We are looking for a highly technical Senior Backend Engineer to design, build, and scale robust, distributed, multi-tenant backend systems in high-performance production environments.This role is focused on real backend engineering, system architecture, and full ownership across the development lifecycle — from technical design to production deployment.You will work closely with Product, AI, and Platform teams to build scalable and resilient backend infrastructure capable of supporting real customers and large-scale event-driven systems.What You'll Build- Production-grade scalable REST APIs- Multi-tenant architectures with secure data isolation- High-availability distributed systems- Event-driven and webhook-based pipelines- Backend integrations with AI/ML services- Usage-based billing and credit systems- Scalable backend infrastructure on AWSKey Responsibilities- Design and implement scalable backend services using Node.Js and TypeScript- Build REST APIs consumed by external custo...