Brian Kupalo
Ai trainer and annotator
Talent
NairobiMember since April 6, 2026
AI Agent Testing & EvaluationData Annotation & Labeling (Text, Image, Search)UHRS HitApp ExperienceSearch Engine & Content EvaluationWeb Research & Information VerificationAttention to Detail & Guideline ComplianceMicrosoft Office (Word, Excel)Internet & Computer ApplicationsEnglish Proficiency (Written & Reading)Quality Assurance & Accuracy CheckingComputer literacy and internet navigationOnline research and data entryUnderstanding of AI data training workflowsFamiliarity with online task platforms (UHRS, Toloka, etc.)
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AI Agent Testing & EvaluationData Annotation & Labeling (Text, Image, Search)UHRS HitApp ExperienceSearch Engine & Content EvaluationWeb Research & Information Verification
About
Detail-oriented Clinical Medicine officer with strong IT skills and hands-on experience in AI data annotation, UHRS evaluation tasks, and digital content assessment. Experienced in testing, evaluating, and improving AI system outputs through structured guidelines and quality control processes. Skilled in data labeling, web research, accuracy verification, and strict guideline compliance essential for AI agent testing and training.
Experience
Online Rater / Data Annotator Freelance at UHRS (Present)
Freelance position performing AI data annotation and evaluation tasks
- Performed search relevance, image labeling, and content judgment tasks
- Evaluated AI outputs for accuracy, relevance, and policy compliance
- Followed complex task guidelines for AI training data improvement
- Maintained high accuracy scores across multiple HitApps
- Conducted web research to verify factual correctness of content
- Contributed to AI learning by providing high-quality human judgments
Education
Diploma in Computer Science
Diploma in Clinical Medicine
Skills
Ai trainer and annotator
