Job descriptionLead Backend Engineer | Node.js, TypeScript, Microservices, APIs, Event-Driven Architecture, AI | London | Up to 130k salary + equity This is an opportunity to join a fast-scaling AI startup building an AI operating system for property management, automating up to 80-90% of repetitive workflows across compliance, maintenance, and tenant communication. With strong early traction and growing demand, they are building toward becoming a category-defining platform in a multi-billion-pound industry. As a Lead Backend Engineer, you'll take ownership of the backend architecture, APIs, and microservices that power an AI assistant operating in real-time production environments. You'll design and build scalable systems using Node.js and TypeScript, working across REST APIs, event-driven architecture, data pipelines, and distributed systems, ensuring performance, reliability, and scalability as the platform grows. This is a hands-on leadership role where you'll set technical direction, mentor / manage engineers, and contribute to engineering culture, while collaborating closely with AI engineers, data teams, and product stakeholders to translate complex workflows into robust, production-grade systems. You'll be responsible for building and maintaining scalable backend services, APIs, and integrations, designing microservices and event-driven architectures, implementing CI/CD, observability, and monitoring, and ens...