Cornell John

I am a versatile AI training specialist and IT professional with 3+ years of experience in machine learning data annotation, transcription, quality assurance, and technical support. I combine technical proficiency in AI/ML workflows with strong linguistic capabilities in English and Swahili.

At TELUS International and RWS Moravia I annotated multimodal datasets, conducted LLM evaluation and prompt testing, and performed search quality assessments, consistently achieving 98%+ accuracy and reducing QA rework cycles. I have transcribed and annotated hundreds of hours of audio, applying cultural and dialectal knowledge to improve speech recognition and LLM training.

I also bring hands-on IT systems and network support experience, having deployed infrastructure, provided user training, and maintained high uptime in healthcare and academic environments. I develop data-processing scripts and full-stack applications using Python, JavaScript, PHP, and MySQL to support automation and integration needs.

I work effectively in fully remote, distributed teams, prioritize guideline adherence and documentation, and focus on delivering reliable, quality-focused outcomes that improve model performance and workflow efficiency.