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Rupech Nkengafack

@rupechnkengafack

AI Trainer at Self-Employed labeling text, images, and audio with consistent rules across every item.

Cameroon
Message

At Self-Employed, I annotate text, image, and audio data against written guidelines using CVAT and Doccano. My work includes text classification, named entity recognition, bounding boxes, polygon segmentation, and speech-to-text transcription.

At Battmobile, I handled 50–80 inbound requests per shift while recording cases with 99% data accuracy and 100% completeness. Across customer-facing roles, I kept client records accurate, explained options clearly, and escalated complex cases according to procedure.

Experience

Work history, roles, and key accomplishments

SE
Current

Freelance Data Annotator and AI Trainer

Self-Employed

Oct 2026 - Present (1 month)

Annotate text, image and audio data against written guidelines, applying consistent labelling rules across tasks. Work includes text classification, sentiment and intent labelling, named entity recognition, bounding boxes, polygon segmentation, and speech-to-text transcription with speaker identification.

BA

Customer Support Agent (Call Center)

Battmobile

Jun 2026 - Sep 2026 (3 months)

Handled 50-80 inbound requests per shift, logging every case with 99% data accuracy and 100% record completeness. Calmed upset customers with clear solutions and tracked technician status with internal teams to keep resolutions on schedule.

SE

Sales and Client Support Officer

Sajio Real Estate

Oct 2025 - Jun 2026 (8 months)

Kept CRM records and client files 100% accurate, with no missed follow-ups or lost documents. Managed enquiries across calls, online channels and email, contributing to a 25-30% increase in qualified leads.

AI

Customer Service Representative

A&C Stock Investment

Oct 2022 - Jan 2023 (3 months)

Explained options and processes clearly to clients by phone and email. Routed client cases to the right advisors, cutting wait times by 25%, and handled confidential client information with a zero-breach record.

Education

Degrees, certifications, and relevant coursework

CD

CipherSense x Datalens

Essentials of Data Labelling and Annotation for AI Development, Data Labelling and Annotation

Completed the Essentials of Data Labelling and Annotation for AI Development in October 2026.

Great Learning logoGL

Great Learning

Customer Service Essentials, Customer Service

Completed Customer Service Essentials in November 2025.

University of Buea logoUB

University of Buea

Bachelor of Science, Banking and Finance

Pursued a Bachelor of Science in Banking and Finance at the University of Buea.

Tech stack

Software and tools used professionally

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