Sai Pavan Annamraju

Led end-to-end delivery of AI projects from POC to production. Designed RAG-based chatbot using React, TypeScript, Flask, and Azure. Built scalable UIs with Redux Toolkit and responsive design. Developed REST APIs with JWT auth and CosmosDB. Integrated GPT-4, embeddings, Azure AI Search, and Weaviate. Enabled voice features via Azure Speech (STT/TTS). Cut infra costs by 80% by migrating from Azure AI Search to Weaviate.

Built robust ETL pipelines moving data from Athena to S3, supporting business analytics with clean, structured datasets. Created automated statistical reports for postmen efficiency evaluation, providing actionable insights to reporting teams Machine Learning Systems: Developed Delivery Time Window Prediction System using regression and clustering on datasets with 10M+ records Time Series Forecasting: Built sophisticated models using Facebook Prophet to forecast parcel volumes and resource requirements