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E
Emmanuel E.

Emmanuel E.

Freelance Data Annotation & Testing (image labeling and QA)

Nigeria flagJos, Nigeria

Key Skills

Software

Other

Top Subject Matter

AI data annotation (image labeling) for ML dataset creation and evaluation
AI training datasets requiring audio transcription
AI evaluation/testing and text labeling for dataset quality

Top Data Types

ImageImage
AudioAudio
TextText
DocumentDocument

Top Task Types

SegmentationSegmentation
TranscriptionTranscription

Freelancer Overview

Freelance Data Annotation & Testing (image labeling and QA). Brings 3+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Other, Power BI, and Excel. Education includes Master of Science, University of Jos and Bachelor of Engineering, UATM-GASA Formation (2016). AI-training focus includes data types such as Image, Audio, and Text and labeling workflows including Segmentation, Transcription, and Evaluation.

Labeling Experience

Platform-based annotation/testing contributor (audio QA)

OtherAudioAudioTranscriptionTranscription

Used platform-based annotation/testing experience to complete audio-related labeling tasks including transcription and quality assurance. Applied attention to detail to ensure outputs matched task specifications. Supported bug reporting when issues affected transcription quality. • Performed transcription tasks with QA/verification. • Ensured adherence to annotation guidelines. • Reported issues affecting labeling outcomes. • Completed assignments across distributed AI platforms.

2024 - Present

Freelance Data Annotation & Testing (text labeling/testing)

OtherTextText

Completed text-labeling and evaluation-oriented tasks as part of AI testing/annotation workflows on multiple platforms. Applied structured labeling to capture required fields and maintain task compliance. Contributed to dataset improvement through review and discrepancy handling. • Performed text labeling and task-based data entry. • Checked for errors and inconsistencies during verification steps. • Participated in iterative testing and QA cycles. • Logged or escalated issues discovered during reviews.

2024 - Present

Freelance Data Annotation & Testing (audio transcription)

OtherAudioAudioTranscriptionTranscription

Delivered audio transcription and related transcription-quality work for AI training datasets. Ensured transcriptions were accurate and consistent to support downstream evaluation. Managed task completion within platform guidelines and testing requirements. • Produced time-aligned or structured audio transcripts as required by tasks. • Performed transcription accuracy checks. • Followed platform instructions for dataset entry/testing. • Supported quality-focused iteration through review feedback.

2024 - Present

Freelance Data Annotation & Testing (image labeling and QA)

OtherImageImageSegmentationSegmentation

Performed image annotation across multiple crowdsourcing/AI platforms, including image classification, bounding boxes, and segmentation. Completed quality assurance checks and supported bug reporting to improve label consistency. Worked on annotation and testing tasks for production AI pipelines. • Labeled images using bounding boxes and segmentation masks. • Conducted quality assurance and verification on submitted annotations. • Reported labeling issues/bugs to maintain dataset quality. • Supported testing workflows on platform-driven tasks.

2024 - Present

Axia Africa Data Analytics Program (completed March 2026) - capstone and dataset preparation

DocumentDocument

Completed the Axia Africa Data Analytics program with a capstone focused on customer-behavior analysis and insights reporting. Built dashboards and conducted data cleaning to support analytics outputs. Applied SQL for extraction and analysis as part of the program’s supervised training. • Created Power BI dashboards to visualize trends and reporting insights. • Cleaned and prepared 5,000+ record datasets in Excel. • Used SQL queries for filtering and analysis tasks. • Produced a capstone report analyzing customer behavior.

2026 - 2026

Education

A

Axia Africa

Certificate, Data Analytics

Certificate
2026 - 2026
F

Federal University of Agriculture Makurdi (FUAM)

Certificate, Freshwater Microplastics Pollution and Management

Certificate
2024 - 2024

Work History

F

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