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Lorenzo Barraco

Senior AI Engineer

Lorenzo Barraco
Padua, Italy

Experience

Apr 2024 - Present
1 year 11 months
New York, United States

Senior AI Engineer

Beam AI

  • Architected data pipelines handling 500 enterprise workflows monthly, deploying statistical monitoring and anomaly detection systems that identified operational inefficiencies and enabled data-driven business optimization
  • Analyzed large-scale enterprise datasets to uncover automation opportunities across finance, HR, and operations, delivering insights that cut operational costs by 35% and drove 3x team productivity gains
  • Designed and implemented RAG pipelines with semantic search across 10K+ enterprise documents, delivering 92% accuracy through advanced feature engineering and embedding optimization techniques
  • Developed real-time analytics dashboards tracking AI agent performance metrics, analyzing behavioral data to inform model improvements and reaching 88% automation success rate through continuous A/B testing
  • Established comprehensive MLOps infrastructure using Azure ML, MLflow, and Weights & Biases with automated experiment tracking, reducing model deployment cycles from 3 weeks to 4 hours
  • Engineered production-grade AI agents using GPT-4, Claude 3.5 Sonnet, and Gemini Pro with advanced prompt engineering and function calling for enterprise automation workflows
  • integrated monitoring and cost optimization using Helicone and LangSmith, reducing LLM operational costs by 40% through statistical analysis of token usage patterns and intelligent caching strategies
  • Constructed scalable backend microservices using FastAPI and Azure Functions, handling 8M+ daily automation requests with 99.9% uptime
  • Spearheaded technical architecture discussions with 5+ Fortune 500 clients, translating complex business requirements into data-driven AI solutions
Feb 2022 - Apr 2024
2 years 3 months
Netherlands

Senior AI Engineer

COMPUTD

  • Evaluated 500K+ business documents monthly to develop intelligent document understanding systems using BERT, RoBERTa, and LayoutLM, applying statistical NLP techniques and attaining 94% extraction accuracy for European enterprise clients
  • Conducted comprehensive data analysis across multi-language datasets supporting 4 languages, developing sentiment analysis and entity recognition pipelines with 91% accuracy exceeding industry benchmarks by 8%
  • Crafted and deployed recommendation engines through collaborative filtering and neural network modeling, improving client conversion rates by 28% and driving $2M+ in additional revenue through data-driven personalization
  • Built question-answering systems using BERT and Sentence-BERT with FAISS, enabling sub-second queries across 5M+ documents with 89% answer relevance score through advanced feature extraction
  • Performed exploratory data analysis on customer interaction patterns, identifying key business metrics and creating executive dashboards that informed product strategy and boosted user engagement by 22%
  • Pioneered MLOps best practices using MLflow, DVC, and Kubeflow on AWS, implementing automated retraining pipelines that improved model performance by 15% through systematic experimentation
  • Optimized model inference using ONNX Runtime and TorchServe on AWS, achieving 3.5x speedup and 50% cost reduction through performance profiling and statistical analysis
  • Architected backend services using FastAPI and Django with PostgreSQL and Redis, building scalable APIs supporting 10K+ requests/minute for real-time NLP inference
  • Partnered with 20+ enterprise clients to formulate end-to-end data science solutions, ensuring 95% client retention rate through continuous data-driven insights
Feb 2018 - Jan 2022
4 years
United Kingdom

AI Engineer | Data Scientist

Allmatics

  • Created predictive analytics models using XGBoost, LightGBM, and Random Forests for demand forecasting, enhancing prediction accuracy by 32% and cutting inventory costs by $800K annually through sophisticated feature engineering and ensemble techniques
  • Analyzed large-scale datasets using Apache Spark, Pandas, and SQL on AWS EMR, handling 50TB+ data monthly and uncovering insights that drove $1.5M in cost savings through comprehensive statistical analysis
  • Conducted exploratory data analysis and hypothesis testing to identify key drivers of customer behavior, developing segmentation models that powered targeted marketing strategies and increased ROI by 45%
  • Engineered NLP solutions for text classification and named entity recognition using LSTM, GRU, and BERT models, handling 100K+ documents monthly with 87% F1-score
  • Delivered computer vision systems using CNNs with ResNet, EfficientNet, and YOLO, reaching 96% detection accuracy and decreasing manual inspection time by 75% through data-driven quality control
  • Executed MLOps workflows using Docker, Jenkins, and Kubernetes on GCP and AWS, establishing CI/CD pipelines that reduced model deployment time by 70% and elevated reliability to 99.5%
  • Developed backend APIs using Flask and Django REST Framework with MySQL and MongoDB, creating microservices supporting 5K+ requests/minute for ML model serving
  • Facilitated technical workshops for 10+ client teams, devised data-driven solution architectures, and mentored 5 junior engineers in data science best practices
Apr 2016 - Jan 2018
1 year 10 months
United Kingdom

ML Developer | Data Analyst

Byteal Ltd

  • Generated machine learning models using Random Forests, Gradient Boosting, and Logistic Regression, attaining 84% prediction accuracy through rigorous feature selection and cross-validation techniques
  • Constructed time-series forecasting systems using ARIMA, Prophet, and ensemble methods for demand prediction, enhancing planning accuracy by 40% and lowering stockout incidents by 60% through statistical modeling
  • Launched ETL pipelines using Python, SQL, and Pandas, ingesting 2M+ records daily from multiple sources and ensuring 99.7% data quality through comprehensive validation and cleansing workflows
  • Produced data visualization dashboards using Matplotlib, Seaborn, and Tableau for 8+ enterprise clients, presenting actionable insights to C-level stakeholders through compelling data storytelling
  • Performed comprehensive statistical analysis including regression modeling, cohort analysis, and survival analysis to inform business strategy and increase operational efficiency by 25%
  • Streamlined data analytics workflows through automation scripts and scheduled jobs, cutting manual reporting time by 80% and providing real-time business intelligence
  • Collaborated cross-functionally with business stakeholders to define KPIs, design A/B tests, and measure the impact of data-driven initiatives on business outcomes

Industries Experience

See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.

Experienced in Information Technology (10 years) and Professional Services (4 years).

Information Technology
Professional Services

Business Areas Experience

The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.

Experienced in Business Intelligence (10 years), Information Technology (10 years), and Product Development (6 years).

Business Intelligence
Information Technology
Product Development

Summary

Senior Data Scientist with over 9 years of experience delivering data-driven insights and advanced analytics solutions across enterprise environments. Specializing in predictive modeling, machine learning, statistical analysis, and data pipeline engineering, with expertise spanning from classical data science to modern Generative AI applications. Successfully transformed business operations through data-driven decision making for Fortune 500 companies and scale-ups, combining deep analytical expertise with production-grade ML engineering and scalable backend development.

Skills

  • Data Science & Analytics: Predictive Modeling, Statistical Analysis, Time-series Forecasting, A/b Testing, Hypothesis Testing, Feature Engineering, Demand Forecasting, Customer Analytics
  • Programming Languages: Python, R, Sql, Java, Javascript, Scala
  • Ml/dl Frameworks: Scikit-learn, Xgboost, Lightgbm, Pytorch, Tensorflow, Transformers, Hugging Face, Spacy, Nltk, Keras
  • Data Processing & Etl: Pandas, Numpy, Apache Spark, Apache Kafka, Pyspark, Dask, Polars, Apache Beam, Sql
  • Visualization & Bi: Matplotlib, Seaborn, Plotly, Tableau, Power Bi, Jupyter Notebooks
  • Mlops & Devops: Mlflow, Weights & Biases, Dvc, Docker, Kubernetes, Apache Airflow, Github Actions
  • Cloud Platforms: Aws (Sagemaker, Emr, S3, Lambda, Ec2), Microsoft Azure (Azure Ml, Functions), Google Cloud Platform (Gcp)
  • Databases: Postgresql, Mysql, Mongodb, Redis, Sqlite, Dynamodb, Cassandra
  • Ai/genai: Langchain, Llamaindex, Openai Apis, Rag, Vector Databases (Pinecone, Faiss, Weaviate)
  • Optimization & Deployment: Onnx, Tensorrt, Torchserve, Tensorflow Serving, Model Quantization, Vllm
  • Backend Frameworks: Django Rest Framework, Node.js, Express.js, Celery, Sqlalchemy, Pydantic

Languages

Italian
Intermediate
English
Elementary
Dutch
Elementary

Education

May 2012 - Mar 2016

Sapienza University of Rome

Bachelor's Degree in Computer Science · Computer Science · Rome, Italy

Profile

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Frequently asked questions

Do you have questions? Here you can find further information.

Where is Lorenzo based?

Lorenzo is based in Padua, Italy.

What languages does Lorenzo speak?

Lorenzo speaks the following languages: Italian (Intermediate), English (Elementary), Dutch (Elementary).

How many years of experience does Lorenzo have?

Lorenzo has at least 10 years of experience. During this time, Lorenzo has worked in at least 3 different roles and for 4 different companies. The average length of individual experience is 3 years and 6 months. Note that Lorenzo may not have shared all experience and actually has more experience.

What roles would Lorenzo be best suited for?

Based on recent experience, Lorenzo would be well-suited for roles such as: Senior AI Engineer, AI Engineer | Data Scientist, ML Developer | Data Analyst.

What is Lorenzo's latest experience?

Lorenzo's most recent position is Senior AI Engineer at Beam AI.

What companies has Lorenzo worked for in recent years?

In recent years, Lorenzo has worked for Beam AI, COMPUTD, and Allmatics.

Which industries is Lorenzo most experienced in?

Lorenzo is most experienced in industries like Information Technology (IT) and Professional Services.

Which business areas is Lorenzo most experienced in?

Lorenzo is most experienced in business areas like Business Intelligence, Information Technology (IT), and Product Development.

Which industries has Lorenzo worked in recently?

Lorenzo has recently worked in industries like Information Technology (IT) and Professional Services.

Which business areas has Lorenzo worked in recently?

Lorenzo has recently worked in business areas like Business Intelligence, Information Technology (IT), and Product Development.

What is Lorenzo's education?

Lorenzo holds a Bachelor in Computer Science from Sapienza University of Rome.

What is the availability of Lorenzo?

Lorenzo is immediately available full-time for suitable projects.

What is the rate of Lorenzo?

Lorenzo's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.

How to hire Lorenzo?

To hire Lorenzo, click the Meet button on the profile to request a meeting and discuss your project needs.

Average rates for similar positions

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Market avg: 390-550 €
The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.
Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.