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Nahason Mangera

Nahason Mangera

Skilled data labeler specializing in image, text, and video annotation

Kenya flagNairobi, Kenya
$15.00/hrExpertAws SagemakerAnno MageAppen

Key Skills

Software

AWS SageMakerAWS SageMaker
Anno-MageAnno-Mage
AppenAppen
ArgillaArgilla
Axiom AI
ClickworkerClickworker
CloudFactoryCloudFactory
CrowdFlowerCrowdFlower
CrowdSourceCrowdSource
CVATCVAT
Data Annotation TechData Annotation Tech
DataloopDataloop
DatatroniqDatatroniq
DatumboxDatumbox
DatasaurDatasaur
DatatureDatature
DataturkDataturk
Deep SystemsDeep Systems
DiffgramDiffgram
DoccanoDoccano
EncordEncord
Figure EightFigure Eight
Google Cloud Vertex AIGoogle Cloud Vertex AI
HastyHasty
HiveMindHiveMind
HumanaticHumanatic
iMeritiMerit
Img Lab
Kili TechnologyKili Technology
LabelboxLabelbox
LabelImgLabelImg
Label StudioLabel Studio
LightTagLightTag
LionbridgeLionbridge
Mighty AIMighty AI
MindriftMindrift
OneFormaOneForma
OpenCV AI Kit (OAK)OpenCV AI Kit (OAK)
PlaymentPlayment
ProdigyProdigy
RemotasksRemotasks
Scale AIScale AI
Trilldata Technologies
V7 LabsV7 Labs
Internal/Proprietary Tooling

Top Subject Matter

No subject matter listed

Top Data Types

AudioAudio
ImageImage
VideoVideo

Top Task Types

Audio Recording
Data Collection
Emotion Recognition
Evaluation Rating
Translation Localization

Freelancer Overview

I have hands-on experience in creating, refining, and validating high-quality training data for AI systems across diverse domains, including image, text, and video annotation. My expertise spans tasks such as object detection, semantic segmentation, entity recognition, and text classification, ensuring datasets are both accurate and consistent for machine learning models. I am adept at using various annotation tools, following strict labeling guidelines, and maintaining efficiency without compromising quality. What sets me apart is my attention to detail, adaptability across projects, and strong understanding of how precise labeling impacts AI performance. I have contributed to projects involving computer vision for autonomous systems, natural language processing for chatbots, and content moderation models, giving me a versatile foundation in data annotation. My ability to quickly learn new labeling frameworks and apply quality assurance practices allows me to deliver reliable datasets that strengthen AI development.

ExpertSwahiliFrenchEnglishSpanish

Labeling Experience

No Data Labeling experience added

Nahason M. hasn’t added any AI Training or Data Labeling experience to their OpenTrain profile yet.

Education

No Education added yet

Nahason M. hasn’t added any Education History to their OpenTrain profile yet.

Work History

No Work History added yet

Nahason M. hasn’t added any Work History to their OpenTrain profile yet.