Joel O.

Key Skills

Software

Other

Top Subject Matter

Computer vision for autonomous vehicles

Natural language processing (NLP) training data

Speech recognition and speaker diarization

Top Data Types

Image

Text

Audio

Top Task Types

Segmentation

Classification

Transcription

Freelancer Overview

Remote Freelance Data Annotator | Outlier. Brings 1+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Other, N, and A. Education includes Bachelor of Engineering, University of Ilorin (2020) and Secondary School Education, Abeokuta Grammar School (2019). AI-training focus includes data types such as Image, Text, and Audio and labeling workflows including Segmentation, Classification, and Transcription.

Labeling Experience

Remote Freelance Data Annotator | Outlier

OtherTextClassification

Labeled text data for NLP applications used in intent classification and sentiment analysis. Ensured consistent labeling quality aligned with task guidelines. Contributed annotated text examples to improve model performance during AI training. • Applied intent classification labeling. • Applied sentiment analysis labeling. • Followed annotation guidelines for consistency. • Performed quality checks to reduce labeling errors.

2025 - Present

Remote Freelance Data Annotator | Outlier

OtherImageSegmentation

Executed complex image annotation tasks for computer vision datasets, including polygon-based labeling and semantic segmentation work. Maintained strict accuracy standards through quality assurance reviews and data integrity checks. Coordinated labeling outputs to support downstream autonomous driving and model training needs. • Labeled autonomous vehicle imagery using polygons. • Performed semantic segmentation annotations. • Conducted QA reviews to ensure label accuracy. • Supported dataset preparation for AI training pipelines.

2025 - Present

Remote Freelance Data Annotator | Atlas

OtherImageClassification

Categorized large-scale image datasets to improve search engine relevance and content moderation. Ensured labeled outputs matched the expected category definitions. Assisted in preparing data for AI training and quality review processes. • Performed image categorization for search relevance. • Labeled images for content moderation. • Maintained consistency with annotation guidelines. • Supported dataset labeling for model training.

2024 - 2025

Remote Freelance Data Annotator | Atlas

OtherTextClassification

Categorized large-scale text datasets to improve search relevance and support content moderation efforts. Labeled and organized data according to predefined categories and quality expectations. Helped refine training data to enhance model effectiveness. • Performed text categorization for search relevance. • Labeled data for content moderation workflows. • Followed guideline-based classification standards. • Contributed to dataset organization for training use.

2024 - 2025

Remote Freelance Data Annotator | Atlas

OtherAudioTranscription

Provided high-fidelity audio transcription and speaker identification to support speech recognition models. Produced accurate labeled audio segments suitable for training and evaluation. Ensured annotation correctness to maintain reliability for downstream AI pipelines. • Completed audio transcription for speech recognition. • Labeled speaker identity for identification tasks. • Applied task-specific labeling instructions. • Performed checks to maintain transcription quality.

2024 - 2025

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Education

Work History