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George Njoroge

George Njoroge

4.03 reviews

Machine Learning & Data Annotation Specialist|Hardworking, Reliable, Time

KENYA flag
Nairobi, Kenya
$10.00/hrExpertAppenClickworkerCloudfactory

Key Skills

Software

AppenAppen
ClickworkerClickworker
CloudFactoryCloudFactory
CrowdSourceCrowdSource
CVATCVAT
Data Annotation TechData Annotation Tech
Figure EightFigure Eight
HastyHasty
iMeritiMerit
Label StudioLabel Studio
Mighty AIMighty AI
RemotasksRemotasks
RoboflowRoboflow
SamaSama
Scale AIScale AI
SuperAnnotateSuperAnnotate
TolokaToloka
V7 LabsV7 Labs
Other
Internal/Proprietary Tooling

Top Subject Matter

Computer Vision
Natural Language Processing
Geospatial Data

Top Data Types

3D Sensor
ImageImage
VideoVideo

Top Label Types

Bounding Box
Cuboid
Data Collection
Polygon
Segmentation

Freelancer Overview

Over the past 5+ years, I have gained solid hands-on experience in AI training and data labeling across a range of projects and tools. I am proficient in using platforms such as Labelbox, Scale AI, and Amazon Mechanical Turk, and I adapt quickly to new annotation environments. My work has involved preparing high-quality datasets through data cleaning, preprocessing, and structured labeling. I apply strict quality assurance methods, including multi-pass reviews and consistency checks, to ensure accuracy and reliability. I have also supported model training efforts by contributing well-structured, high-integrity data that improves model performance.

Expert4.0English

Labeling Experience

Toloka

AVRIDE

Toloka3D SensorSegmentationCuboid
Am able to segment and add cuboids to unannotated object throughout the project.

Am able to segment and add cuboids to unannotated object throughout the project.

2024
Roboflow

GRAPES

RoboflowImagePolygonObject Detection
The project was about labelling ripe and unripe grapes where my team and I managed to tag 20,000 quality labels within 4months.

The project was about labelling ripe and unripe grapes where my team and I managed to tag 20,000 quality labels within 4months.

2024 - 2024
Sama

Lidar Annotation

Sama3D SensorCuboid
The project was about annotating all objects seen on lidar scene.

The project was about annotating all objects seen on lidar scene.

2022 - 2023
Label Studio

Prenav Project

Label StudioImageSegmentation
I was able to segment accross the image where i can detect a crack.

I was able to segment accross the image where i can detect a crack.

2021 - 2021

Education

M

Murang'a University

Bachelor in computer science , Computer science

Bachelor in computer science
2019 - 2022
U

University of Nairobi

Bachelor of Science, Computer Science

Bachelor of Science
2018 - 2018

Work History

S

Samasource

Team Leader

Nairobi, Nairobi, Kenya
2022 - 2023
A

Africa AI Labs

Associate

Nairobi
2020 - 2021