Ajibola O.

Key Skills

Software

Other

Top Subject Matter

Machine learning training data annotation

text classification and data categorization

Quality-focused data entry and document/content review for client deliverables

Top Data Types

Text

Image

Top Task Types

Classification

Freelancer Overview

Data Analytics & AI Tutor (Annotation Focus) — Annotation review, feedback, and dataset curation (Jan 2024–Present). Brings 10+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Internal, Proprietary Tooling, and Other. Education includes Bachelor of Science, Obafemi Awolowo University (2024) and Data Analytics Certificate, Digital World Academy (2023). AI-training focus includes data types such as Text and labeling workflows including Classification, Evaluation, and Rating.

Labeling Experience

Data Analytics & AI Tutor (Annotation Focus) — Annotation review, feedback, and dataset curation (Jan 2024–Present)

TextClassification

Produced and reviewed text classification labels for machine learning exercises, ensuring adherence to rubric guidelines and annotation standards. Checked student outputs for labeling consistency, accuracy, and rule compliance while mirroring real-world QA workflows in annotation pipelines. Curated model-ready training datasets by applying cleaning and formatting best practices to support downstream ML training. • Labeled and validated text categorization and pattern identification tasks using structured exercises. • Provided detailed written feedback to flag errors and enforce consistent labeling across cohorts. • Resolved annotation disagreements by referencing and updating guidelines to improve inter-student agreement. • Monitored quality and consistency trends across 20+ students per cohort.

2024 - Present

Office Assistant — High-volume data entry and content review with emphasis on accuracy (Jan 2017–Dec 2022)

OtherText

Performed detail-intensive content review and data entry work that supported accuracy and consistency of provided materials. Managed client requests requiring precise interpretation of instructions and delivery of error-free outputs. While not explicitly labeled as AI/ML annotation, the work involved repetitive, quality-focused review tasks aligned with instruction-following and consistency principles. • Reviewed and formatted documents and content with high accuracy. • Interpreted complex client requirements to deliver consistent outputs. • Maintained attention to detail under high-volume repetitive workloads. • Ensured error-free delivery through quality checks prior to client handoff.

2017 - 2022

Education

Work History