Nonso Ezenwugo
AI Trainer • Data Automation Specialist • Prompt Engineer
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About
Results-driven AI Trainer and Data Automation Specialist with hands-on experience evaluating AI-generated outputs, engineering high-quality prompts, and building automated data workflows. Adept at improving model performance through precise data annotation, RLHF feedback, and structured task design. Combines strong analytical thinking with effective communication to deliver measurable results across remote AI and tech environments.
Passionate about leveraging cutting-edge tools to solve real-world problems.
Experience
AI Training Contributor at Outlier AI (2024-01 – Present)
- Evaluated and rated AI-generated responses across 200+ tasks per week, improving model accuracy by providing structured RLHF feedback.
- Engineered high-quality prompts across diverse domains including coding, creative writing, and factual Q&A, resulting in measurably better model outputs.
- Identified and flagged harmful, biased, or low-quality AI responses, contributing to safer and more reliable AI systems.
- Collaborated with distributed remote teams to meet quality benchmarks and submission deadlines consistently.
Data Annotation Specialist at DataAnnotation.tech (2024-01 – Present)
- Completed 150+ data annotation projects involving text classification, entity recognition, and conversational AI rating.
- Maintained a quality score above 95% across all submitted tasks, consistently ranking among top-tier contributors.
- Provided detailed written rationales for AI response rankings, helping train more context-aware language models.
Data & Automation Assistant at Freelance (2023-01 – 2024-12)
- Built automated data collection pipelines using Python and Zapier, reducing manual data entry time by approximately 60% for small business clients.
- Designed and maintained spreadsheet dashboards tracking KPIs for 3 clients, enabling faster business decision-making.
- Performed web scraping and data cleaning tasks, delivering structured datasets ready for analysis.
- Trained clients on using AI tools (ChatGPT, Notion AI) to streamline their daily workflows.
Education
B.Sc. in Computer Science / Information Technology – University of Nigeria (2019-01 – 2023-12)
