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Brian Murenga

Brian Murenga

Data Labeling / Annotation Specialist (Freelance)

Kenya flagNairobi, Kenya
$100.00/hrIntermediateLabelboxSuperviselyCVAT

Key Skills

Software

LabelboxLabelbox
SuperviselySupervisely
CVATCVAT

Top Subject Matter

General AI / Machine Learning
AI Model Training/Text Data

Top Data Types

ImageImage
TextText
AudioAudio

Top Task Types

Bounding BoxBounding Box
ClassificationClassification
SegmentationSegmentation

Freelancer Overview

Data Labeling / Annotation Specialist (Freelance). Core strengths include Labelbox and Supervisely. AI-training focus includes data types such as Image and Text and labeling workflows including Bounding Box and Classification.

IntermediateEnglish

Labeling Experience

Text labelling

TextText Generation
Work on an AI Computer vision project where i labeled images for object detection

Work on an AI Computer vision project where i labeled images for object detection

2025 - Present
Labelbox

Data Labeling / Annotation Specialist (Freelance)

LabelboxImageBounding Box
Annotated diverse datasets including images, text, and audio to train and validate machine learning models. Applied bounding boxes, polygons, and classification tags while adhering to strict annotation guidelines. Conducted quality control processes and reviewed labeled data to maintain accuracy standards. • Image, text, and audio annotation for AI development • Used CVAT, Labelbox, and Supervisely platforms • Tasks included object detection, sentiment analysis, and entity recognition • Worked remotely, meeting deadlines and targets

Annotated diverse datasets including images, text, and audio to train and validate machine learning models. Applied bounding boxes, polygons, and classification tags while adhering to strict annotation guidelines. Conducted quality control processes and reviewed labeled data to maintain accuracy standards. • Image, text, and audio annotation for AI development • Used CVAT, Labelbox, and Supervisely platforms • Tasks included object detection, sentiment analysis, and entity recognition • Worked remotely, meeting deadlines and targets

Present
Supervisely

AI Training Data Contributor

SuperviselyTextClassification
Contributed to AI model training by performing data categorization and labeling for supervised learning projects. Ensured alignment with provided guidelines and collaborated to maintain high labeling quality. Assisted in the preparation of clean and accurate datasets for machine learning. • Focused on text and dataset labeling tasks • Performed data QA and validation • Supported remote project work and met quality metrics • Used annotation tools as required by client projects

Contributed to AI model training by performing data categorization and labeling for supervised learning projects. Ensured alignment with provided guidelines and collaborated to maintain high labeling quality. Assisted in the preparation of clean and accurate datasets for machine learning. • Focused on text and dataset labeling tasks • Performed data QA and validation • Supported remote project work and met quality metrics • Used annotation tools as required by client projects

Not specified

Education

M

Meru University

Degree, Meru

Degree
2022 - 2026

Work History

F

Freelance

AI Data Labeling Specialist

Nairobi
2025 - 2026