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Nosisi Dlamini

Nosisi Dlamini

AI Data Trainer - Education & Linguistics

SWAZILAND flag
Mbabane, Swaziland
$70.00/hrExpertInternal Proprietary Tooling

Key Skills

Software

Internal/Proprietary Tooling

Top Subject Matter

No subject matter listed

Top Data Types

VideoVideo

Top Label Types

RLHF

Freelancer Overview

I am an AI data trainer and language specialist with over 25 years of experience in linguistic analysis, data annotation, and AI training across education and NLP domains. My expertise includes phonetic and phonological transcription, emotion and intent labeling, grammar and semantic evaluation, and the detailed annotation of audio, video, and text data for model training and quality assurance. I have developed and evaluated custom GPTs, designed annotation protocols for large-scale assessment projects, and provided linguistic feedback to improve AI model outputs for accuracy, tone, and bias. My background as a Cambridge Assessment Examiner and academic researcher has equipped me with a meticulous attention to detail and a deep understanding of language use in diverse contexts, making me highly effective in ensuring the quality and reliability of AI training datasets.

ExpertEnglishZuluXhosa

Labeling Experience

Expert RLHF Evaluation & Side-by-Side (SxS) Linguistic Analysis

Internal Proprietary ToolingVideoRLHF
I transcribe and diarise audio and video content with a focus on capturing the full texture of human speech, including speaker identity, vocal delivery, emotional tone, pitch, and regional accent. I identify linguistic edge cases that cause model failure, evaluate model outputs for factual accuracy, tone, and bias, and deliver structured analytical reports that support the alignment of large language models.

I transcribe and diarise audio and video content with a focus on capturing the full texture of human speech, including speaker identity, vocal delivery, emotional tone, pitch, and regional accent. I identify linguistic edge cases that cause model failure, evaluate model outputs for factual accuracy, tone, and bias, and deliver structured analytical reports that support the alignment of large language models.

2025

Education

U

University of the Western Cape

Post-Graduate Diploma, E-Skills Development, Immersive Technologies

Post-Graduate Diploma
2020 - 2020
U

University of KwaZulu-Natal

Doctor of Philosophy, Education, English Language

Doctor of Philosophy
2018 - 2018

Work History

D

Digital Wisdom Hub

Founder & AI Integration Consultant

Remote
2024 - Present
C

Cambridge Assessment International Education

Assessment Specialist

Cambridge
2021 - Present