James Mungai

Key Skills

Software

Internal/Proprietary Tooling

CloudFactory

Sama

Top Subject Matter

No subject matter listed

Top Data Types

Image

3D Sensor

Top Label Types

Bounding Box

Segmentation

Freelancer Overview

I am a detail-oriented data annotator and labeler with hands-on experience creating high-quality training datasets for AI and machine learning, particularly in computer vision and autonomous vehicle domains. My work includes precise annotation of images, videos, and LIDAR data—drawing bounding boxes and polygons, classifying road signs, vehicles, and lane markings, and conducting rigorous quality control to ensure data accuracy and consistency. I am skilled in using advanced annotation tools and collaborating with cross-functional teams to meet project deadlines. My strong background in quality assurance and my adaptability help me deliver reliable datasets that power safer, smarter AI systems.

Labeling Experience

Data Annotator/Labeler

Internal Proprietary ToolingImageBounding Box

As a Data Annotator at Avala AI, I specialized in creating detailed labels for vehicles, motorcycles, mopeds, and road signs in both images and videos for autonomous driving applications. I drew polygons on roads and bounding boxes on various road-related objects, adhering strictly to client specifications and quality standards. My work supported the creation of high-quality training datasets for machine learning models in computer vision. • Labeled road signs including differentiating types of bus stop flags • Drew bounding boxes on vehicles, motorcycles, mopeds, and bus stop flags • Performed polygon and LIDAR annotation for lane classifications • Maintained accuracy and consistency in complex data annotation tasks

As a Data Annotator at Avala AI, I specialized in creating detailed labels for vehicles, motorcycles, mopeds, and road signs in both images and videos for autonomous driving applications. I drew polygons on roads and bounding boxes on various road-related objects, adhering strictly to client specifications and quality standards. My work supported the creation of high-quality training datasets for machine learning models in computer vision. • Labeled road signs including differentiating types of bus stop flags • Drew bounding boxes on vehicles, motorcycles, mopeds, and bus stop flags • Performed polygon and LIDAR annotation for lane classifications • Maintained accuracy and consistency in complex data annotation tasks

2024

Data Labeler

CloudfactoryImageBounding Box

As a Data Labeler at CloudFactory, I focused on labeling road signs, lane markings, and road conditions in images and videos for autonomous vehicle datasets. My responsibilities included the identification and classification of traffic signs, analyzing road features, and performing quality control checks. My contributions improved the accuracy and reliability of autonomous vehicle perception systems. • Labeled and classified road signs and traffic regulatory elements • Annotated road condition changes and intersection features • Conducted quality control and discrepancy resolution • Supported AI model training for self-driving applications

As a Data Labeler at CloudFactory, I focused on labeling road signs, lane markings, and road conditions in images and videos for autonomous vehicle datasets. My responsibilities included the identification and classification of traffic signs, analyzing road features, and performing quality control checks. My contributions improved the accuracy and reliability of autonomous vehicle perception systems. • Labeled and classified road signs and traffic regulatory elements • Annotated road condition changes and intersection features • Conducted quality control and discrepancy resolution • Supported AI model training for self-driving applications

2021 - 2023

Data Annotator

Sama3D SensorSegmentation

As a Data Annotator at Samasource for Sama Project Lidar, I specialized in labeling LIDAR point cloud data for machine learning use in autonomous vehicles. I identified and named relevant objects, processed complex 3D datasets, and conducted rigorous quality checks for annotation consistency. My work contributed to safe and precise self-driving technology development. • Labeled vehicles, people, road signs, and infrastructure in LIDAR point clouds • Performed semantic segmentation and object detection in 3D space • Used combined LIDAR and video data for environmental modeling • Maintained high accuracy standards across large-scale datasets

As a Data Annotator at Samasource for Sama Project Lidar, I specialized in labeling LIDAR point cloud data for machine learning use in autonomous vehicles. I identified and named relevant objects, processed complex 3D datasets, and conducted rigorous quality checks for annotation consistency. My work contributed to safe and precise self-driving technology development. • Labeled vehicles, people, road signs, and infrastructure in LIDAR point clouds • Performed semantic segmentation and object detection in 3D space • Used combined LIDAR and video data for environmental modeling • Maintained high accuracy standards across large-scale datasets

2021 - 2021

Education

Work History