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Mayetmelkam Meaza

Data Analyst / Data Annotator

ETHIOPIA flag
Addis Ababa, Ethiopia
$8.00/hrIntermediateAppenClickworkerToloka

Key Skills

Software

AppenAppen
ClickworkerClickworker
TolokaToloka

Top Subject Matter

Healthcare
Finance
E-commerce

Top Data Types

ImageImage
AudioAudio
TextText

Top Task Types

Bounding Box
Polygon
Classification
Object Detection
Transcription
Data Collection

Freelancer Overview

Data Analyst. Brings 4+ years of professional experience across complex professional workflows, research, and quality-focused execution. Education includes Upwork•Addis Ababa, Ethiopia•01/ (2024).

IntermediateEnglish

Labeling Experience

Data Labeling

ImageBounding Box
Performed precise 2D bounding box annotations by drawing rectangular frames around target objects in images to enable object detection and localization for computer vision models. Applied class labels to each annotated object, ensuring accurate positioning, size estimation, and count tracking. This work directly supports AI training for applications like surveillance, autonomous vehicles, retail analytics, and content moderation.

Performed precise 2D bounding box annotations by drawing rectangular frames around target objects in images to enable object detection and localization for computer vision models. Applied class labels to each annotated object, ensuring accurate positioning, size estimation, and count tracking. This work directly supports AI training for applications like surveillance, autonomous vehicles, retail analytics, and content moderation.

2024 - Present

Transcriptions

AudioTranscription
Completed audio annotation tasks including speech-to-text transcription, speaker diarization ("who spoke when"), sentiment tagging, and sound event classification. Transcribed diverse audio samples with attention to accents, disfluencies, background noise, and overlapping speech. Labeled emotional tone, speaker identity segments, and non-speech events (laughter, pauses, ambient sounds) to train robust speech recognition and NLP models

Completed audio annotation tasks including speech-to-text transcription, speaker diarization ("who spoke when"), sentiment tagging, and sound event classification. Transcribed diverse audio samples with attention to accents, disfluencies, background noise, and overlapping speech. Labeled emotional tone, speaker identity segments, and non-speech events (laughter, pauses, ambient sounds) to train robust speech recognition and NLP models

2024 - Present

Education

E

Ethiopia•01/

Upwork•Addis Ababa

Upwork•Addis Ababa
2024

Work History

U

Upwork

Data Analyst

Addis Ababa
2024 - Present
I

Independant

Programmer and Graphic Design Manager

Addis Ababa
2023 - Present