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Thembeka Portia Cebisa

Thembeka Portia Cebisa

Data Annotation Specialist - E-commerce & AI

SOUTH_AFRICA flag
johannersburg, South Africa
$5.00/hrEntry LevelData Annotation Tech

Key Skills

Software

Data Annotation TechData Annotation Tech

Top Subject Matter

No subject matter listed

Top Data Types

VideoVideo

Top Label Types

Evaluation Rating
Data Collection

Freelancer Overview

I am an experienced data annotation and quality assurance specialist with a strong technical foundation in mechatronics and a passion for leveraging AI to solve real-world problems. My work includes reviewing and categorizing products for e-commerce platforms, evaluating AI-generated responses for safety and accuracy, and auditing data submissions to maintain high standards of quality. I am skilled in using digital tools such as Microsoft Office Suite, video conferencing software, and learning management systems, and I bring meticulous attention to detail and a commitment to delivering reliable, high-quality training data. My background in freelance writing and transcription also gives me a keen eye for language and communication, which I apply to tasks in natural language processing and data labeling. I am eager to contribute my skills and dedication to innovative projects in the AI and data annotation space.

Entry LevelEnglishZulu

Labeling Experience

Data Annotation Tech

Data Annotation / QA Expert at Outlier

Data Annotation TechVideoEvaluation RatingData Collection
As a Data Annotation and QA Expert for Outlier, I reviewed and categorized products for e-commerce data sets. I evaluated AI-generated text responses for safety, helpfulness, and factual accuracy as part of AI training workflows. Additionally, I audited the work of other annotators to ensure consistent data quality. • Conducted detailed product categorization and classification for e-commerce platforms. • Rated and provided feedback on the accuracy and appropriateness of AI-generated outputs. • Performed quality assurance on data annotation submissions from other contributors. • Worked in a fast-paced, remote environment using specialized annotation tools.

As a Data Annotation and QA Expert for Outlier, I reviewed and categorized products for e-commerce data sets. I evaluated AI-generated text responses for safety, helpfulness, and factual accuracy as part of AI training workflows. Additionally, I audited the work of other annotators to ensure consistent data quality. • Conducted detailed product categorization and classification for e-commerce platforms. • Rated and provided feedback on the accuracy and appropriateness of AI-generated outputs. • Performed quality assurance on data annotation submissions from other contributors. • Worked in a fast-paced, remote environment using specialized annotation tools.

2023

Education

U

University of South Africa

Diploma, Mechatronics

Diploma
2022 - 2024
S

Sedibeng TVET College

National Certificate Vocational Level 4, Mechatronics

National Certificate Vocational Level 4
2018 - 2020

Work History

U

Upwork

Freelance Writer

Johannersburg
2023 - Present
F

Freelance

Online Tutor

Johannerburg
2020 - 2022