Founding Platform Engineer

About the Role We're building a platform (architect.new) that lets anyone create, deploy, and manage autonomous AI agents with custom skills, tool integrations, and production-ready UIs. You'll work across backend, frontend, and infrastructure — reporting to the Product Architect. What You'll Do Build and maintain the core agent orchestration engine, skill execution, and state management Develop the builder UI in Next.js for composing agents and workflows Implement real-time communication layers (WebSockets, SSE) for live agent interactions Own backend microservices in Python and Go Design and optimize MongoDB schemas for multi-tenant, high-throughput workloads Manage cloud infrastructure, deployments, and observability on AWS Required Experience Backend — Python & Go Building scalable microservices in Python (FastAPI) and Go WebSocket and SSE implementation; diagnosing socket-level issues MongoDB at scale — sharding, indexing, replica sets Authentication mechanisms — OAuth 2.0, JWT Pu...