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Tumelo Ramainoane

Tumelo Ramainoane

Data Annotation Specialist - AI & Machine Learning

LESOTHO flag
Maseru, Lesotho
$10.00/hrIntermediateData Annotation TechScale AIToloka

Key Skills

Software

Data Annotation TechData Annotation Tech
Scale AIScale AI
TolokaToloka

Top Subject Matter

No subject matter listed

Top Data Types

AudioAudio
Geospatial Tiled ImageryGeospatial Tiled Imagery
ImageImage

Top Label Types

Audio Recording
Classification
Mapping
Object Detection
Relationship
Tracking
Transcription

Freelancer Overview

I am a detail-oriented data labeling and annotation professional with hands-on experience contributing to AI training data projects on platforms such as UserCrowd and Toloka. My background includes executing a wide range of annotation tasks, pairwise comparisons, and UHRS-based evaluations, consistently delivering high-accuracy outputs while adhering to strict project guidelines. I have a strong track record in data quality assessment, pattern recognition, and supporting AI optimization initiatives. My analytical skills, precision, and commitment to guideline compliance ensure that I provide reliable and consistent results for diverse data annotation and evaluation tasks.

IntermediateEnglish

Labeling Experience

Scale AI

UserCrowd Data Labeler & Research Tasks Contributor

Scale AIImageRelationshipClassification
• Executed data labeling and annotation assignments. ( Labeling of robots, various industry vehicles, ) • Conducted pairwise comparisons and evaluation tasks. • Completed UHRS-based tasks and quality assessments. • Ensured accuracy and compliance with project specifications. • Demonstrated strong attention to detail and analytical judgment.

• Executed data labeling and annotation assignments. ( Labeling of robots, various industry vehicles, ) • Conducted pairwise comparisons and evaluation tasks. • Completed UHRS-based tasks and quality assessments. • Ensured accuracy and compliance with project specifications. • Demonstrated strong attention to detail and analytical judgment.

2024 - 2025
Data Annotation Tech

Toloka Data Annotation, labeling and AI Tasks

Data Annotation TechImageObject DetectionTracking
• Performed data labeling and data annotation tasks across multiple project types. • Conducted pairwise comparisons to evaluate model outputs and data quality. • Completed UHRS (Universal Human Relevance System) tasks with high accuracy. • Contributed to AI training and data optimization projects. • Maintained consistency, precision, and adherence to annotation guidelines.

• Performed data labeling and data annotation tasks across multiple project types. • Conducted pairwise comparisons to evaluate model outputs and data quality. • Completed UHRS (Universal Human Relevance System) tasks with high accuracy. • Contributed to AI training and data optimization projects. • Maintained consistency, precision, and adherence to annotation guidelines.

2021 - 2023

Education

N

National University of Lesotho

Bachelor of Arts, Political Science and Public Administration

Bachelor of Arts
2014 - 2019

Work History

R

Rosa Canina

Administrative Shipping & Logistics Officer

Maseru
2021 - Present
L

LBK Waste Management Services

Enumerator

Maseru
2020 - 2020