Henry C.

Key Skills

Software

Other

Top Subject Matter

Machine Learning training datasets (image, text, video)

QA and data integrity.

Natural language processing (NLP) and computer vision datasets with QA feedback.

Top Data Types

Image

Text

Video

Top Task Types

Segmentation

Entity (NER) Classification

Freelancer Overview

Data Annotation Specialist — AI Solutions Hub (London, UK). Brings 8+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Other. Education includes Bachelor of Arts, University of London (2019). AI-training focus includes data types such as Image, Text, and Video and labeling workflows including Segmentation and Entity (NER) Classification.

Labeling Experience

Data Annotation Specialist — AI Solutions Hub (London, UK)

OtherImageSegmentation

Performed high-volume AI dataset annotation across image, text, and video modalities for machine learning model training. Ensured labeled data accuracy and consistency by following strict project guidelines and quality metrics. Collaborated with AI engineers to refine annotation instructions to improve training data quality. • Annotated and categorized complex datasets using dedicated annotation platforms. • Performed consistency checks against project requirements and quality targets. • Helped iterate annotation instructions to better match model training needs. • Segmented/categorized content to support supervised learning pipelines.

2024 - Present

Junior Data Labeler — Tech Innovations Lab (London, UK)

OtherTextEntity (NER) Classification

Labeled and reviewed diverse AI application datasets with a focus on natural language processing and computer vision. Identified and corrected inconsistencies in labeled data to improve model accuracy. Participated in quality assurance processes by providing feedback on annotation guidelines and tool functionality. • Supported consistency validation during labeling and review cycles. • Delivered high productivity while adhering to data privacy and security protocols. • Provided feedback to improve annotation guidelines and annotation tool usability. • Contributed labeled outputs used for model training and evaluation.

2022 - 2024

Education

Work History