Backend & AI Developer at Affy Cloud Solutions

Built production-ready Django REST APIs with JWT authentication, token blacklisting, and role-based access control for 5+ modules. Architected and deployed RAG pipelines using LangChain with vector databases (FAISS, ChromaDB) and multi-provider LLM APIs (OpenAI, Groq) for real-time document Q&A and knowledge retrieval. Designed MySQL schemas and optimized queries to reduce backend overhead and improve data integrity. Integrated Canva REST API v1 with OAuth2 (authorization code flow), implementing token refresh and local DB synchronization for design and asset management. Collaborated with teams to deliver end-to-end AI application modules within agile sprints.