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P

Prince I.

Freelance AI Data Annotator (Text annotation)

Nigeria flagKaduna South, Nigeria

Key Skills

Software

Other

Top Subject Matter

NLP sentiment/toxicity/intent detection and sensitive content moderation
Computer vision object detection dataset labeling
ASR speech transcription and speech-data labeling

Top Data Types

TextText
ImageImage
AudioAudio
DocumentDocument

Top Task Types

ClassificationClassification
Object DetectionObject Detection
TranscriptionTranscription

Freelancer Overview

Freelance AI Data Annotator (Text annotation). Core strengths include Other. Education includes Higher National Diploma, The Federal Polytechnic Bida (2014). AI-training focus includes data types such as Text, Image, and Audio and labeling workflows including Classification, Object Detection, and Transcription.

Labeling Experience

Freelance AI Data Annotator (Image annotation)

OtherImageImageObject DetectionObject Detection

Performed image annotation for object detection projects, producing bounding-based labels for training datasets. Sustained high throughput with low annotation error rates. • Completed object detection image annotations at ~400 annotations/day • Maintained <2% error rate across image labeling tasks • Supported guideline adherence by improving label consistency • Contributed to quality improvements by addressing ambiguous cases

2025 - Present

Freelance AI Data Annotator (Text annotation)

OtherTextTextClassificationClassification

Provided text annotation for NLP tasks including sentiment, toxicity, and intent detection, ensuring consistent label quality. Maintained high QA performance while labeling at scale for model training. • Labeled 15,000+ text samples for sentiment/toxicity/intent tasks • Achieved 97.5% QA accuracy for labeled outputs • Flagged ambiguous cases and suggested guideline improvements • Handled sensitive content with strict confidentiality and safety protocols

2025 - Present

Data Labelling Specialist (QA and annotation evaluation)

OtherAudioAudio

Supported labeling quality through peer QA and inter-annotator reliability monitoring for ongoing monthly audits. Helped ensure consistent annotation standards across annotators. • Achieved 98% inter-annotator agreement in monthly QA audits • Performed guideline-based QA to reduce label variance • Provided feedback to improve annotation consistency • Reinforced compliance with project labeling processes

2024 - 2025

Data Labelling Specialist (Audio transcription for ASR)

OtherAudioAudioTranscriptionTranscription

Transcribed and labeled hours of spoken audio for ASR model training in English and Nigerian Pidgin. Delivered outputs aligned to project guidelines and quality requirements. • Transcribed and labeled 200+ hours of audio for ASR • Labeled in English and Nigerian Pidgin for speech recognition • Conducted peer QA reviews to validate annotation quality • Trained 5 new annotators on project guidelines

2024 - 2025

Education

T

The Federal Polytechnic Bida

Higher National Diploma, Civil Engineering (Structures)

Higher National Diploma
2007 - 2014