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Gcebile Mhlabane

Gcebile Mhlabane

Data Annotation and Labelling

South Africa flagCape Town, South Africa
IntermediateOther

Key Skills

Software

Other

Top Subject Matter

General AI Training
Legal Services & Contract Review
Regulatory Compliance & Risk Analysis

Top Data Types

TextText
DocumentDocument

Top Task Types

Fine-tuningFine-tuning
RLHFRLHF
ClassificationClassification

Freelancer Overview

Data Annotator. Brings 9+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Other. Education includes National Diploma, Vaal University of Technology (2019). AI-training focus includes data types such as Text and labeling workflows including Classification and RLHF.

Intermediate

Labeling Experience

Data Annotator

OtherTextClassification
As a Data Annotator at RWS, I provide data annotation and labeling services to help improve AI model performance. My work involves accurately classifying various text data types to ensure high-quality training datasets for advanced models. I focus on efficient and precise annotation to support rapid AI development. • Executed text classification on substantial datasets for diverse training needs. • Ensured labeling accuracy and consistency for optimal model results. • Collaborated remotely to meet tight deadlines and maintain quality. • Utilized established labeling protocols while adapting to evolving project requirements.

As a Data Annotator at RWS, I provide data annotation and labeling services to help improve AI model performance. My work involves accurately classifying various text data types to ensure high-quality training datasets for advanced models. I focus on efficient and precise annotation to support rapid AI development. • Executed text classification on substantial datasets for diverse training needs. • Ensured labeling accuracy and consistency for optimal model results. • Collaborated remotely to meet tight deadlines and maintain quality. • Utilized established labeling protocols while adapting to evolving project requirements.

2025 - Present

Advanced AI Data Trainer

OtherTextRLHF
In the role of Advanced AI Data Trainer at Invisible Technologies, I was responsible for training AI models using reinforcement learning from human feedback (RLHF). I enhanced data workflows to help develop more accurate and reliable AI solutions. My work contributed directly to the robustness and precision of the trained models. • Conducted supervised RLHF tasks to improve AI language understanding. • Evaluated model outputs and provided corrective human feedback. • Optimized textual data processes to support efficient AI training. • Liaised frequently with project managers to align training practices with objectives.

In the role of Advanced AI Data Trainer at Invisible Technologies, I was responsible for training AI models using reinforcement learning from human feedback (RLHF). I enhanced data workflows to help develop more accurate and reliable AI solutions. My work contributed directly to the robustness and precision of the trained models. • Conducted supervised RLHF tasks to improve AI language understanding. • Evaluated model outputs and provided corrective human feedback. • Optimized textual data processes to support efficient AI training. • Liaised frequently with project managers to align training practices with objectives.

2024 - 2024

Education

V

Vaal University of Technology

National Diploma, Biomedical Technology

National Diploma
2014 - 2019

Work History

P

Pathcare Laboratory

Senior Medical Technologist

Cape Town
2023 - 2024
P

Pathcare Laboratory

Medical Technologist

Cape Town
2020 - 2023