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MariosGramm/README.md

👋 Hi, I'm Marios Grammatopoulos

🚀 Full Stack Developer | AI Systems Engineer | Building scalable, production-ready applications

🧠 About Me

I am a Full Stack Developer focused on designing and delivering robust, scalable systems across the entire stack.

My expertise lies in AI-driven application development, where I architect and integrate intelligent systems using Large Language Models (LLMs), AI agents, and Retrieval-Augmented Generation (RAG).

I approach software engineering with a strong emphasis on clean architecture, performance, and real-world impact.

💻 Core Technologies

Frontend

  • React
  • Modern JavaScript (ES6+)
  • HTML5 / CSS3

Backend

  • C#
  • Python
  • RESTful API Design
  • Scalable System Architecture

AI Engineering

  • LLM Integration & Optimization
  • Prompt Engineering
  • AI Agents Development
  • RAG Architecture (Retrieval-Augmented Generation)
  • PCTF Framework
  • End-to-end AI system design

⚙️ Professional Focus

  • Designing and developing full-stack applications at scale
  • Architecting clean, maintainable backend systems
  • Building AI-powered features for production environments
  • Developing intelligent agents and RAG-based pipelines
  • Bridging the gap between software engineering and applied AI

🧩 Key Strengths

  • Strong system design & architectural thinking
  • Ability to deliver end-to-end solutions independently
  • Deep understanding of AI integration in real products
  • Focus on performance, scalability, and maintainability

📈 Current Goals

  • Advancing in AI system architecture & LLM ecosystems
  • Building high-impact AI-driven products
  • Contributing to complex, scalable software systems

📫 Contact

Pinned Loading

  1. code-generator code-generator Public

    Command-line tool (CLI) that generates Python code from natural language, by calling an OpenAI LLM in the background .

    Python

  2. cv-generator-app cv-generator-app Public

    A dynamic CV generator built with React + TypeScript, designed to create resumes through an interactive form interface and export them as clean PDF documents.

    TypeScript

  3. inventory-management-app inventory-management-app Public

    A Server Side Rendering (SSR) app for inventory management.

    Java

  4. lambda-function lambda-function Public

    A To-Do List API application based on AWS Lambda and Terraform.

    HCL

  5. nova-bank nova-bank Public

    Full stack e-banking application - capstone project for the Coding Factory bootcamp

    C#

  6. personality-chatbot personality-chatbot Public

    Full stack web application - Personality summarry from an LLM

    C#