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pop123-ux/README.md

Hi, I'm Alexandru 👋

17-year-old ICYS gold medalist. Competing in AI, shipping tools that matter.
Building at the intersection of AI, cybersecurity and developer tooling.

GitHub Medium Hack The Box TryHackMe


🥇 ICYS 2026 — Gold Medal, Life Sciences

A Bio-Responsive Gold Nanoparticle Platform with Machine Learning Integration for Intelligent L-Cysteine Detection

A web application built around a machine-learning regression model that predicts L-cysteine concentration from the colour change of gold nanoparticles at different molar concentrations.

📄 Official results — ICYS 2026 (International Conference of Young Scientists)


🧠 About Me

  • 🥇 ICYS 2026 Gold Medalist — Life Sciences category (see above)
  • 🔐 Security enthusiast — practicing on Hack The Box, TryHackMe & CyLab Security Academy
  • 🛠️ Builder — I ship practical tools: AI-powered apps, ML pipelines and innovative projects
  • 🗣️ Languages — Romanian (native), English (fluent), German (beginner)

🚀 Featured Projects

Project What it is Stack
huggingface-project-learning Romanian extractive QA fine-tuned on XQuAD-ro, benchmarking monolingual against multilingual BERT — plus GRPO implemented three ways: from scratch in raw PyTorch, with TRL, and with Unsloth Transformers · TRL · Unsloth · Datasets
doc-assistant-hf Document assistant with three modes: a QLoRA fine-tuned summarizer, a TextRank extractive summarizer built from scratch, and extractive QA with custom span decoding PyTorch · PEFT · Transformers · Gradio
opencv-document-scanner Finds a document in a photo, corrects the perspective and exports a clean scan in B&W, grayscale or enhanced colour — shipped as an installable package with a CLI, tests and CI OpenCV · NumPy · pytest
captcha-solver-cnn Splits 4-character CAPTCHAs into single glyphs with OpenCV contour detection, then classifies each with a CNN — ~99.5% validation accuracy PyTorch · OpenCV

🔧 Tech Stack

Languages

Python

AI & Core ML

PyTorch Hugging Face scikit-learn XGBoost LightGBM CatBoost

Data Science & Analytics

Pandas NumPy Matplotlib

Computer Vision

OpenCV

Tools & Platforms

Weights & Biases Scapy Node.js PyPI GitHub Actions Git VS Code


📜 Certifications & Achievements

Certification Issuer
🥇 ICYS 2026 — Gold Medal, Life Sciences ICYS
Cyber Security 101 TryHackMe
AI Security TryHackMe
The LLM Course — Unit 1 Hugging Face
The LLM Course — Unit 3 Hugging Face
The Reasoning Course — Fundamentals of GRPO Hugging Face
Python freeCodeCamp
🖼️ View certificates

TryHackMe — Cyber Security 101 TryHackMe Cyber Security 101

TryHackMe — AI Security TryHackMe AI Security

Hugging Face — The LLM Course, Unit 1 Hugging Face LLM Course Unit 1

Hugging Face — The LLM Course, Unit 3 Hugging Face LLM Course Unit 3

Hugging Face — The Reasoning Course, Fundamentals of GRPO Hugging Face Reasoning Course GRPO

freeCodeCamp — Python freeCodeCamp Python


📊 GitHub Stats

GitHub stats Top languages


🔗 Find Me

Hack The Box TryHackMe CyLab Security Academy ONIA GitHub Medium Facebook


Always building. Always learning.

Popular repositories Loading

  1. HuggingFace-Project-Learning HuggingFace-Project-Learning Public

    A complete repo that showcases my knowledge of the Hugging Face API

    Jupyter Notebook 3

  2. AI-Prompt-Injection AI-Prompt-Injection Public

    AI Prompt Injection Cheet Sheet -- providing a practical collection of techniques, patterns, and examples for understanding and solving AI-prompt-injection challenges in CTF environments and AI sec…

    Jupyter Notebook 1

  3. soccer-predictor soccer-predictor Public

    JavaScript 1

  4. drone-position-clustering drone-position-clustering Public

    A beginner-friendly ML project that estimates hidden drone positions from spark clouds using K-Means clustering and predicts future movement with linear regression.

    Jupyter Notebook 1

  5. opencv-document-scanner opencv-document-scanner Public

    A curated document scanner built using Python and OpenCV

    Python 1

  6. neural-style-transfer-cnn neural-style-transfer-cnn Public

    Neural Style Transfer CNN project using VGG19's Architecture

    Python 1