Nguchmahn

Key Skills

Software

Sama

CloudFactory

Top Subject Matter

Nlp Domain Expertise

Computer Vision

Speech Recognition

Top Data Types

Text

Audio

Image

Top Task Types

Entity Ner Classification

Transcription

Freelancer Overview

Data Annotation Specialist – Sama, Nairobi, Kenya. Brings 1+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Sama and CloudFactory. Education includes Bachelor of Science, Jomo Kenyatta University of Agriculture and Technology (2021). AI-training focus includes data types such as Text and Audio and labeling workflows including Entity (NER) Classification and Transcription.

Labeling Experience

Data Annotation Specialist – Sama, Nairobi, Kenya

SamaTextEntity Ner Classification

As a Data Annotation Specialist at Sama, I worked on annotating text, images, videos, and audio datasets for machine learning models. My primary focus was on NLP tagging, sentiment analysis, intent classification, and named entity recognition. I also performed transcription and segmentation of audio data for speech recognition AI systems. • Maintained over 98% annotation accuracy. • Conducted quality reviews for labeled datasets. • Used tools such as Labelbox, CVAT, and Sama platform. • Supported both NLP and computer vision annotation projects.

As a Data Annotation Specialist at Sama, I worked on annotating text, images, videos, and audio datasets for machine learning models. My primary focus was on NLP tagging, sentiment analysis, intent classification, and named entity recognition. I also performed transcription and segmentation of audio data for speech recognition AI systems. • Maintained over 98% annotation accuracy. • Conducted quality reviews for labeled datasets. • Used tools such as Labelbox, CVAT, and Sama platform. • Supported both NLP and computer vision annotation projects.

2023 - Present

AI Data Rater / Machine Learning Contributor – CloudFactory, Nairobi, Kenya

CloudfactoryAudioTranscription

During my role as an AI Data Rater / Machine Learning Contributor at CloudFactory, I evaluated AI-generated outputs for accuracy and contextual relevance. I conducted extensive audio transcription and speech data validation tasks. I supported computer vision annotation projects and contributed to overall quality control processes. • Regularly reviewed and rated AI outputs for improvement. • Utilized CloudFactory's proprietary tools and CVAT for annotation. • Worked closely with quality teams to maintain high data standards. • Processed diverse audio datasets for speech and NLP projects.

During my role as an AI Data Rater / Machine Learning Contributor at CloudFactory, I evaluated AI-generated outputs for accuracy and contextual relevance. I conducted extensive audio transcription and speech data validation tasks. I supported computer vision annotation projects and contributed to overall quality control processes. • Regularly reviewed and rated AI outputs for improvement. • Utilized CloudFactory's proprietary tools and CVAT for annotation. • Worked closely with quality teams to maintain high data standards. • Processed diverse audio datasets for speech and NLP projects.

2021 - 2022

Education

Work History