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J
Juan Ospina

Juan Ospina

Data Annotator

Colombia flagCali, Colombia
$8.00/hrEntry LevelOther

Key Skills

Software

Other

Top Subject Matter

AI Training Data
Nlp Domain Expertise
Audio Processing

Top Data Types

AudioAudio

Top Task Types

TranscriptionTranscription

Freelancer Overview

Data Annotator (Freelance Project). A year of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Other. Education includes Bachelor of Arts, ICESI University (2022) and Bachelor of Science, ICESI University (2022). AI-training focus includes data types such as Audio and labeling workflows including Transcription.

Entry LevelEnglishSpanish

Labeling Experience

Data Annotator (Freelance Project)

OtherAudioTranscription
As a Data Annotator on a freelance project, I performed data annotation for AI training with a focus on audio transcription and linguistic validation. My responsibilities included curating multimodal datasets, conducting entity identification, and evaluating large language models (LLMs). I also engaged in prompt engineering and AI reasoning analysis throughout the project. • Completed transcription of diverse audio data for natural language processing tasks. • Participated in entity identification and NER labeling efforts. • Evaluated LLM responses for accuracy and reasoning quality. • Developed and tested prompts to optimize AI model outputs.

As a Data Annotator on a freelance project, I performed data annotation for AI training with a focus on audio transcription and linguistic validation. My responsibilities included curating multimodal datasets, conducting entity identification, and evaluating large language models (LLMs). I also engaged in prompt engineering and AI reasoning analysis throughout the project. • Completed transcription of diverse audio data for natural language processing tasks. • Participated in entity identification and NER labeling efforts. • Evaluated LLM responses for accuracy and reasoning quality. • Developed and tested prompts to optimize AI model outputs.

2025 - Present

Education

I

ICESI University

Bachelor of Arts, Music Production

Bachelor of Arts
2017 - 2022
I

ICESI University

Bachelor of Science, International Marketing

Bachelor of Science
2014 - 2022

Work History

O

Open International

Implementation Specialist

Cali
2023 - Present
O

Open International

Product Specialist

Cali
2022 - 2023