Udit Tiwari

I'm a Computer Science graduate (B.Tech, 2026) interested in Software Engineering, Backend Development, and AI/ML Engineering. I enjoy building practical applications that combine software engineering fundamentals with emerging AI technologies.

My technical experience includes working with Python, Java, C++, JavaScript, SQL, FastAPI, Spring Boot, REST APIs, and database-driven applications.

Some of the projects I've worked on include:

• Adaptive RAG – Agentic AI Chatbot: Built a Python-based AI chatbot using FastAPI, LangGraph, OpenAI, and Qdrant, implementing query routing, semantic retrieval, query rewriting, and multi-step agentic workflows.

• Your Own AI – C++ Vector Search Engine: Implemented HNSW, KD-Tree, and brute-force vector search algorithms, integrating Ollama embeddings and local LLM inference for semantic retrieval and RAG-based question answering.

• UPI Offline Mesh – Secure Payment Settlement: Developed a Spring Boot backend simulating offline payment settlement, implementing RSA-OAEP, AES-256-GCM encryption, idempotent transaction processing, replay protection, and concurrency-safe settlement.

My core areas of interest include:
• Backend Engineering and Distributed Systems
• Python Development and REST API Design
• Generative AI, LLMs, and Agentic Workflows
• Retrieval-Augmented Generation and Vector Search
• Secure Payment Systems and Database Engineering

I'm continuously strengthening my problem-solving, system design, debugging, and software development skills.

I'm open to Software Engineer, Backend Developer, Python Developer, and AI/ML Engineering opportunities.

GitHub: https://github.com/udit3103
Email: udittiwari3103@gmail.com