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CatalinMoldova/README.md

Hi, I'm Catalin Botezat

I'm a Mathematics & Computer Science student at NYU Abu Dhabi building projects at the intersection of machine learning, quantitative finance, and software engineering.

My background in competitive mathematics and programming shapes how I work: I like turning mathematical ideas into clean, reproducible systems — from financial modeling and credit-risk audits to deep learning pipelines, LLM fine-tuning, and production web applications.

What I Build

  • Machine Learning Systems — deep learning pipelines, model evaluation, fine-tuning, ablation studies, and reproducible experiments.
  • Quantitative Finance & Statistical Modeling — factor models, regression, backtesting infrastructure, credit-risk analysis, and trading strategy research.
  • Software Engineering Projects — full-stack applications, production websites, clean APIs, testing, CI, and deployment-ready project structure.
  • AI Research Prototypes — LLM fine-tuning, optimization methods, model diagnostics, and applied research notebooks.

Featured Projects

ML & AI

SmolLM LoRA Fine-Tuning
Parameter-efficient fine-tuning of SmolLM-135M using LoRA, with rank ablation, W&B experiment tracking, perplexity evaluation, and qualitative failure-mode analysis.

Vehicle Trajectory Behavior Classifier
CNN-LSTM pipeline for classifying driving behavior from speed and position time-series data, focused on sequence modeling and mobility analytics.

Reactiva Perú Credit-Risk Audit
Replication and methodological audit of credit-risk ML models, identifying target leakage through statistical testing and Random Forest validation.

Quantitative Finance

Trading Strategy ML
Machine learning research pipeline for financial time-series modeling, strategy training, evaluation, and reproducible experimentation.

Hedge Fund Returns Analysis
Ridge regression and Fama-French factor analysis for hedge fund return modeling, including bias-variance analysis and feature engineering.

Software Engineering

AcademicHub
Production Next.js website for a Moldovan mathematics school preparing 100+ active students for national exams, with enrollment flows, SEO, and lead-management features.

Halma Minimax AI
Python game AI implementing Minimax and Alpha-Beta pruning for strategic decision-making in Halma.

Technical Stack

Languages: Python, TypeScript, C++, SQL
ML/Data: PyTorch, scikit-learn, pandas, NumPy, Jupyter, W&B
Software: Next.js, React, Tailwind CSS, FastAPI, Docker, GitHub Actions
Finance/Stats: regression, factor models, time-series analysis, backtesting, risk modeling
Interests: ML engineering, AI agents, quantitative trading, financial modeling, optimization, applied AI research

Pinned Loading

  1. academic-hub academic-hub Public

    Production Next.js website for AcademicHub.md, a Moldovan math school preparing 100+ active students for national exams, with enrollment flows, SEO, and lead management.

    TypeScript 1

  2. vehicle-trajectory-behavior-classifier vehicle-trajectory-behavior-classifier Public

    CNN-LSTM pipeline for classifying driving behavior from vehicle speed and position time series.

    Jupyter Notebook

  3. reactiva-peru-credit-risk-audit reactiva-peru-credit-risk-audit Public

    Replication and methodological audit of credit-risk ML models for Reactiva Perú, uncovering target leakage through statistical tests and Random Forest validation.

    Jupyter Notebook

  4. smollm-lora-greentext-finetuning smollm-lora-greentext-finetuning Public

    Parameter-efficient fine-tuning of SmolLM-135M with LoRA, rank ablation, W&B tracking, perplexity evaluation, and qualitative failure-mode analysis.

    Jupyter Notebook

  5. VibeTravel/VibeTravel VibeTravel/VibeTravel Public

    AI Travel Architect: From "Vibe Check" to PDF Itinerary. 📍 Smart Discovery | ⚡ Parallel Flight Search | 📅 Auto-Itineraries. Built with Google ADK, Gemini 2.5, SerpAPI, and React 19.

    Python 2

  6. hedge-fund-factor-risk-modeling hedge-fund-factor-risk-modeling Public

    Quantitative finance project modeling hedge fund returns with Fama-French factors, ridge regression, rolling exposures, and out-of-sample risk attribution.

    Python