Queeneth Ndubuisi

Key Skills

Software

Appen

Telus

Sama

Top Subject Matter

AI Annotation and Data Labelling

Generative AI

English Language

Top Data Types

Text

Audio

Image

Top Task Types

Classification

RLHF

Text Summarization

Question Answering

Evaluation/Rating

Data Collection

Freelancer Overview

AI Data Annotator | Generalist English AI Trainer. Brings 5+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Appen, Telus, and Sama. Education includes Bachelor of Science, University of Abuja (2021) and Master of Science, University of Technology, Owerri (2019). AI-training focus includes data types such as Text and labeling workflows including Evaluation, Rating, and Classification.

Labeling Experience

AI Data Annotator | Generalist English AI Trainer

AppenText

As an AI Data Annotator and Generalist English AI Trainer, I annotated and evaluated English text data for NLP and generative AI model training. My responsibilities included reviewing AI-generated text outputs for content quality, ranking responses, and ensuring strict guideline compliance. I contributed to model improvement and reliability in a remote, cross-functional environment. • Labeled and ranked AI-generated text for response quality and relevance. • Conducted guideline compliance reviews to maintain annotation consistency. • Collaborated with other annotators and trainers remotely. • Enhanced training datasets for generative and NLP models.

As an AI Data Annotator and Generalist English AI Trainer, I annotated and evaluated English text data for NLP and generative AI model training. My responsibilities included reviewing AI-generated text outputs for content quality, ranking responses, and ensuring strict guideline compliance. I contributed to model improvement and reliability in a remote, cross-functional environment. • Labeled and ranked AI-generated text for response quality and relevance. • Conducted guideline compliance reviews to maintain annotation consistency. • Collaborated with other annotators and trainers remotely. • Enhanced training datasets for generative and NLP models.

2023 - Present

Quality Assurance Analyst – AI Data

TelusText

As a Quality Assurance Analyst for AI data, I performed QA reviews on annotated text datasets to verify accuracy and consistency. I ensured all annotations adhered strictly to established guidelines and standards. My QA efforts improved data quality and supported effective AI model training. • Analyzed and reviewed completed training datasets for correctness. • Flagged annotation errors and provided actionable feedback to annotation teams. • Ensured all tasks met internal and client-driven compliance standards. • Enhanced dataset reliability and impact for downstream model development.

As a Quality Assurance Analyst for AI data, I performed QA reviews on annotated text datasets to verify accuracy and consistency. I ensured all annotations adhered strictly to established guidelines and standards. My QA efforts improved data quality and supported effective AI model training. • Analyzed and reviewed completed training datasets for correctness. • Flagged annotation errors and provided actionable feedback to annotation teams. • Ensured all tasks met internal and client-driven compliance standards. • Enhanced dataset reliability and impact for downstream model development.

2022 - Present

AI Data Annotator

SamaTextClassification

In my role as an AI Data Annotator, I labeled and classified text data for sentiment, intent, and language understanding tasks. I supported machine learning development by ensuring all training data was accurately annotated. My contributions enhanced AI models for language comprehension and analysis. • Performed sentiment, intent, and language classification on diverse text datasets. • Maintained high annotation quality in line with company standards. • Collaborated with team members to resolve ambiguities in data labeling. • Delivered well-organized and verified datasets for model development.

In my role as an AI Data Annotator, I labeled and classified text data for sentiment, intent, and language understanding tasks. I supported machine learning development by ensuring all training data was accurately annotated. My contributions enhanced AI models for language comprehension and analysis. • Performed sentiment, intent, and language classification on diverse text datasets. • Maintained high annotation quality in line with company standards. • Collaborated with team members to resolve ambiguities in data labeling. • Delivered well-organized and verified datasets for model development.

2021 - 2022

Education

Work History