Lorena De Lourdes Romero Esparza

Key Skills

Software

Appen

Clickworker

Label Studio

Lionbridge

OneForma

Prodigy

Telus

Other

Top Subject Matter

No subject matter listed

Top Data Types

Audio

Image

Video

Top Task Types

Bounding Box

Evaluation Rating

Mapping

Polygon

Prompt Response Writing SFT

Freelancer Overview

My recent experience as an Independent Data Annotator & AI Contributor is focused on high-precision data labeling for the training and validation of Machine Learning models. I have executed diverse projects across multiple modalities, including prompt + reponse writing, audio transcription, comparison of voice/music segments, translation and video policy validation, and OCR (Optical Character Recognition), performing these tasks with exceptional accuracy in Spanish, French, and English. My key skill is the ability to rapidly assimilate and apply complex and often contradictory guidelines to ensure critical data quality. What sets me apart is the unique combination of hands-on annotation experience with a strong technical foundation. As a Systems Engineer with a Master's in Artificial Intelligence, and prior experience as a Search Evaluator, I possess a deep understanding of data architecture, model development, and the importance of contextual relevance. This background allows me to move beyond simple task execution and actively contribute to the overall quality and integrity of the training data, ensuring its fitness for purpose in advanced AI systems.

Labeling Experience

Education

Work History