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Gerald Maina

Gerald Maina

Data Annotator

Kenya flagNairobi, Kenya
ExpertCloudfactoryRemotasksSama

Key Skills

Software

CloudFactoryCloudFactory
RemotasksRemotasks
SamaSama
AppenAppen

Top Subject Matter

Sports Image Annotation
General Image and Video Annotation
General Image Object Detection and Classification

Top Data Types

ImageImage

Top Task Types

Bounding BoxBounding Box
ClassificationClassification

Freelancer Overview

Data Annotator. Core strengths include CloudFactory, Remotasks, and Sama. Education includes Certificate, N/A (2024). AI-training focus includes data types such as Image and labeling workflows including Bounding Box and Classification.

Expert

Labeling Experience

CloudFactory

Data Annotator

CloudfactoryImageBounding Box
In this role, I labeled images using bounding boxes for AI model training. I annotated sports datasets, specifically focusing on moving objects in dynamic scenes. I maintained high accuracy, consistency, and performed error correction on completed labels. • Used CVAT to complete image annotation tasks • Ensured annotation quality by reviewing and correcting labels • Specialized in annotating fast-moving, blurred objects in sports footage • Focused on maintaining strict adherence to labeling guidelines

In this role, I labeled images using bounding boxes for AI model training. I annotated sports datasets, specifically focusing on moving objects in dynamic scenes. I maintained high accuracy, consistency, and performed error correction on completed labels. • Used CVAT to complete image annotation tasks • Ensured annotation quality by reviewing and correcting labels • Specialized in annotating fast-moving, blurred objects in sports footage • Focused on maintaining strict adherence to labeling guidelines

2024 - 2026
Remotasks

Image Annotation Specialist

RemotasksImageBounding Box
As an Image Annotation Specialist, I performed annotation tasks for both images and videos using CVAT. My primary responsibility was handling complex objects, such as blurred and fast-moving items, while following strict labeling standards. I consistently achieved high QA accuracy scores throughout my work. • Executed detailed image and video annotation tasks • Ensured labeling met project accuracy and consistency requirements • Addressed blurred and ambiguous image elements • Utilized Remotasks platform and CVAT software for annotation

As an Image Annotation Specialist, I performed annotation tasks for both images and videos using CVAT. My primary responsibility was handling complex objects, such as blurred and fast-moving items, while following strict labeling standards. I consistently achieved high QA accuracy scores throughout my work. • Executed detailed image and video annotation tasks • Ensured labeling met project accuracy and consistency requirements • Addressed blurred and ambiguous image elements • Utilized Remotasks platform and CVAT software for annotation

2023 - 2024
Sama

Data Labeling Associate

SamaImageClassification
In this data labeling role, I handled object detection and classification tasks across diverse datasets. I ensured dataset consistency and collaborated frequently with QA teams for quality control. My work contributed to maintaining high annotation standards. • Performed object classification and detection using Sama tools • Maintained dataset quality through regular analysis • Supported QA through collaborative reviews • Ensured consistent and accurate label application

In this data labeling role, I handled object detection and classification tasks across diverse datasets. I ensured dataset consistency and collaborated frequently with QA teams for quality control. My work contributed to maintaining high annotation standards. • Performed object classification and detection using Sama tools • Maintained dataset quality through regular analysis • Supported QA through collaborative reviews • Ensured consistent and accurate label application

2022 - 2023
Appen

Junior Data Annotator

AppenImageBounding Box
As a Junior Data Annotator, I completed entry-level labeling tasks primarily using annotation tools. Over time, I improved labeling speed and accuracy through ongoing practice and feedback. My responsibilities included learning annotation methods and ensuring data accuracy. • Used Appen's proprietary image annotation tools • Focused on developing labeling expertise for AI models • Participated in routine quality checks and corrections • Practiced consistent application of annotation guidelines

As a Junior Data Annotator, I completed entry-level labeling tasks primarily using annotation tools. Over time, I improved labeling speed and accuracy through ongoing practice and feedback. My responsibilities included learning annotation methods and ensuring data accuracy. • Used Appen's proprietary image annotation tools • Focused on developing labeling expertise for AI models • Participated in routine quality checks and corrections • Practiced consistent application of annotation guidelines

2021 - 2022

Education

N

N/A

Certificate, Game Development

Certificate
2024 - 2024

Work History

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