Mario Leone

AI Engineer | Data Scientist | Teacher

Experienced AI Engineer with a strong background in algorithmic trading systems, machine learning, and data-driven applications. I design and implement low-latency architectures and real-time dashboards powered by intelligent agents, combining C++ performance with Python-based AI models.

mleone12@gmail.com · https://github.com/AstroMarius/

Work

AI Engineer · Data Scientist/Analyst · Full Stack Developer — Freelance

2019

  • Architected and delivered end-to-end AI solutions for algorithmic and high-frequency trading.
  • Designed and deployed AI-powered trading agents integrating reinforcement learning and deep neural networks.
  • Built scalable real-time, low-latency data pipelines with ZeroMQ, Docker, and ClickHouse.
  • Developed full stack applications and interactive financial dashboards (frontend React, backend Node.js/Express, SQL/NoSQL DB).
  • Designed and implemented data pipelines, data cleaning, and preprocessing workflows for structured/unstructured datasets.
  • Conducted advanced data analysis, building credit risk models, churn prediction systems, and time-series forecasting solutions.
  • Integrated LLMs for financial analytics, risk assessment, sentiment analysis, and automated reporting.
  • Implemented backtesting and simulation frameworks for systematic evaluation of trading strategies.
  • Led multi-agent architectures combining C++ (performance) and Python (AI/ML).
  • Optimized GPU workloads (CUDA, NVIDIA RTX, PyTorch/TensorFlow).
  • Delivered consulting and training services on AI integration, ML pipelines, data science workflows, and full stack development best practices.

Data Analyst / Scientist — Freelance

2010

  • Conducted statistical modeling and predictive analysis for financial and industrial sectors.
  • Developed credit risk models, churn prediction systems, and time-series forecasting solutions.
  • Designed and deployed machine learning workflows from preprocessing to production.
  • Managed ETL pipelines and large-scale datasets ensuring quality and reproducibility.
  • Collaborated with cross-functional teams to integrate AI-driven dashboards and decision support tools.

Teacher (Mathematics & Physics) — Public & Private Schools (IT/CH)

2013

  • Taught high school Mathematics and Physics in Italy and Switzerland.
  • Designed curricula bridging math, physics, and computer science with real-world applications.
  • Prepared students for university-level STEM pathways.
  • Developed digital resources and interactive materials using LaTeX, Zoom, and GitHub.

Education

M.Sc., Astrophysics

University of Padua (Italy) — 2010 – 2013

B.Sc., Astrophysics

University of Padua (Italy) — 2004 – 2009

Diploma, Swiss Maturity Diploma

Private Student (Switzerland) — 1999 – 2002

Skills

Programming & Technical Skills

C++, Python, TypeScript, JavaScript, R, MATLAB, SQL, C

ML & AI

PyTorch, TensorFlow, Scikit-learn, Hugging Face, Deep Learning, Reinforcement Learning, Financial ML

Data Engineering

ETL pipelines, Data Cleaning, Data Mining, Structured & Unstructured Data, ClickHouse, ZeroMQ

Visualization

Tableau, Power BI, Data Storytelling, Advanced Excel

Cloud & DevOps

AWS, Azure, Docker, Kubernetes, Jenkins, Git, GitHub Actions, Linux (Arch)

Other Tools

Ollama, Text-Generation-WebUI, Bash, WordPress, Adobe Illustrator, Photoshop

Languages

  • Italian — Native
  • English — Fluent
  • French — Intermediate
  • German — Basic

Projects