graphs, retrieval systems, and tooling that power those agents, and owns systems through production operations.

Responsibilities:

• Design and build production AI agent systems that diagnose, investigate, and remediate infrastructure issues across one of the world’s largest GPU fleets
• Build the distributed services, orchestration framework, knowledge graph, and retrieval systems that power infrastructure agents
• Develop fleet intelligence systems that combine telemetry, infrastructure state, operational knowledge, and historical incidents to help agents make better decisions
• Integrate with observability, incident management, ticketing, fleet inventory, source control, chat, and internal infrastructure systems through well-designed APIs
• Own services end to end, including architecture, implementation, testing, deployment, observability, and production operations
• Improve agent performance through evaluations, retrieval improvements, better tools, and production feedback loops
• Turn what agents learn in production into reliable, reviewed software and automation