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Shashank17singh/README.md
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High-Performance Systems, Applied AI, & Scalable Backend Infrastructure
Final-Year Computer Science (AI) Student

Codolio LinkedIn Portfolio Gmail

Technical Expertise

Category Skills
Languages Python, C++, TypeScript, SQL
AI & Machine Learning PyTorch, LangChain, Hugging Face, Qdrant, ChromaDB, Scikit-learn, XGBoost
Systems & Backend C++17, Multithreading, FastAPI, Flask, REST APIs, PostgreSQL, Supabase
Architecture & Security Distributed Systems, Microservices, TCP/UDP/TLS, Cryptography (RSA/AES)
Cloud & DevOps Docker, AWS, CI/CD, GitHub Actions, Nginx

Featured Engineering Projects

DPI Engine

Built a C++17 Deep Packet Inspection engine to reconstruct TCP/UDP data streams. Designed a multi-threaded load-balancer and fast-path architecture that uses consistent hashing to keep each flow on one thread. Created efficient data handling pipelines to classify traffic via TLS SNI and HTTP Host inspection. View Output

Your-Own-AI (VectorDB)

Built a modular C++ vector database using CMake, with KD-Tree and HNSW indexes. Created REST APIs for a frontend dashboard. Automated the Ollama cloud GPU environment setup using Python scripts to support the local RAG pipeline and PCA frontend. View Architecture

UPI-Mesh

Built an offline-first Python/FastAPI payment backend, using SQLite for data integrity and Docker for containerized deployment. Implemented a Zero-Trust authorization pipeline enforcing strict server-side PIN hash validation, and added ciphertext-hash idempotency to prevent offline replay attacks. Designed hybrid RSA-2048/AES-256-GCM encryption for payments settled over a simulated Bluetooth mesh. Live Demo

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  1. DPI-Engine DPI-Engine Public

    A C++17 deep packet inspection engine that analyzes PCAP captures and reconstructs network flows. It classifies application-layer traffic using TLS SNI and HTTP Host inspection, supporting both sin…

    C++

  2. Your-Own-AI Your-Own-AI Public

    A custom C++ vector database implementing HNSW, KD-Tree, and Brute-Force search. It serves as the backend for a fully local RAG pipeline using Ollama, complete with a REST API and a frontend for 2D…

    C++

  3. UPI-Mesh UPI-Mesh Public

    An offline-first payment backend that settles UPI-style transactions without internet connectivity. It relies on a simulated Bluetooth mesh network and hybrid RSA/AES cryptography, ensuring idempot…

    Python

  4. Restaurant-Agent Restaurant-Agent Public

    A stateful AI restaurant ordering system built with LangGraph and Groq. It handles multi-turn conversations through a FastAPI backend and a Streamlit frontend.

    Python