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Joaquim Mac-mahon

Joaquim Mac-mahon

AI data labeling and review - IT Support Technician

Angola flagLuanda, Angola
$20.00/hrExpertAppenOther

Key Skills

Software

AppenAppen
Other

Top Subject Matter

IT
Telecom
Communication

Top Data Types

AudioAudio
DocumentDocument
ImageImage
TextText
VideoVideo

Top Task Types

Audio Recording
Classification
Data Collection
Emotion Recognition
Evaluation Rating
Question Answering
Segmentation
Transcription
Translation Localization

Freelancer Overview

I have hands-on experience in data labeling, localization, transcription, voice recording, audio labelling, data annotation, mtpe, QA, QC, and AI training data projects through my remote work with Volga Partners, where I contributed to data collection, annotation, transcription, translation, localization, and human QA/QC reviews for AI systems. I am skilled at ensuring data quality and accuracy across tasks such as voice recordings and multilingual data processing, leveraging my proficiency in English, Portuguese, and Spanish. My background in IT support and systems management has given me a strong attention to detail, problem-solving abilities, and a solid understanding of digital systems, which I apply to maintaining high standards in AI training data workflows. I am comfortable working remotely and collaborating with global teams to deliver reliable and well-structured datasets for machine learning and AI applications.

ExpertEnglishSpanishPortuguese

Labeling Experience

Appen

Voice Recording

AppenAudioSegmentationTranslation Localization
I have experience in linguistic roles such as transcriptions, localizations, MTPE human reviews, voice recordings, data collection, data annotations, etc.

I have experience in linguistic roles such as transcriptions, localizations, MTPE human reviews, voice recordings, data collection, data annotations, etc.

2025

Education

T

Teachers Education Institute (GARCIA NETO)

High School Diploma, Education

High School Diploma
2003 - 2003

Work History

A

Aligned / Appen

Data Quality Evaluator

Luanda
2025 - Present
A

Aligned / Appen

Data Quality Evaluator

Luanda
2025 - Present