Rohit K.

I’m a Senior Software Engineer with 10+ years of hands-on experience in Python and backend architecture — currently focused on building intelligent, AI-powered document and data processing platforms. I specialize in FastAPI-based backend development, LLM integration, and RAG pipelines, working with tools like LangChain, LlamaIndex, Milvus, Azure AI Document Intelligence, and OpenAI. Whether you're building a SaaS that transforms documents into vector-searchable knowledge, or orchestrating multi-stage workflows with Airflow or Celery, I bring modular, scalable, and production-grade engineering expertise to the table. My Key Skills Include: - FastAPI Architecture & Backend Design Modular routers, middleware, async endpoints, Pydantic models JWT/Token Auth, SSO, LDAP, RBAC File upload/download (PDFs, Excel, Word), multipart/form support Secure, testable, production-grade REST APIs - Document Parsing & OCR Pipelines Integrated LlamaParse, Azure Document Intelligence, PyMuPDF OCR ( PaddleOCR, Tesseract ) - LLM & Vector Search (RAG) Embeddings using OpenAI Pinecone, PG vector, Milvus for vector storage - RAG workflows with LangChain, LangGraph Smart caching, fallback LLM logic - Database Integration & SQL Generation PostgreSQL, MySQL, MSSQL Schema introspection & SQL generation via LLMs Dynamic endpoints to serve natural language → SQL - Web Scraping APIs Scrapy - Workflow Orchestration & DevOps Airflow 2.x/3.0.1 (Dockerized), Celery + RabbitMQ Docker, GitHub Actions, Azure DevOps CI/CD pipelines