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Williams Uzokwe

@williamsuzokwe

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AI data annotator working on text, audio, and image/video annotation, with experience evaluating AI-generated outputs.

Nigeria

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What I'm looking for

I’m looking for remote, flexible freelance work on short- or long-term projects involving language, data annotation, and AI training or evaluation.

In my current freelance AI Data Annotator work, I annotate text, audio, and image/video data, and review AI-generated outputs for accuracy and quality. I also check completed annotations against project guidelines.

Previously, I contributed language and data work to Save the Children’s GPE refugee project, reviewing content for linguistic accuracy and cultural fit. At Palladium Group / DataFI / Center for Clinical Care & Clinical Research in Nigeria (CCCRN) – ICHSSA 1 Project, I collected, cleaned, and validated data using KoboToolbox/ODK and Google Sheets.

Experience

Work history, roles, and key accomplishments

Current

AI Data Annotator

Current

Freelance

Nov 2025 - Present (11 months)

Performed text annotation, transcription, sound classification, model evaluation, timestamping, image/video annotation, and quality control for AI training projects.

Text Annotation Sentiment Analysis Named Entity Recognition Transcription Audio Classification Model Evaluation Time Stamping Image Annotation Video Annotation Bounding Boxes Polygon Semantic Segmentation Quality Control

Freelance Language & Data Contributor

Save the Children

Apr 2024 - Oct 2025 (1 year 6 months)

Gathered content across GPE project communities, reviewed and evaluated written content for clarity and linguistic accuracy, and annotated text data following guidelines.

Content Acquisition Content Review Text Annotation Quality Assurance Cultural Accuracy Review Digital Tools Remote Collaboration

Volunteer School Teacher

University of Uyo

Jan 2023 - Dec 2024 (1 year 11 months)

Motivated and encouraged students, assisted with marking and correcting work, and supported lesson preparation and classroom management.

Teaching Student Motivation Markings Lesson Planning Classroom Management

Data Personnel / Data Quality Assessor

Palladium Group

Nov 2024 - Dec 2024 (1 month)

Collected, entered, and verified quantitative and qualitative data from surveys and field activities, ensuring accuracy and completeness through validation and cross-checks.

Data Collection Data Entry Data Validation KOBOToolbox ODK Google Sheets Data Cleaning Reporting Confidentiality Data Protection

Data Entry Clerk / Field Enumerator

Heal the Land Initiative

Feb 2021 - May 2024 (3 years 3 months)

Entered large volumes of data within strict timelines, conducted interviews, administered questionnaires, and reviewed forms for errors before submission.

Data Entry Interviewing Questionnaire Administration Data Verification Collaboration Data Backup Documentation