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Paul N.

Paul N.

Senior Data Annotation Specialist / Data Labeller & QA Reviewer (Contract)

Key Skills

Software

RemotasksRemotasks
Scale AIScale AI
AppenAppen
Other

Top Subject Matter

Computer Vision (CV) and NLP for AI/ML training
Content Moderation
Search Relevance

Top Data Types

ImageImage
AudioAudio
DocumentDocument
TextText

Top Task Types

Bounding BoxBounding Box
TranscriptionTranscription
Data CollectionData Collection

Freelancer Overview

Senior Data Annotation Specialist / Data Labeller & QA Reviewer (Contract). Core strengths include Remotasks, Scale AI, and Appen. Education includes Bachelor of Science, University of Nairobi (2019). AI-training focus includes data types such as Image, Audio, and Document and labeling workflows including Bounding Box, Transcription, and Data Collection.

Labeling Experience

Remotasks

Senior Data Annotation Specialist / Data Labeller & QA Reviewer (Contract)

RemotasksRemotasksImageImageBounding BoxBounding Box

Annotated large-scale computer vision data to support AI/ML training and evaluation. Applied precise bounding box, polygon, polyline, keypoint, and semantic segmentation labeling according to detailed guidelines. Maintained consistently high accuracy and quality scores to meet project benchmarks. • Labeled 500,000+ data points across computer vision tasks. • Achieved 97%+ quality score consistently, exceeding team benchmarks. • Resolved ambiguous labeling edge cases with project leads. • Trained junior annotators on annotation guidelines, QA standards, and tool usage.

2022 - Present
Appen

Data Labeller & QA Reviewer (Freelance)

AppenAppenAudioAudioTranscriptionTranscription

Labeled and reviewed datasets for social media content moderation, search relevance, and speech recognition projects. Produced multilingual audio transcriptions and performed speaker diarization for English and Swahili datasets. Conducted QA checks to flag inconsistencies, duplicates, and mislabels while sustaining high completion rates. • Delivered 95%+ task completion while meeting daily production quotas. • Performed audio transcription and speaker diarization for multilingual data. • Evaluated search results for relevance, freshness, and user intent using EEAT guidelines. • Identified and escalated data inconsistencies, duplicates, and mislabelled samples.

2020 - 2022

Data Entry & Digitization Officer (Internship)

OtherDocumentDocumentData CollectionData Collection

Digitized and cleaned large volumes of survey and census data with very high accuracy. Performed data validation, de-duplication, and formatting to ensure records were consistent for government database ingestion. Helped design data collection templates and QA checklists to support reliable field survey operations. • Achieved 99%+ accuracy in digitization and data cleaning tasks. • Conducted data validation and de-duplication of statistical records. • Assisted in creating survey templates and QA checklists. • Managed structured data entry, formatting, and spreadsheet workflows.

2019 - 2020

Education

U

University of Nairobi

Bachelor of Science, Computer Science

Bachelor of Science
2015 - 2019