Shokh (Mufazzalshokh) Ulashev

Architected and delivered a full-stack e-commerce platform integrated with an OpenAI GPT-based chatbot for smart customer assistance. Implemented secure payment flow, dynamic product management, user behavior tracking, and session-based cart logic. Applied prompt engineering and error-handling logic to deliver consistent chatbot responses across multiple intents. Deployed the full system locally using Docker and prepared CI-ready architecture for production deployment. Independently built a scalable property listing engine with advanced filtering, geo-tagged search, and user dashboards. Engineered a robust web scraping solution in Python to extract property data from multiple portals, normalizing and storing in a structured PostgreSQL schema. Designed REST APIs and managed deployment using Docker, Nginx, and Gunicorn on Ubuntu for high-availability access. Consulted clients on feature planning, user journey mapping, and SEO-friendly backend structure.

Built a mini Retrieval-Augmented Generation (RAG) system with FastAPI for question-answering over local documents. Implemented hybrid retrieval, Server-Sent Events (SSE) streaming, and budget guardrails for controlled LLM usage. Integrated OpenAI API, prompt engineering, and citation mechanisms for trustworthy answers. Added retry logic, exponential backoff, and in-memory rate limiting to handle API and user constraints. Focused on production-quality design with clean architecture, observability, and test coverage.

Built a mini Retrieval-Augmented Generation system with FastAPI for Q&A over local documents. Implemented hybrid retrieval, Server-Sent Events streaming, and budget guardrails for controlled LLM usage. Integrated OpenAI API, prompting engineering, and citation mechanism for trustworthy answers. Added retry logic, exponential backoff, and in-memory rate limiting to handle API and user constraints. Focused on production-quality design with clean architecture, observability, and test coverage. Included automated testing and CI/CD integration for deployment to cloud environments.