Celiwe Mathebula - AI Data Annotator & LID Data Commissioning Specialist – RWS; Outlier

Key Skills

Software

Other

Appen

CrowdSource

Mercor

Mindrift

Telus

Top Subject Matter

Language Identification (LID)

AI model training

Legal Services & Contract Review

Top Data Types

Text

Image

Audio

Top Task Types

Classification

Bounding Box

Text Generation

Fine Tuning

Transcription

Prompt Response Writing SFT

Question Answering

Segmentation

Freelancer Overview

I have worked several projects accross various platforms like RWS, REV, Teleus and Outlier. Based on the rating and quality assurance systems employed by these platforms, I have consistently provided above average work with a QA score of 3.2 on Outlier. I have qualified for annotation in general reasoning, audio and video, as well as Language modelling for English, Tsonga and Zulu.

IntermediateEnglish

Labeling Experience

Data annotator

ImageBounding Box

The Aether project is a very large project for a renowned software company and includes annotation work accross various fields like gaming, medical, photoshop, language modeling as well as smart art modelling to mention a few. The work involves bounfing boxes; text and image generation; audio transcription; website annotation; text verification etc.

2026 - Present

Annotator

AudioTranscription

The Aether project is a very large project for a renowned software company and includes annotation work accross various fields like gaming, medical, photoshop, language modeling as well as smart art modelling to mention a few. The work involves bounfing boxes; text and image generation; audio transcription; website annotation; text verification etc.

2026 - Present

Annotator

TextFine Tuning

The Aether project is a very large project for a renowned software company and includes annotation work accross various fields like gaming, medical, photoshop, language modeling as well as smart art modelling to mention a few. The work involves bounfing boxes; text and image generation; audio transcription; website annotation; text verification etc.

2026 - Present

Transcriptionist

AudioTranscription

The Aether project is a very large project for a renowned software company and includes annotation work accross various fields like gaming, medical, photoshop, language modeling as well as smart art modelling to mention a few. The work involves bounfing boxes; text and image generation; audio transcription; website annotation; text verification etc.

2020 - 2021

AI Data Annotator & LID Data Commissioning Specialist – RWS; Outlier

OtherTextClassification

As an AI Data Annotator & LID Data Commissioning Specialist at RWS and Outlier, I performed high-accuracy data annotation to support AI model training. I labeled and validated multilingual text datasets focusing on language identification and classification tasks according to strict guidelines. My work maintained high standards of quality, confidentiality, and productivity in remote environments. • Performed complex language identification (LID) data annotation in multiple languages • Followed established taxonomies and guidelines for consistent labeling results • Managed edge cases and ambiguity with critical thinking and quality checks • Supported multiple projects (Ruby, Diamond, LATTE, Aether) delivering on productivity benchmarks

2022

Education

F

FreeCodeCamp

HTML; CSS3, Responsive Web Design

HTML; CSS3

2025 - 2025

L

Lowveld High School

High School Diploma, General High School Education

High School Diploma

2012 - 2016

Work History

D

DCL Mechanics

Site Administrator / Store Manager

N/A

2025 - Present

L

Lesedi-Sedi Educare Centre

School Manager

N/A

2020 - 2021