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Imemfon Collins

Data Annotator/ Transcription trainer (Image, Audio, Video, CUA)

Nigeria flagLagos, Nigeria
$6.00/hrIntermediateAppenData Annotation TechMercor

Key Skills

Software

AppenAppen
Data Annotation TechData Annotation Tech
MercorMercor
Micro1
MindriftMindrift
OneFormaOneForma
TelusTelus
Internal/Proprietary Tooling

Top Subject Matter

Film Dialogue Audio
AI Language Model Outputs
Computer Use Workflows

Top Data Types

AudioAudio
TextText
VideoVideo
ImageImage
DocumentDocument

Top Task Types

TranscriptionTranscription
Data CollectionData Collection
Bounding BoxBounding Box
Evaluation/RatingEvaluation/Rating

Freelancer Overview

Audio Transcription Specialist (Film Dialogue). Brings 7+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Internal and Proprietary Tooling. Education includes Bachelor of Science, Akwa Ibom State University (2020). AI-training focus includes data types such as Audio, Text, and Computer Code and labeling workflows including Transcription, Evaluation, and Rating.

IntermediateEnglish

Labeling Experience

Model Response Evaluator/ Prompt Writer

Text
I evaluated AI-generated text responses for accuracy, coherence, and safety in a structured annotation workflow. I wrote and refined prompts to improve model outputs and provided feedback for AI fine-tuning. Annotation guidelines were closely followed to ensure high-quality text data labeling for training and testing language models. • Rated and compared model-generated text outputs. • Identified biases, hallucinations, and errors in AI responses. • Designed and optimized test cases and prompts. • Verified factual accuracy and compliance with ethical standards.

I evaluated AI-generated text responses for accuracy, coherence, and safety in a structured annotation workflow. I wrote and refined prompts to improve model outputs and provided feedback for AI fine-tuning. Annotation guidelines were closely followed to ensure high-quality text data labeling for training and testing language models. • Rated and compared model-generated text outputs. • Identified biases, hallucinations, and errors in AI responses. • Designed and optimized test cases and prompts. • Verified factual accuracy and compliance with ethical standards.

2026 - 2026

Audio Transcription Specialist (Film Dialogue)

AudioTranscription
I transcribed film dialogue audio with high accuracy, ensuring all speech, including accents, was captured clearly. Labeling included structured annotation of speakers in multi-character scenes and representation of non-verbal sounds for AI dataset enrichment. Adherence to strict client guidelines and style rules was maintained throughout transcription tasks. • Labeled speakers and identified overlapping speech. • Annotated non-verbal sounds (e.g., laughter, sighs) where required. • Ensured formatting and terminology consistency across transcripts. • Conducted quality review and editing for transcript clarity.

I transcribed film dialogue audio with high accuracy, ensuring all speech, including accents, was captured clearly. Labeling included structured annotation of speakers in multi-character scenes and representation of non-verbal sounds for AI dataset enrichment. Adherence to strict client guidelines and style rules was maintained throughout transcription tasks. • Labeled speakers and identified overlapping speech. • Annotated non-verbal sounds (e.g., laughter, sighs) where required. • Ensured formatting and terminology consistency across transcripts. • Conducted quality review and editing for transcript clarity.

2026 - 2026

Data Annotator (Computer Use Agent)

Data Collection
I recorded and validated step-by-step computer actions to build structured datasets for algorithm training. Each recorded workflow was reviewed for accuracy, task compliance, and noise reduction. The work emphasized high procedural correctness in tool-based digital environments. • Captured clicks, keystrokes, and computer inputs precisely. • Identified and flagged errors or extraneous actions. • Worked within proprietary software for data documentation. • Improved workflow clarity by highlighting ambiguities.

I recorded and validated step-by-step computer actions to build structured datasets for algorithm training. Each recorded workflow was reviewed for accuracy, task compliance, and noise reduction. The work emphasized high procedural correctness in tool-based digital environments. • Captured clicks, keystrokes, and computer inputs precisely. • Identified and flagged errors or extraneous actions. • Worked within proprietary software for data documentation. • Improved workflow clarity by highlighting ambiguities.

2025 - 2026

Data Annotator (Image Annotation)

ImageBounding Box
I labeled image datasets using bounding boxes and keypoint annotation to support training of AI vision models. Detailed annotation rules and guidelines were followed for consistency and high-quality outcomes. Regular gold standard checks were passed to verify labeling reliability and adherence. • Applied bounding box and keypoint labels to diverse image sets. • Used proprietary tools for efficient image annotation. • Ensured dataset accuracy through guideline compliance. • Contributed to high-performance AI training datasets.

I labeled image datasets using bounding boxes and keypoint annotation to support training of AI vision models. Detailed annotation rules and guidelines were followed for consistency and high-quality outcomes. Regular gold standard checks were passed to verify labeling reliability and adherence. • Applied bounding box and keypoint labels to diverse image sets. • Used proprietary tools for efficient image annotation. • Ensured dataset accuracy through guideline compliance. • Contributed to high-performance AI training datasets.

2025 - 2025

Data Annotator (Video Annotation)

VideoBounding Box
I performed video annotation using bounding boxes to track objects frame-by-frame for AI model training. High annotation accuracy was achieved and verified with gold standard validation checks. Strict labeling guidelines were followed to ensure dataset consistency and quality. • Tracked multiple moving objects in videos. • Applied bounding box labels frame-by-frame. • Maintained 95%+ annotation accuracy throughout projects. • Used proprietary tooling for efficient video labeling.

I performed video annotation using bounding boxes to track objects frame-by-frame for AI model training. High annotation accuracy was achieved and verified with gold standard validation checks. Strict labeling guidelines were followed to ensure dataset consistency and quality. • Tracked multiple moving objects in videos. • Applied bounding box labels frame-by-frame. • Maintained 95%+ annotation accuracy throughout projects. • Used proprietary tooling for efficient video labeling.

2025 - 2025

Education

A

Akwa Ibom State University

Bachelor of Science, Physics

Bachelor of Science
2020 - 2020

Work History

H

Hugo Technologies

Training Lead / Subject Matter Expert (Customer Experience)

Lagos
2024 - Present
H

Hugo Technologies

Customer Experience Training Coordinator / Subject Matter Expert

Lagos
2023 - 2024