Carmelo Cascón

Key Skills

Software

Appen

OneForma

Other

Telus

Clickworker

Top Subject Matter

LLM evaluation

STEM/math reasoning

English-Spanish language QA

Top Data Types

Text

Image

Audio

Top Task Types

Evaluation/Rating

Classification

Data Collection

Fine-tuning

RLHF

Transcription

Text Summarization

Freelancer Overview

AI Model Evaluator and Data Annotation Contributor with freelance experience across AI training and data labeling platforms including Outlier, Appen, OneForma, and similar providers. I specialize in LLM response evaluation, rubric-based quality assessment, STEM and mathematical reasoning review, English-Spanish translation QA, multimodal prompt evaluation, and annotation workflows involving text, images, audio, and email/document classification. My background as a secondary Mathematics teacher and Telecommunications Engineer helps me evaluate reasoning quality, detect flawed prompts, verify final answers, check unit consistency, and apply detailed project guidelines with accuracy. I am particularly strong in Spanish and English-Spanish tasks, mathematical accuracy, instruction-following analysis, PII anonymization, metadata review, and quality control across evolving AI training specifications.

Labeling Experience

AI Model Evaluator / Data Annotation Contributor

AppenTextEvaluation Rating

I evaluated LLM outputs using detailed rubrics focused on factors such as instruction following, fact-checking, completeness, verbosity, and writing style. I conducted quality and accuracy checks for STEM and mathematical reasoning, translation validation, and prompt adherence in both English and Spanish contexts. I completed high-volume workflows involving text, email, and document annotation, anonymization of PII, and multilingual QA assessment. • Performed evaluation of prompt-following, hallucination, and factually accurate responses for LLM model output. • Verified and scored mathematical reasoning and solution logic across STEM tasks. • Conducted English-Spanish translation and localization QA for AI-generated text. • Managed PII removal, metadata review, and categorization of emails and documents.

I evaluated LLM outputs using detailed rubrics focused on factors such as instruction following, fact-checking, completeness, verbosity, and writing style. I conducted quality and accuracy checks for STEM and mathematical reasoning, translation validation, and prompt adherence in both English and Spanish contexts. I completed high-volume workflows involving text, email, and document annotation, anonymization of PII, and multilingual QA assessment. • Performed evaluation of prompt-following, hallucination, and factually accurate responses for LLM model output. • Verified and scored mathematical reasoning and solution logic across STEM tasks. • Conducted English-Spanish translation and localization QA for AI-generated text. • Managed PII removal, metadata review, and categorization of emails and documents.

2024 - Present

Education

Work History