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T

Tionge Ngoma

Research Contributor

South Africa flagJohannesburg, South Africa
$7.00/hrIntermediateOther

Key Skills

Software

Other

Top Subject Matter

AI-driven Digital Systems
Research Annotation for AI
Audio and Video Transcription

Top Data Types

AudioAudio
TextText
VideoVideo
DocumentDocument

Top Task Types

Classification
Transcription

Freelancer Overview

User Testing Contributor. Brings 2+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Other. Education includes Bachelor of Business Systems, N/A (2021). AI-training focus includes data types such as Audio and Text and labeling workflows including Evaluation, Rating, and Classification.

IntermediateEnglish

Labeling Experience

Research Contributor

OtherTextClassification
Completed research and annotation tasks for intent classification, data validation, and reasoning. Followed comprehensive annotation guidelines and performed precise data labeling under time constraints. Ensured accuracy and consistent output quality to support AI development. • Implemented categorization of textual data • Used intent classification methods • Contributed to data validation processes • Delivered reasoned, guideline-compliant outputs

Completed research and annotation tasks for intent classification, data validation, and reasoning. Followed comprehensive annotation guidelines and performed precise data labeling under time constraints. Ensured accuracy and consistent output quality to support AI development. • Implemented categorization of textual data • Used intent classification methods • Contributed to data validation processes • Delivered reasoned, guideline-compliant outputs

2021 - Present

User Testing Contributor

OtherAudio
Provided structured feedback on digital and AI-driven systems to enhance model outputs. Identified reasoning gaps, inaccuracies, and usability issues according to detailed guidelines. Maintained high quality and consistency when evaluating AI-generated responses. • Conducted systematic usability reviews • Delivered both audio and written evaluations • Used feedback to support model refinement • Ensured adherence to evaluation criteria

Provided structured feedback on digital and AI-driven systems to enhance model outputs. Identified reasoning gaps, inaccuracies, and usability issues according to detailed guidelines. Maintained high quality and consistency when evaluating AI-generated responses. • Conducted systematic usability reviews • Delivered both audio and written evaluations • Used feedback to support model refinement • Ensured adherence to evaluation criteria

2021 - Present

Transcriptionist

OtherAudioTranscription
Transcribed and edited audio and video content with a focus on clarity and accuracy. Followed strict style and linguistic guidelines to ensure data quality for AI-related use. Reviewed and corrected outputs to maintain a high accuracy rate throughout transcription tasks. • Worked independently on remote transcription projects • Applied 98%+ accuracy standard • Edited diverse media types • Supported data integrity in language datasets

Transcribed and edited audio and video content with a focus on clarity and accuracy. Followed strict style and linguistic guidelines to ensure data quality for AI-related use. Reviewed and corrected outputs to maintain a high accuracy rate throughout transcription tasks. • Worked independently on remote transcription projects • Applied 98%+ accuracy standard • Edited diverse media types • Supported data integrity in language datasets

2019 - 2020

Education

N

N/A

Bachelor of Business Systems, Business Systems

Bachelor of Business Systems
2021

Work History

R

Rev.com

Transcriptionist

Johannesburg
2019 - 2020