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Andrea-ximena Castaño

Andrea-ximena Castaño

AI Training Specialist - Educational Technology

COLOMBIA flag
Pereira, Colombia
$15.00/hrEntry LevelInternal Proprietary ToolingOther

Key Skills

Software

Internal/Proprietary Tooling
Other

Top Subject Matter

No subject matter listed

Top Data Types

TextText
AudioAudio

Top Label Types

Text Generation
Prompt Response Writing SFT
Audio Recording
Transcription

Freelancer Overview

I have experience supporting AI training projects through structured data annotation, response evaluation, and quality review tasks. I’ve assessed AI-generated outputs for clarity, factual accuracy, reasoning quality, and instruction-following, including technical and educational content. With a background in computer engineering and educational technology, I’m comfortable reviewing code-related tasks, written explanations, and structured datasets while following detailed guidelines carefully. I’m detail-oriented, consistent, and comfortable working independently in remote environments. I communicate clearly in written feedback, adhere strictly to task instructions, and focus on delivering accurate, high-quality annotations that help improve model performance and reliability.

Entry LevelEnglishSpanish

Labeling Experience

improving the naturalness and tone of AI-generated texts

OtherAudioAudio RecordingTranscription
to review short prompts, responses, and justifications, removing robotic or unnatural language and punctuation (like em dashes) while keeping meaning and intent consistent. The goal is to make each piece sound realistic, like something a real person would say, by refining flow, punctuation, and tone.​

to review short prompts, responses, and justifications, removing robotic or unnatural language and punctuation (like em dashes) while keeping meaning and intent consistent. The goal is to make each piece sound realistic, like something a real person would say, by refining flow, punctuation, and tone.​

2025 - 2025

Prompting accuracy

Internal Proprietary ToolingTextText GenerationPrompt Response Writing SFT
The project consisted on reviewing prompts and answers based on evaluation criteria.

The project consisted on reviewing prompts and answers based on evaluation criteria.

2024 - 2025

Education

R

Rovira i Virgili University

Doctor of Philosophy, Educational Technology – E-Learning and Knowledge Management

Doctor of Philosophy
2009 - 2014
O

OsloMet University & Rovira i Virgili University

Master of Education, Adult and Professional Education

Master of Education
2007 - 2009

Work History

A

Academic and Corporate

Learning & Development Specialist / Instructional Designer

Colombia
2020 - Present
W

Welearn

Instructional Designer

Bogotá (assumed)
2025 - 2025