Sanele Cele

Key Skills

Software

Labelbox

Top Subject Matter

No subject matter listed

Top Data Types

Audio

Document

Image

Text

Video

Top Task Types

Action Recognition

Data Collection

Point/Key Point

Question Answering

Text Generation

Text Summarization

Transcription

Freelancer Overview

I bring over a decade of experience in structured data extraction, workflow simulation, and AI training data annotation, with a strong focus on maintaining data integrity and quality. My recent work as a Data Annotator involves evaluating AI-generated outputs, providing precise feedback, and labeling complex datasets for machine learning models, particularly in business and professional communication domains. I am highly skilled in RLHF, prompt engineering, and fact-checking, and have leveraged tools like Monday.com, Excel, and Power BI to automate and optimize processes. My background in managing international B2B operations has honed my attention to detail and ability to synthesize information from diverse sources, ensuring that training data is accurate, contextually relevant, and aligned with real-world workflows.

Labeling Experience

Annotator

LabelboxDocumentQuestion AnsweringText Generation

Annotated diverse datasets (text, code, prompts) for AI model training, ensuring high-quality labels to enhance accuracy and reduce biases. Performed prompt engineering, content evaluation, and debugging tasks, contributing to scalable ML datasets with rapid turnaround (high completion rates)

Annotated diverse datasets (text, code, prompts) for AI model training, ensuring high-quality labels to enhance accuracy and reduce biases. Performed prompt engineering, content evaluation, and debugging tasks, contributing to scalable ML datasets with rapid turnaround (high completion rates)

2025 - 2025

Education

Work History