Multi-Tenant SaaS Backend
Built a multi-tenant backend with strict data isolation across organizations, JWT authentication, RBAC for Owner/Admin/Member roles, scalable onboarding workflow, and Docker containerization. Eliminated cross-tenant access, secured all protected endpoints, reduced manual user management effort by 60%, and improved deployment consistency and setup time by 70%.
Django Social Media Web App
Developed REST APIs for posts, likes, comments, and following, handling 1000+ user interactions. Optimized database queries with select_related and prefetch_related, reducing query load by 40%, and implemented pagination and validation.
Expense Tracker Backend
Built a secure expense tracking API with ownership-based access and PostgreSQL financial analytics. Applied aggregations, caching, and rate limiting, reducing computation time by 50% and improving API response time by 30%.
Multi-Vendor Marketplace
Developed a scalable e-commerce backend supporting vendor onboarding, products, carts, and orders. Eliminated N+1 query issues through ORM optimization, improving performance by 35%, and implemented RBAC for vendors, buyers, and admins.