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Hi, I'm Oluwatobi Adeyinka, a data annotator based in Nigeria with a focus on audio, video, and text annotation for AI training. I enjoy turning complex data into clean, useful labels and ensuring data quality across multi-modal datasets. My bilingual capabilities help me work on diverse datasets and collaborate effectively with distributed teams. I have experience evaluating model responses, building datasets, and supporting voice AI and vision model development. I'm passionate about contributing to Voice AI and data collection projects, and I bring strong attention to detail, steady communication, and time management to every project.…Hi, I'm Oluwatobi Adeyinka, a data annotator based in Nigeria with a focus on audio, video, and text annotation for AI training. I enjoy turning complex data into clean, useful labels and ensuring data quality across multi-modal datasets. My bilingual capabilities help me work on diverse datasets and collaborate effectively with distributed teams. I have experience evaluating model responses, building datasets, and supporting voice AI and vision model development. I'm passionate about contributing to Voice AI and data collection projects, and I bring strong attention to detail, steady communication, and time management to every project.

Oluwatobi Adeyinka

Data Annotator, Data Collector, Audio Transcriber, +2

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Hi, I'm Oluwatobi Adeyinka, a data annotator based in Nigeria with a focus on audio, video, and text annotation for AI training. I enjoy turning complex data into clean, useful labels and ensuring data quality across multi-modal datasets. My bilingual capabilities help me work on diverse datasets and collaborate effectively with distributed teams. I have experience evaluating model responses, building datasets, and supporting voice AI and vision model development. I'm passionate about contributing to Voice AI and data collection projects, and I bring strong attention to detail, steady communication, and time management to every project.…Hi, I'm Oluwatobi Adeyinka, a data annotator based in Nigeria with a focus on audio, video, and text annotation for AI training. I enjoy turning complex data into clean, useful labels and ensuring data quality across multi-modal datasets. My bilingual capabilities help me work on diverse datasets and collaborate effectively with distributed teams. I have experience evaluating model responses, building datasets, and supporting voice AI and vision model development. I'm passionate about contributing to Voice AI and data collection projects, and I bring strong attention to detail, steady communication, and time management to every project.

Available to hire

Hi, I’m Oluwatobi Adeyinka, a data annotator based in Nigeria with a focus on audio, video, and text annotation for AI training. I enjoy turning complex data into clean, useful labels and ensuring data quality across multi-modal datasets. My bilingual capabilities help me work on diverse datasets and collaborate effectively with distributed teams.

I have experience evaluating model responses, building datasets, and supporting voice AI and vision model development. I’m passionate about contributing to Voice AI and data collection projects, and I bring strong attention to detail, steady communication, and time management to every project.

Skills

Experience Level

Expert

Expert

Intermediate

Intermediate

Language

English

Advanced

Work Experience

Video Annotator at Micro1

January 1, 2025 - November 10, 2025

Watched and described video scenes frame by frame to support AI model training. Ensured accuracy in labeling visual content and object recognition.

Audio Data Collector at Mercor Project

January 1, 2025 - November 10, 2025

Conducted high-quality audio transcription and data labeling. Identified multiple speakers and speech characteristics for AI voice datasets.

AI Response Comparison Specialist at Freelance

January 1, 2025 - November 10, 2025

Compared model-generated text responses for clarity, tone, and contextual precision. Contributed to improving AI conversational accuracy and consistency.

Data Annotator at Hugotech

January 1, 2024 - January 1, 2024

Performed guideline-based response evaluation for LLM systems. Fine-tuned model outputs through iterative feedback. Executed image masking, labeling, and relevance ranking tasks.

Data Annotator at Pulsar

January 1, 2024 - November 10, 2025

Reviewed and rated AI-generated images for relevance to prompts.

Data Annotator at Moonvalley

January 1, 2024 - November 10, 2025

Described images and drew bounding boxes to enhance dataset precision.

Data Annotator at Hugotech

January 1, 2023 - December 31, 2024

Performed guideline-based response evaluation for LLM systems. Fine-tuned model outputs through iterative feedback. Executed image masking, labeling, and relevance ranking tasks according to project guidelines.