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Matteo Petrelli

@matteopetrelli

AI Engineer at Accenture developing document AI pipelines, with invoice extraction reaching 95.3% accuracy across 171 values.

Italy

Message

At Accenture, I developed and validated Python components for an invoice-extraction pipeline using PyMuPDF, PaddleOCR, and local LLMs and VLMs. I also worked on deterministic validation and a containerized FastAPI service.

I benchmarked seven quantized models with llama.cpp and Ollama, comparing extraction quality, latency, and memory use. The best configuration reached 95.3% accuracy across 171 values from nine invoices.

For my MSc thesis at POLITECNICO DI TORINO – POLITO, I developed a LangGraph diagnostic agent for document visual question answering. I evaluated prompting strategies and vision-language models on corrupted questions derived from DUDE, without fine-tuning.

Experience

Work history, roles, and key accomplishments

Current

AI Engineer

Current

Accenture

Mar 2026 - Present (7 months)

Developed and validated Python components for invoice extraction using PyMuPDF, PaddleOCR, and local LLMs/VLMs, with deterministic validation and a containerized FastAPI service. Benchmarked quantized models and implemented evidence-based validation to improve Italian-invoice identification accuracy.

Python PyMuPDF Paddle OCR LLM VLM fastAPI Podman LLamacpp Ollama Docker Containerization Benchmarking Validation Regression Testing

Education

Degrees, certifications, and relevant coursework

Politecnico di Torino

Master of Science, Data Science and Engineering

2023 -

Activities and societies: Relevant projects: Multi-Output Regression pipeline for particle reconstruction, federated learning analysis with DINO ViT, hybrid summarization framework (GLIMPSE), and recommendation system architecture for Ubik S.R.L.

MSc in Data Science and Engineering, with a thesis on mitigating hallucinations in document visual question answering. Coursework includes machine learning, deep learning, NLP, and big data architectures.

Università Politecnica delle Marche

Bachelor of Science, Management Engineering

2020 - 2023

Activities and societies: Relevant projects: Database design (SQL) for a manufacturing company; Web App development for hospitality; Markstrat business strategy simulation.

BSc in Management Engineering, including a thesis internship developing Python scripts for comparative analysis of publication databases. Relevant projects include database design, web app development, and business strategy simulation.