Thabiso Mabetoa

Key Skills

Software

Scale AI

Toloka

Labelbox

Label Studio

Micro1

Mindrift

OneForma

Telus

Top Subject Matter

Natural Language Processing

AI Data Annotation Quality Assurance

Top Data Types

Text

Image

Audio

Top Task Types

Text Generation

Evaluation Rating

Prompt Response Writing SFT

Transcription

Freelancer Overview

AI Language Trainer. Brings 3+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Scale AI and Toloka. Education includes a Bachelor of Accounting Sciences, University of South Africa (2023) and a Higher Certificate in Accounting Sciences, University of South Africa (2022). AI-training focus includes data types such as Text and labelling workflows, including Text Generation, Evaluation, and Rating.

Labeling Experience

AI Tutor – Expert Annotator

TolokaText

As an AI Tutor – Expert Annotator at Mindrift (Toloka), I review and verify data annotation work to ensure high-quality output for AI models. I develop effective instructions, articulate error findings, and rank responses based on task criteria. My work advances the quality and consistency of annotated datasets used in AI training and validation processes. • Reviewed, verified, and suggested improvements for annotation tasks. • Authored clear and concise instructions for annotators. • Articulated and documented issues and errors in annotated data. • Developed and evaluated training tasks to enhance annotation quality.

As an AI Tutor – Expert Annotator at Mindrift (Toloka), I review and verify data annotation work to ensure high-quality output for AI models. I develop effective instructions, articulate error findings, and rank responses based on task criteria. My work advances the quality and consistency of annotated datasets used in AI training and validation processes. • Reviewed, verified, and suggested improvements for annotation tasks. • Authored clear and concise instructions for annotators. • Articulated and documented issues and errors in annotated data. • Developed and evaluated training tasks to enhance annotation quality.

2024 - Present

AI Language Trainer

Scale AITextText Generation

As an AI Language Trainer at Scale AI, I worked on diverse writing projects to train and improve a generative AI language model. My responsibilities included dataset curation, data cleaning, annotating, ranking AI responses, creative content generation, factual checking, and detailed error analysis for language models. I contributed to the enhancement and fine-tuning of model writing capabilities through diligent evaluation and annotation tasks. • Curated, cleaned, and annotated text-based datasets. • Evaluated and ranked LLM-generated responses for quality and relevance. • Generated creative training data such as short stories and factual summaries. • Conducted accuracy assessments and error analysis to refine language understanding.

As an AI Language Trainer at Scale AI, I worked on diverse writing projects to train and improve a generative AI language model. My responsibilities included dataset curation, data cleaning, annotating, ranking AI responses, creative content generation, factual checking, and detailed error analysis for language models. I contributed to the enhancement and fine-tuning of model writing capabilities through diligent evaluation and annotation tasks. • Curated, cleaned, and annotated text-based datasets. • Evaluated and ranked LLM-generated responses for quality and relevance. • Generated creative training data such as short stories and factual summaries. • Conducted accuracy assessments and error analysis to refine language understanding.

2023 - 2024

Education

Work History