Byron Omondi
@byronomondi
NLP data annotator and AI model evaluation specialist with 4+ years labeling and auditing multilingual datasets for LLMs.
What I'm looking for
I’m a detail-oriented NLP Data Annotator and AI Model Evaluation Specialist with 4+ years of experience labeling, classifying, and evaluating text datasets used to train large language models, chatbots, and language understanding systems.
I specialize in sentiment labeling, intent classification, named entity recognition (NER), and text categorization, consistently maintaining quality scores above 98% while meeting productivity targets in remote, guideline-driven environments.
I work extensively with JSON, XML, CSV, and TSV datasets, applying NLP evaluation metrics like precision, recall, and F1-score (and inter-annotator agreement) to audit annotation batches and report findings. I also run pairwise comparisons and response ranking to assess AI-generated outputs against annotation guidelines.
My multilingual capability in English, French, Swahili, and Oromo supports cross-lingual NLP dataset development and improved label consistency across multilingual training corpora, while I document discrepancies and contribute actionable process improvements.
Experience
Work history, roles, and key accomplishments
NLP Data Annotator & Evaluator
Imerit Technology
Jan 2022 - Present (4 years 6 months)
Label, classify, and evaluate large-scale text datasets for LLM, chatbot, and search engine development pipelines. Conduct response quality assessments using NLP evaluation metrics and ensure dataset integrity via JSON, XML, and CSV annotation workflows.
Data Quality Assurance Analyst
Samasource Kenya Limited
Jan 2022 - Present (4 years 6 months)
Perform quality audits and validation reviews for AI training datasets across multiple modalities, ensuring accuracy and compliance with project benchmarks. Validate structured data exports in CSV/JSON, identify labeling inconsistencies, and document corrective actions for continuous improvement.
Education
Degrees, certifications, and relevant coursework
University of Nairobi
Bachelor of Arts, Linguistics & Communication
Earned a Bachelor of Arts in Linguistics & Communication from the University of Nairobi.
Tech stack
Software and tools used professionally
Availability
Location
Authorized to work in
Job categories
Skills
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