- Backend LLD
Authentication Service Low-Level Design for Secure User Management
Comprehensive LLD for building a scalable, secure authentication service with token management, session handling, and multi-factor authentication support.
- Backend LLD
Session Management Service Design and Implementation
Comprehensive low-level design for a scalable session management service with token-based authentication, storage strategies, and security considerations.
- Backend LLD
API Gateway Low-Level Design for Scalable Microservices Architecture
Comprehensive LLD document covering API Gateway implementation with load balancing, authentication, rate limiting, and distributed tracing for microservices ecosystems.
- Backend LLD
GraphQL API Design Patterns and Implementation Strategies
Comprehensive low-level design guide for building scalable GraphQL APIs with type safety, performance optimization, and real-time capabilities.
- Backend LLD
RESTful CRUD API Design Patterns and Implementation Guidelines
Comprehensive low-level design document covering RESTful CRUD API architecture, resource modeling, and production-ready implementation strategies for scalable backend systems.
- Backend LLD
Pastebin Service Low-Level Design - Scalable Text Storage System
Comprehensive backend architecture for a scalable pastebin service with key-value storage, expiration handling, and distributed caching strategies.
- Backend LLD
URL Shortener Service Design - Scalable Backend Architecture
Comprehensive low-level design for a scalable URL shortening service with distributed ID generation, caching strategies, and database optimization.
Backend Low-Level Design (LLD) — Study Guide
A curated, structured catalog of backend low-level / object-oriented design questions for study and practice. Use it to plan study sessions, track coverage, and rehearse with a repeatable approach.