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Christina Reyes Estrada

Christina Reyes Estrada

Former Senior Medical Labeler (onsite at Google)

USA flag
San Francisco, Usa
$40.00/hrIntermediateInternal Proprietary Tooling

Key Skills

Software

Internal/Proprietary Tooling

Top Subject Matter

Clinical/Medical AI Training Data
Healthcare Informatics & EHR Data
Life Sciences & Bio-Tech Research

Top Data Types

TextText
DocumentDocument
AudioAudio

Top Task Types

Diagnosis
Text Summarization

Freelancer Overview

Senior Medical Data Labeler & AI Training Specialist Specialized in high-precision medical data annotation and audio model evaluation with 2+ years of experience, including onsite work at Google. Expert in medical audio labeling, clinical transcription, and linguistic analysis of healthcare dialogues. I bring a unique combination of 12+ years of professional experience in legal operations and compliance with deep technical expertise in medical documentation workflows. Proven track record of delivering high-accuracy labels for complex medical AI projects. Proficient in proprietary labeling orchestration tools, HIPAA-standard data handling, and multi-modal data verification. Expert at identifying clinical entities and nuances within medical speech to improve diagnostic and administrative AI models.

IntermediateEnglish

Labeling Experience

Senior Medical Labeler (onsite at Google)

AudioText Summarization
As Senior Medical Labeler onsite at Google, I curated and annotated high-complexity clinical data to develop 'ground truth' datasets for AI and Large Language Models. I led QA protocol development, data integrity checks, and clinical review processes to ensure data validity and compliance with safety standards. My responsibilities included process engineering, cross-functional leadership, and ongoing refinement of annotation guidelines. • Spearheaded clinical data annotation for LLM and diagnostic AI datasets.• Performed deep-dive audits to achieve 100% validity and accuracy in large clinical datasets.• Collaborated with engineers and data scientists to standardize and scale annotation protocols.• Acted as clinical subject matter expert to bridge the gap between clinical medicine and AI development.

As Senior Medical Labeler onsite at Google, I curated and annotated high-complexity clinical data to develop 'ground truth' datasets for AI and Large Language Models. I led QA protocol development, data integrity checks, and clinical review processes to ensure data validity and compliance with safety standards. My responsibilities included process engineering, cross-functional leadership, and ongoing refinement of annotation guidelines. • Spearheaded clinical data annotation for LLM and diagnostic AI datasets.• Performed deep-dive audits to achieve 100% validity and accuracy in large clinical datasets.• Collaborated with engineers and data scientists to standardize and scale annotation protocols.• Acted as clinical subject matter expert to bridge the gap between clinical medicine and AI development.

2017 - 2019

Education

U

University of California Irvine

Bachelor of Arts, Public Health Policy

Bachelor of Arts
2005 - 2009
U

University of California, Irvine

Bachelor of Arts, Psychology and Social Behavior

Bachelor of Arts
Not specified

Work History

U

UCSF

Emergency Department Chief Scribe

San Francisco
2012 - 2020
S

Silver Avenue Family Health Center

Volunteer Coordinator and Health Coach

San Francisco
2012 - 2014