Samwel O.

Key Skills

Software

Labelbox

Other

Top Subject Matter

Computer Vision

Natural Language Processing (NLP)

Top Data Types

Image

Text

Top Task Types

Bounding Box

Entity (NER) Classification

Freelancer Overview

Lead Data Annotation Specialist. Brings 4+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Labelbox and Other. Education includes Bachelor of Arts, Egerton University (2021). AI-training focus includes data types such as Image and Text and labeling workflows including Bounding Box and Entity (NER) Classification.

Labeling Experience

Lead Data Annotation Specialist

OtherTextEntity (NER) Classification

I managed and completed labeling projects for natural language datasets with an emphasis on sentiment analysis, Named Entity Recognition, and intent classification. My work ensured reliable data categorization for robust NLP model training. I was responsible for optimizing project workflows and ensuring structured formatting across text-based tasks. • Executed NER and sentiment analysis labeling on various text samples • Utilized proprietary or advanced cloud-based annotation tools • Collaborated to revise guidelines for improved annotation consistency • Documented procedures to guarantee high-quality labeled text data

2024 - Present

Lead Data Annotation Specialist

LabelboxImageBounding Box

As a Lead Data Annotation Specialist, I transformed unstructured image and video data into structured, high-quality labeled datasets to train AI-driven computer vision models. I performed bounding box and segmentation labeling at a consistent accuracy rate above 98%. I collaborated with engineering teams to refine guidelines and managed end-to-end data pipelines for large-scale projects. • Applied both bounding box and segmentation methods for diverse image sets • Used advanced industry-standard annotation tools to ensure precision • Maintained rigorous quality assurance processes to exceed client benchmarks • Aligned annotation objectives with evolving AI model requirements

2024 - Present

Education

Work History