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Samuel Muithoni

AI Training and Data Annotation Contributor, Remote Freelance Projects

Kenya flagNairobi, Kenya
$15.00/hrExpertOtherCloudfactoryClickworker

Key Skills

Software

Other
CloudFactoryCloudFactory
ClickworkerClickworker
Data Annotation TechData Annotation Tech
LabelboxLabelbox
MercorMercor
Micro1
RemotasksRemotasks
TolokaToloka
AppenAppen

Top Subject Matter

Speech Recognition & NLP
Speech Recognition
Legal Services & Contract Review

Top Data Types

TextText
VideoVideo
DocumentDocument

Top Task Types

ClassificationClassification
TranscriptionTranscription
Text GenerationText Generation
Bounding BoxBounding Box
Question AnsweringQuestion Answering
Computer Programming/CodingComputer Programming/Coding
Data CollectionData Collection
Text SummarizationText Summarization

Freelancer Overview

AI Training and Data Annotation Contributor, Remote Freelance Projects. Brings 7+ years of professional experience across legal operations, contract review, compliance, and structured analysis. Core strengths include Other. Education includes Bachelor of Science, Kenyatta University (2019) and High School Diploma, Muruka High School (2015). AI-training focus includes data types such as Text and labeling workflows including Classification and Transcription.

ExpertEnglish

Labeling Experience

AI Training and Data Annotation Contributor, Remote Freelance Projects

OtherTextClassification
This role focused on annotating and labeling large volumes of text and audio data for AI model training. The work involved reviewing and correcting machine-generated transcripts and performing quality assurance on structured datasets. Consistency and accuracy were emphasized throughout all labeling and annotation tasks. • Annotated transcripts for speech recognition and NLP model accuracy. • Verified and prepared text datasets for machine learning workflows. • Performed quality checks on labeled data submissions. • Utilized online annotation platforms and spreadsheet tools for data tracking.

This role focused on annotating and labeling large volumes of text and audio data for AI model training. The work involved reviewing and correcting machine-generated transcripts and performing quality assurance on structured datasets. Consistency and accuracy were emphasized throughout all labeling and annotation tasks. • Annotated transcripts for speech recognition and NLP model accuracy. • Verified and prepared text datasets for machine learning workflows. • Performed quality checks on labeled data submissions. • Utilized online annotation platforms and spreadsheet tools for data tracking.

2022 - 2024

Legal and General Transcriptionist – Verbit (Remote)

OtherTextTranscription
This experience involved producing and editing transcripts for legal and general recordings geared towards speech recognition training. The main focus was on accurate data preparation for use in AI model development. Coordination with annotation and development teams ensured high dataset quality. • Generated legal and meeting transcripts for dataset use. • Structured and formatted transcription data for machine learning. • Supported QA and improvement of AI transcription models. • Utilized in-house transcription and labeling systems.

This experience involved producing and editing transcripts for legal and general recordings geared towards speech recognition training. The main focus was on accurate data preparation for use in AI model development. Coordination with annotation and development teams ensured high dataset quality. • Generated legal and meeting transcripts for dataset use. • Structured and formatted transcription data for machine learning. • Supported QA and improvement of AI transcription models. • Utilized in-house transcription and labeling systems.

2019 - 2021

Education

K

Kenyatta University

Bachelor of Science, Computer Science

Bachelor of Science
2016 - 2019
M

Muruka High School

High School Diploma, General Secondary Education

High School Diploma
2012 - 2015

Work History

U

Upwork

Freelance Transcriptionist

Nairobi
2019 - 2023
V

Veritext

Legal Transcriptionist

Nairobi
2020 - 2022