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Joshua Nyamweya

@joshuanyamweya

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I am a data annotation and transcription specialist delivering accurate, compliant transcripts.

Kenya

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What I'm looking for

I seek a technical role leveraging annotation and transcription expertise on AI or data teams, with confidentiality, growth, and measurable impact.

I am a detail-oriented data annotation and transcription specialist with formal training in Business Information Technology (DBIT) and data analytics tools including Excel and Power BI. I have delivered high-accuracy financial transcripts and worked closely with AI teams to refine transcription models.

At SamaSource I performed 3D LiDAR point cloud annotation, created precise 3D bounding boxes, and used tools such as SuperAnnotate and CVAT to maintain annotation quality; my work contributed to 98% dataset accuracy and a 15% productivity improvement in annotation workflows.

As a freelance financial transcription editor and customer service professional, I upheld strict confidentiality and regulatory compliance, achieved transcript accuracy up to 99.9%, and reduced call resolution times while maintaining strong client satisfaction. I seek roles where I can apply analytical rigor, technical annotation skills, and customer-focused problem solving.

Experience

Work history, roles, and key accomplishments

Customer Service Agent

Kimly Fiber Connection

Jan 2023 - Jan 2025 (2 years)

Provided phone and email support for order processing, refunds, and technical troubleshooting, maintained CRM records, and improved customer satisfaction through timely case resolution.

Customer Support CRM Technical Troubleshooting Order Processing Refunds Phone Support Email Support Case Management

Customer Care Representative

Majorel Kenya LMT

Jan 2022 - Jan 2023 (1 year)

Managed a high volume of inbound and outbound customer calls, resolving account, billing, and technical issues while training new hires and reducing average call resolution time to improve customer satisfaction.

Customer Support Call Center CRM Troubleshooting Training Ticketing Systems Billing Support

Data Annotation Specialist

SamaSource

Jan 2021 - Jan 2022 (1 year)

Performed 3D LiDAR point cloud annotation and created precise 3D bounding boxes for autonomous vehicle datasets, maintaining 98% accuracy across high-volume datasets and optimizing workflows to increase productivity by 15%.

Superannotate CVAT Quality Assurance Computer Vision

Financial Transcription Editor

Freelance

Jan 2018 - Jan 2021 (3 years)

Edited AI-generated financial transcripts from earnings calls, quarterly reports, and investment briefings to achieve 99.9% accuracy while maintaining strict confidentiality and collaborating with AI teams to improve transcription models.

Financial Transcription Editing Confidentiality Quality Assurance Compliance