James Ojih

Key Skills

Software

Data Annotation Tech

Top Subject Matter

Machine Learning

Computer Vision

Stem Domain Expertise

Top Data Types

Text

Computer Code Programming

Image

Top Task Types

Classification

Object Detection

Fine-tuning

Data Collection

Freelancer Overview

Junior Data Scientist. Brings 4+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Internal, Proprietary Tooling, and Data Annotation Tech. Education includes Bachelor of Engineering, Federal University of Technology Owerri (2025). AI-training focus includes data types such as Text and labeling workflows including Evaluation, Rating, and Classification.

Labeling Experience

Junior Data Scientist

Text

Evaluated and refined AI-generated outputs to improve model performance using established quality benchmarks. Developed and maintained Python-based data pipelines for preprocessing, cleaning, and annotating ML training datasets. Collaborated with team members to ensure alignment on labeling standards and resolve dataset ambiguities. • Reviewed model outputs and identified systematic errors for correction. • Maintained consistent daily deliverables in a remote work environment. • Applied ML model behavior knowledge to identify and fix dataset issues. • Managed annotation tasks to meet project deadlines.

Evaluated and refined AI-generated outputs to improve model performance using established quality benchmarks. Developed and maintained Python-based data pipelines for preprocessing, cleaning, and annotating ML training datasets. Collaborated with team members to ensure alignment on labeling standards and resolve dataset ambiguities. • Reviewed model outputs and identified systematic errors for correction. • Maintained consistent daily deliverables in a remote work environment. • Applied ML model behavior knowledge to identify and fix dataset issues. • Managed annotation tasks to meet project deadlines.

2024 - Present

AI Data Annotator

Data Annotation TechTextClassification

Performed high-volume STEM and code annotation tasks, leveraging engineering background for precise technical labeling. Reviewed and corrected model-generated responses to improve the accuracy and quality of training data. Adapted quickly to evolving annotation schemas and tooling requirements across multiple projects. • Consistently met daily productivity and quality targets. • Applied detailed engineering and technical knowledge to annotation tasks. • Worked with a variety of annotation tools and project guidelines. • Contributed to the improvement of AI models through expert annotation.

Performed high-volume STEM and code annotation tasks, leveraging engineering background for precise technical labeling. Reviewed and corrected model-generated responses to improve the accuracy and quality of training data. Adapted quickly to evolving annotation schemas and tooling requirements across multiple projects. • Consistently met daily productivity and quality targets. • Applied detailed engineering and technical knowledge to annotation tasks. • Worked with a variety of annotation tools and project guidelines. • Contributed to the improvement of AI models through expert annotation.

2024 - 2025

Education

Work History