Maryann Onwuka

Key Skills

Software

Appen

Telus

Clickworker

iMerit

OneForma

Remotasks

Toloka

Top Subject Matter

General AI/ML data annotation

Search engine and web evaluation

Voice and speech dataset creation

Top Data Types

Image

Text

Audio

Top Task Types

Bounding Box

Transcription

Freelancer Overview

AI Data Annotator (Freelance). Core strengths include CrowdGen, Appen, and Telus. Education includes Bachelor of Science, Nnamdi Azikiwe University (2016). AI-training focus includes data types such as Image, Text, and Audio and labeling workflows including Bounding Box, Evaluation, and Rating.

Labeling Experience

AI Data Annotator (Freelance)

ImageBounding Box

As an AI Data Annotator on Crowdgen, I labeled and categorized data spanning text, image, audio, and video formats. I performed bounding box and classification image annotations for machine learning projects and reviewed annotations for quality and guideline adherence. I managed multiple annotation tasks using platform tools and workflows. • Handled structured data tagging for training models • Applied project-specific detailed labeling guidelines • Ensured annotation quality with regular reviews • Adapted to new task types and annotation tools

As an AI Data Annotator on Crowdgen, I labeled and categorized data spanning text, image, audio, and video formats. I performed bounding box and classification image annotations for machine learning projects and reviewed annotations for quality and guideline adherence. I managed multiple annotation tasks using platform tools and workflows. • Handled structured data tagging for training models • Applied project-specific detailed labeling guidelines • Ensured annotation quality with regular reviews • Adapted to new task types and annotation tools

2020 - Present

Search & Web Evaluator (Freelance)

AppenText

As a Search & Web Evaluator for Appen and TELUS AI, I assessed the relevance of search engine results and web content for user intent. I reviewed and compared outputs, followed detailed rating criteria, and flagged low-quality or misleading materials. My work ensured search and web quality for AI training purposes. • Evaluated queries and landing pages for relevance • Followed detailed project and rating guidelines • Flagged problematic or low-value content • Compared algorithmic results for accuracy

As a Search & Web Evaluator for Appen and TELUS AI, I assessed the relevance of search engine results and web content for user intent. I reviewed and compared outputs, followed detailed rating criteria, and flagged low-quality or misleading materials. My work ensured search and web quality for AI training purposes. • Evaluated queries and landing pages for relevance • Followed detailed project and rating guidelines • Flagged problematic or low-value content • Compared algorithmic results for accuracy

2021 - 2024

Data Collection & Transcription Contributor (Freelance)

ClickworkerAudioTranscription

Working as a Data Collection & Transcription Contributor, I collected field data, submitted surveys and images, and recorded voice samples. I transcribed audio recordings into structured text, verifying and preparing datasets for machine learning projects. I performed quality checks and followed context-specific project instructions. • Recorded speech samples for voice datasets • Transcribed and structured audio data • Verified and prepared data for submission • Followed task-specific guidelines for various projects

Working as a Data Collection & Transcription Contributor, I collected field data, submitted surveys and images, and recorded voice samples. I transcribed audio recordings into structured text, verifying and preparing datasets for machine learning projects. I performed quality checks and followed context-specific project instructions. • Recorded speech samples for voice datasets • Transcribed and structured audio data • Verified and prepared data for submission • Followed task-specific guidelines for various projects

2019 - 2023

Education

Work History