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Marjorie Muloma

Marjorie Muloma

AI Data Annotator

KENYA flag
Nairobi, Kenya
$5.00/hrExpertCVATLabelimgSupervisely

Key Skills

Software

CVATCVAT
LabelImgLabelImg
SuperviselySupervisely
LabelboxLabelbox
DoccanoDoccano
ProdigyProdigy
RemotasksRemotasks
Surge AISurge AI
TolokaToloka
Label StudioLabel Studio
Scale AIScale AI
CloudFactoryCloudFactory

Top Subject Matter

Technology & AI Companies
Autonomous Vehicles / Robotics
E-commerce & Retail

Top Data Types

ImageImage
VideoVideo
TextText

Top Task Types

Bounding Box
Polygon
Segmentation
Classification
Entity Ner Classification
Point Key Point
Cuboid
Object Detection
Text Generation
Polyline
Question Answering
Text Summarization
RLHF
Prompt Response Writing SFT
Data Collection
Computer Programming Coding
Evaluation Rating
Transcription
Red Teaming
Fine Tuning
Function Calling

Freelancer Overview

I have experience working as a Data Labeling and Annotation Specialist, supporting AI and machine learning model development through accurate labeling of image, text, and document datasets. My work includes image annotation using bounding boxes and object tagging, text classification, sentiment analysis, and named entity recognition (NER). I consistently follow detailed annotation guidelines to ensure high accuracy, consistency, and quality across datasets, while meeting productivity targets and maintaining strict data confidentiality standards. What sets me apart is my strong technical background in computer technology and enterprise data systems. My experience in data validation, log analysis, and data integrity verification has strengthened my attention to detail and quality assurance skills. I am comfortable working with tools such as CVAT, LabelImg, Labelbox, Doccano, and spreadsheet-based datasets, and I bring a structured, analytical approach to reviewing and improving training data to enhance overall AI model performance.

ExpertSwahiliEnglish

Labeling Experience

Data Annotator

TextClassification
In this project, I worked as a Data Annotator on a text classification dataset designed to train and improve a natural language processing (NLP) model. The dataset consisted of short text entries, including customer feedback, product reviews, and general user-generated content. My primary responsibility was to accurately classify each text sample into predefined categories such as positive, negative, neutral sentiment, or topic-based classes according to detailed annotation guidelines. I carefully reviewed each text entry to understand context, tone, and intent before assigning the appropriate label. I handled ambiguous cases by applying guideline rules consistently and flagging uncertain samples for review when necessary. In addition to labeling, I performed quality checks to ensure consistency and accuracy across batches. My contributions helped improve the quality and reliability of the training dataset, supporting the development of a more accurate and robust AI model.

In this project, I worked as a Data Annotator on a text classification dataset designed to train and improve a natural language processing (NLP) model. The dataset consisted of short text entries, including customer feedback, product reviews, and general user-generated content. My primary responsibility was to accurately classify each text sample into predefined categories such as positive, negative, neutral sentiment, or topic-based classes according to detailed annotation guidelines. I carefully reviewed each text entry to understand context, tone, and intent before assigning the appropriate label. I handled ambiguous cases by applying guideline rules consistently and flagging uncertain samples for review when necessary. In addition to labeling, I performed quality checks to ensure consistency and accuracy across batches. My contributions helped improve the quality and reliability of the training dataset, supporting the development of a more accurate and robust AI model.

2022 - Present

Education

T

The Technical University of Kenya

Bachelor of Technology, Computer Technology, Bachelor of Technology, Computer Technology

Bachelor of Technology, Computer Technology
2018 - 2023

Work History

G

Genome Technologies Limite

Data Analyst/Cybersecurity Consultant

Nairobi
2024 - Present