Sandra N.

Key Skills

Software

Appen

Top Subject Matter

Computer Vision

Legal Services & Contract Review

Regulatory Compliance & Risk Analysis

Top Data Types

Image

Text

Document

Top Task Types

Bounding Box

Freelancer Overview

Data Contributor (Image Annotation). Brings 1+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Appen. Education includes Master of Education, University of Lagos. AI-training focus includes data types such as Image and labeling workflows including Bounding Box.

Labeling Experience

Data Contributor (Image Annotation)

AppenImageBounding Box

I performed image annotation and data labeling tasks focused on computer vision projects. My work involved drawing bounding boxes and polygons to identify and classify objects in diverse image datasets. I consistently achieved high accuracy rates and followed strict project guidelines. • Used CVAT, LabelBox, and Appen platform for efficient annotation and QA • Contributed to dataset quality for machine learning model training • Managed large volumes of annotated data within short deadlines • Effectively collaborated with project managers to ensure compliance

Present

Education

Work History