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Ziyanda E.

Ziyanda E.

AI Evaluator, Invisible Technologies (2019 – 2021)

South Africa flagcape town, South Africa

Key Skills

Software

Internal/Proprietary Tooling

Top Subject Matter

LLM evaluation and AI output quality assurance
Technology & Digital Platforms
Software Quality Assurance (QA)

Top Data Types

TextText
ImageImage
VideoVideo

Top Task Types

RLHFRLHF
Red TeamingRed Teaming
Evaluation/RatingEvaluation/Rating
Data CollectionData Collection
Prompt + Response Writing (SFT)Prompt + Response Writing (SFT)
Fine-tuningFine-tuning
Text GenerationText Generation
Object DetectionObject Detection
ClassificationClassification

Freelancer Overview

I worked as an Advanced AI Trainer, supporting large-scale AI training and data annotation projects focused on improving model accuracy, reasoning, and response quality. A big part of my role involved reviewing and labeling AI-generated outputs, comparing multiple responses, ranking them based on relevance and correctness, and identifying hallucinations, bias, formatting issues, and factual inconsistencies. I also worked extensively with prompt-response evaluation tasks, text classification, content moderation, and quality assurance reviews to ensure annotation standards were consistently met across datasets. Because many of the projects evolved quickly, I became very good at interpreting detailed guidelines, adapting to changing requirements, and making consistent judgment calls on nuanced language and edge-case scenarios. What really strengthened my experience was the quality-focused nature of the work. I wasn’t just labeling data mechanically; I was actively evaluating how models reasoned, where responses broke down, and how training data could be improved to produce more reliable outputs. I regularly handled high-volume review queues while maintaining strong accuracy metrics and turnaround times, and I often caught inconsistencies or guideline gaps that needed clarification before data could be finalized. My background in QA engineering also helped a lot because I naturally approach AI evaluation with a testing mindset: I pay attention to patterns, edge cases, logical failures, and overall output quality. That combination of AI training experience, analytical thinking, and detail-oriented review work has made me very comfortable working on complex annotation and model evaluation tasks.

Education

U

University Of Witswatersrand

Bachelor of Commerce, Business

Bachelor of Commerce
2018 - 2022

Work History

D

Delek Homes

Software Quality Engineer

N/A
2023 - Present
D

Delek Homes

QA Automation Engineer

N/A
2020 - 2022