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I'm Leonardo, a 25-year-old Data Annotator and Data Analyst working with technology companies and as a freelancer since 2025. I specialize in data annotation, data analysis, and artificial intelligence — transforming raw and complex data into structured, meaningful insights that fuel smarter models and data-driven decisions. My work bridges the gap between human understanding and machine learning, helping businesses build more accurate and efficient AI systems.…I'm Leonardo, a 25-year-old Data Annotator and Data Analyst working with technology companies and as a freelancer since 2025. I specialize in data annotation, data analysis, and artificial intelligence — transforming raw and complex data into structured, meaningful insights that fuel smarter models and data-driven decisions. My work bridges the gap between human understanding and machine learning, helping businesses build more accurate and efficient AI systems.

Leonardo Fabricio

Data Analyst, Data Scientist, AI Engineer, +5

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I'm Leonardo, a 25-year-old Data Annotator and Data Analyst working with technology companies and as a freelancer since 2025. I specialize in data annotation, data analysis, and artificial intelligence — transforming raw and complex data into structured, meaningful insights that fuel smarter models and data-driven decisions. My work bridges the gap between human understanding and machine learning, helping businesses build more accurate and efficient AI systems.…I'm Leonardo, a 25-year-old Data Annotator and Data Analyst working with technology companies and as a freelancer since 2025. I specialize in data annotation, data analysis, and artificial intelligence — transforming raw and complex data into structured, meaningful insights that fuel smarter models and data-driven decisions. My work bridges the gap between human understanding and machine learning, helping businesses build more accurate and efficient AI systems.

Available to hire

I’m Leonardo, a 25-year-old Data Annotator and Data Analyst working with technology companies and as a freelancer since 2025.
I specialize in data annotation, data analysis, and artificial intelligence — transforming raw and complex data into structured, meaningful insights that fuel smarter models and data-driven decisions. My work bridges the gap between human understanding and machine learning, helping businesses build more accurate and efficient AI systems.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

Portuguese

Fluent

Italian

Fluent

English

Fluent

German

Advanced

Spanish; Castilian

Fluent

Work Experience

Data Annotator at Thoth AI

January 1, 2025 - Present

Responsible for annotating and labeling data sets to train AI models. Detecting and correcting errors and inconsistencies in AI outputs. Identifying data patterns to improve model accuracy and performance.

Housekeeping Supervisor at Hof Maran Hotel

December 1, 2021 - February 1, 2025

Ensured room quality control and provided excellent guest service. Organized and supervised staff teams, managed supply requisitions, inventory, and overall service quality.

Sales Manager at King Store

December 1, 2017 - August 1, 2021

Conducted sales and market trend analysis to optimize business performance. Managed inventory, cash flow, and sales reports using accounting spreadsheets. Oversaw staff performance and promoted an efficient and customer-focused sales environment.