David O.

Key Skills

Software

Don't disclose

Other

Top Subject Matter

AI data annotation guidelines

content evaluation

dataset quality review

Top Data Types

Computer Code Programming

Text

Top Task Types

Bounding Box

Segmentation

Classification

Entity (NER) Classification

Object Detection

Text Generation

Freelancer Overview

Freelancing — AI Data Annotator / Training Contributor (Data Annotation & AI guidelines). Brings 3+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Don't disclose and Other. Education includes Bachelor of Science, Federal University of Technology Akure (2024) and UX Design, Coursera (Google) (2022). AI-training focus includes data types such as Text and labeling workflows including Evaluation and Rating.

Labeling Experience

Playlabs — Training/validation contributor for interface behavior and system logic (user-ready evaluation)

OtherText

Contributed to AI/data-related quality work by researching, validating, and refining interface behavior and system logic through iterative review cycles. Conducted usability testing and edge-case analysis to improve reliability and clarity of outputs, aligning recommendations with user-ready requirements. Collaborated with cross-functional teams to review, refine, and validate behavior, ensuring consistency of evaluated results. • Validated interface behavior and system logic through research and reviews • Performed usability testing and edge-case analysis to assess quality • Iteratively refined interface/system responses based on findings • Collaborated with teams to ensure reliable, clear output behavior

2025 - Present

Freelancing — AI Data Annotator / Training Contributor (Data Annotation & AI guidelines)

Don't discloseText

Worked as an AI Data Annotator and training contributor performing evaluation and validation tasks for text, datasets, and digital content. Followed detailed data annotation and AI guidelines to ensure consistent, high-quality outputs across multiple project types. Maintained strict accuracy and performance standards while adapting to new workflows and tools in a fast-paced remote environment. • Evaluated and reviewed text and dataset content for quality and consistency • Validated outputs against provided AI/data annotation guidelines • Performed quality assurance across research, data analysis, content evaluation, and evaluation tasks • Managed multiple assignments simultaneously while meeting deadlines

2024 - Present

Pisi Integrated Service — design evaluation support with A/B testing outcomes

OtherText

Supported evaluation-oriented AI training/quality activities indirectly through systematic A/B testing and iterative usability-driven refinement of product experiences. Participated in refining high-fidelity designs based on iterative testing and stakeholder feedback, translating findings into reliable user outcomes. Collaborated with developers to ensure accurate implementation of specifications that were validated through experiments. • Conducted A/B testing to measure improvements (e.g., user retention impact) • Refined designs using iterative testing and stakeholder feedback • Worked with developers to ensure specification-accurate implementation • Used evaluation results to guide improvements in user experience

2024 - 2024

I have ai training experience working with outlier, data annotation and on prolific

I have ai training experience working with outlier, data annotation and on prolific

Not specified

Education

Work History