Kiyemba I.

Key Skills

Software

Labelbox

CVAT

Scale AI

Top Subject Matter

Machine learning training datasets (NLP and computer vision)

Sentiment analysis

Ner Domain Expertise

Top Data Types

Text

Image

Video

Audio

Document

Top Task Types

Segmentation

Entity (NER) Classification

Freelancer Overview

Senior Data Labelling & Annotation Specialist — DataVault AI Inc. (USA) — Remote. Core strengths include Labelbox, CVAT, and Scale AI. Education includes Bachelor of Information Systems and Technology, Makerere University (2021). AI-training focus includes data types such as Text, Image, and Video and labeling workflows including Segmentation and Entity (NER) Classification.

Labeling Experience

Senior Data Labelling & Annotation Specialist — DataVault AI Inc. (USA) — Remote

LabelboxTextSegmentation

Annotated and labeled large-scale datasets for NLP and computer vision model training across multiple modalities. Performed bounding box, polygon, semantic segmentation, and keypoint annotation while following project guidelines. Completed quality assurance reviews to maintain annotation accuracy above 98% for assigned work. • Labeled 500,000+ data points across text, image, audio, and video datasets • Used Labelbox, Scale AI, and CVAT for bounding box, polygon, semantic segmentation, and keypoint labeling • Conducted QC/QA to ensure high accuracy across projects • Collaborated to refine annotation guidelines and edge-case protocols

2023 - Present

Data Annotation Specialist & Virtual Assistant — NexGen Solutions LLC (USA) — Remote

TextEntity (NER) Classification

Annotated training datasets to support AI model development for sentiment analysis, named entity recognition, and image classification. Assisted with operational tasks as a virtual assistant, including scheduling and deadline coordination across time zones. Maintained organized annotation logs and trackers and performed quality checks during annotator onboarding. • Labeled data for sentiment analysis, NER, and image classification tasks • Supported annotation onboarding with training materials and quality checks • Used Google Workspace and Microsoft 365 to maintain data logs and annotation trackers • Followed data confidentiality and privacy/compliance requirements

2022 - 2023

Education

Work History