Software Development Engineer II / III (SDE 2 / SDE 3) - Backend (Greater Noida)

- You will design, build, and scale robust backend services, AI-enabled systems, and asynchronous data pipelines that power our digital learning platform. - You will own features end to end, integrating modern intelligence workflows into stable APIs, optimising database performance and caching, and delivering fast, highly available services that handle peak loads smoothly. Responsibilities - Design, build, and maintain high-performance RESTful APIs and real-time WebSocket communication pipelines. - Architect multi-tenant SaaS backend services with strict tenant data isolation, role-based access control, and robust connection pooling. - Design relational schemas, write optimized queries, and perform proactive indexing and query tuning as datasets scale. - Integrate production artificial intelligence features, including streaming response endpoints, model gateway routing, and prompt evaluation tooling. - Define and maintain stable, versioned API contracts and asynchronous data models. - Write comprehensive unit, integration, and load tests to ensure platform security, stability, and zero-downtime releases. - Implement distributed caching, queue workers, and background job processing to sustain low latency under peak loads. Key Skills - 4 to 6 years of core experience engineering backend services and distributed systems - Strong proficiency in TypeScript and Nodejs, or Python - Hands-on expertise in REST API architecture, HTTP/2 standards, and bidirectional WebSocket implementations - Proven experience with multi-tenant SaaS architectures, data isolation, and tenant-level security - Deep knowledge of PostgreSQL or another relational database, including schema design, indexing strategies, and query performance tuning - Practical experience implementing Redis for caching, pub/sub, session management, or message queueing - Solid understanding of asynchronous state handling, API error recovery, and rate-limiting patterns - Rigorous engineering practices using Git, automated pull request workflows, and cooperative code reviews Disclaimer: This job posting and location has been aggregated from external source. Role details, content, and availability are subject to change. Applicants are advised to confirm the latest information directly on the company website before applying. .