Nkemjika Onyekwere

Key Skills

Software

Label Studio

Other

Telus

Top Subject Matter

Spanish NLP

Sentiment Domain Expertise

Intent Recognition

Top Data Types

Text

Audio

Top Task Types

Classification

Transcription

Freelancer Overview

Senior Spanish Linguistic Annotator – Microsoft (via Qualitest). Brings 10+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Label Studio, Other, and Telus. Education includes Master of Arts, University of Copenhagen and Bachelor of Arts, Aarhus University. AI-training focus includes data types such as Text and Audio and labeling workflows including Classification and Transcription.

Labeling Experience

AI Data Specialist (Annotation & QA) – Telus International

TelusAudioTranscription

During my work as an AI Data Specialist (Annotation & QA) at Telus International, I delivered precise transcription and annotation services on audio data. I validated data integrity and performed regular QA reviews, ensuring datasets met project standards. My tasks supported accurate AI model training and deployment for language applications. • Provided transcription services for audio data • Annotated datasets for language understanding AI • Conducted ongoing QA and accuracy checks • Maintained compliance with project labeling guidelines

During my work as an AI Data Specialist (Annotation & QA) at Telus International, I delivered precise transcription and annotation services on audio data. I validated data integrity and performed regular QA reviews, ensuring datasets met project standards. My tasks supported accurate AI model training and deployment for language applications. • Provided transcription services for audio data • Annotated datasets for language understanding AI • Conducted ongoing QA and accuracy checks • Maintained compliance with project labeling guidelines

2019 - 2021

Content Analyst & Language Specialist – Wix

OtherTextClassification

As a Content Analyst & Language Specialist at Wix, I was responsible for categorizing Spanish-language content to improve search optimization AI systems. I worked to enhance dataset linguistic accuracy and search relevance through careful annotation. My role directly influenced the performance and quality of search-driven AI tools. • Labeled and classified large-scale Spanish content datasets • Improved data relevance for machine learning models • Conducted linguistic quality control on labeling tasks • Coordinated with technical teams for optimal data pipeline

As a Content Analyst & Language Specialist at Wix, I was responsible for categorizing Spanish-language content to improve search optimization AI systems. I worked to enhance dataset linguistic accuracy and search relevance through careful annotation. My role directly influenced the performance and quality of search-driven AI tools. • Labeled and classified large-scale Spanish content datasets • Improved data relevance for machine learning models • Conducted linguistic quality control on labeling tasks • Coordinated with technical teams for optimal data pipeline

2018 - 2021

Linguistic Research & Data Annotation Specialist – TransPerfect

OtherTextClassification

As a Linguistic Research & Data Annotation Specialist at TransPerfect, I annotated multilingual datasets for machine learning models. My work was focused on Spanish syntax, morphology, and semantic structuring for AI development. I contributed to the building of diverse language resources supporting NLP systems. • Labeled multilingual text datasets for AI training • Specialized in Spanish linguistic features and annotation • Assisted with semantic and morphological dataset structuring • Worked in concert with research and engineering teams

As a Linguistic Research & Data Annotation Specialist at TransPerfect, I annotated multilingual datasets for machine learning models. My work was focused on Spanish syntax, morphology, and semantic structuring for AI development. I contributed to the building of diverse language resources supporting NLP systems. • Labeled multilingual text datasets for AI training • Specialized in Spanish linguistic features and annotation • Assisted with semantic and morphological dataset structuring • Worked in concert with research and engineering teams

2017 - 2019

Education

Work History