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Martin Muchiri

Martin Muchiri

Data Annotation & Transcription Specialist

Kenya flagNairobi, Kenya
$4.00/hrIntermediateAppenClickworkerCloudfactory

Key Skills

Software

AppenAppen
ClickworkerClickworker
CloudFactoryCloudFactory
LabelboxLabelbox
OneFormaOneForma
RemotasksRemotasks
RoboflowRoboflow
Scale AIScale AI
Internal/Proprietary Tooling

Top Subject Matter

No subject matter listed

Top Data Types

AudioAudio
DocumentDocument
ImageImage

Top Task Types

Classification
Entity Ner Classification
Evaluation Rating
Text Summarization
Transcription

Freelancer Overview

I have hands-on experience contributing to AI training and data quality work that requires strong attention to detail, consistency, and clear judgment. My experience includes text evaluation, transcription, data classification, fact-checking, and structured annotation tasks, where following detailed guidelines and maintaining accuracy were critical. I bring strong analytical thinking, advanced English proficiency, and the ability to quickly understand new annotation frameworks and internal tools. I’m comfortable working with large text and audio datasets, documenting reasoning, handling ambiguity carefully, and maintaining quality over sustained workloads. My background in content analysis, research support, and manual verification allows me to produce reliable annotations that support high-quality AI training data.

IntermediateSwahiliEnglish

Labeling Experience

Document & Entity Verification

Internal Proprietary ToolingDocumentEntity Ner ClassificationClassification
Performed manual verification of document-based information by cross-checking multiple sources. Labeled verified fields, documented assumptions, and flagged uncertainty to ensure auditability and consistency.

Performed manual verification of document-based information by cross-checking multiple sources. Labeled verified fields, documented assumptions, and flagged uncertainty to ensure auditability and consistency.

2024 - 2025

Text Evaluation & Content Quality Review

Internal Proprietary ToolingTextClassificationQuestion Answering
Reviewed and evaluated text and AI-generated content for accuracy, clarity, and guideline compliance. Applied structured labels, identified errors or ambiguities, and documented reasoning to support data quality improvements.

Reviewed and evaluated text and AI-generated content for accuracy, clarity, and guideline compliance. Applied structured labels, identified errors or ambiguities, and documented reasoning to support data quality improvements.

2024 - 2025

Speech Transcription & Text Normalization

Internal Proprietary ToolingAudioTranscription
Transcribed short English audio clips into clean, standardized text. Removed disfluencies, corrected grammar without changing meaning, and followed strict formatting guidelines for training-quality datasets.

Transcribed short English audio clips into clean, standardized text. Removed disfluencies, corrected grammar without changing meaning, and followed strict formatting guidelines for training-quality datasets.

2023 - 2025

Education

U

University of Nairobi

Bachelor of Science, Marketing

Bachelor of Science
2014 - 2018

Work History

U

Umba

Manager, Marketing

Nairobi
2023 - Present
W

WTS

Senior Marketing Specialist

Nairobi
2019 - 2023