Looks like you have JavaScript disabled. For the full Twine experience, you will need to re-enable it.

I’m an AI Data Labeler and Data Quality Analyst with 3+ years of experience working in Human-in-the-Loop (HITL) environments across text, image, audio, video, and PDF datasets. I’ve completed 10,000+ annotation and evaluation tasks across 50+ projects, helping teams build high-quality ground-truth data for reliable model training and improvement.…

OLUWATOSIN SULAIMON HAMMED

Data Annotator, Data Collector, AI Trainer, +2





I’m an AI Data Labeler and Data Quality Analyst with 3+ years of experience working in Human-in-the-Loop (HITL) environments across text, image, audio, video, and PDF datasets. I’ve completed 10,000+ annotation and evaluation tasks across 50+ projects, helping teams build high-quality ground-truth data for reliable model training and improvement.…

Available to hire

I’m an AI Data Labeler and Data Quality Analyst with 3+ years of experience working in Human-in-the-Loop (HITL) environments across text, image, audio, video, and PDF datasets. I’ve completed 10,000+ annotation and evaluation tasks across 50+ projects, helping teams build high-quality ground-truth data for reliable model training and improvement.

Skills

Experience Level

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Fluent

German

Beginner

Work Experience

PDF Specialist at SME Careers

January 1, 2025 - Present

Created structured PDF outputs using bounding box annotation workflows. Labeled and organized content types such as text blocks, headings, tables, and images to prepare clean training-ready datasets. Maintained consistency and accuracy in line with project guidelines.

Platform Support Specialist / CX Analyst at Destiny&Co Travel Agency

January 1, 2024 - December 31, 2025

Provided customer support for booking, account, and platform issues via chat, email, and phone within a remote team. Investigated account, billing, and product problems to identify root causes and prioritize lasting fixes. Delivered user training sessions using plain-language guidance to improve adoption. Managed ticketing and documentation using Zendesk, Intercom, and Shopify, collaborating with cross-functional teams to inform process improvements based on user feedback.

Audio Transcriptionist at TransPerfect

January 1, 2024 - December 31, 2025

Transcribed audio content into accurate written text while preserving spoken meaning and following project-specific formatting and style requirements.

Data Annotator at E2F

January 1, 2024 - December 31, 2025

Completed data annotation and labeling tasks aligned with project-specific guidelines and quality standards for AI model training.

Data Annotator at Mindrift

January 1, 2023 - Present

Performed pairwise comparisons of AI-generated outputs using structured rubrics covering visual design, functionality, and instruction-following to produce clear evaluation verdicts. Evaluated SERPs for relevance and quality against project guidelines. Conducted application testing and documented functional issues and inconsistencies. Supported Turkish e-commerce search relevance/product listing judgments with market- and language-specific criteria.

Data Annotator at Otaku Hugo

January 1, 2023 - Present

Worked on AI training and evaluation tasks including computer vision annotation, external search relevance evaluation, web preference judging, 3D rendering assessment, video ads rating, SERP evaluation, and AI character consistency review. Reviewed labeled outputs against project guidelines and source data across video, text, image, and audio datasets. Identified inconsistencies and errors, provided actionable feedback to correct root causes, and enforced annotation protocols and QA standards across concurrent workflows. Mentored annotators and clarified guidelines to improve agreement and consistency across a distributed team.