COSMAS M.
Mid-Level AI Quality Analyst
Open to offersNew to PlatformAbout
Cosmas O. is an accomplished AI Data Annotation Specialist and Quality Analyst with over five years of experience at Samasource Kenya EPZ, focusing on providing precise training data for the artificial intelligence and machine learning industry. He has a robust background in data annotation, dataset validation, and annotation quality assurance, contributing to text, image, and audio projects as well as large language model (LLM) evaluation initiatives. His responsibilities have included auditing and reviewing datasets, coaching team members to improve accuracy, ensuring compliance with detailed annotation guidelines, and collaborating with project managers and AI engineers to uphold industry standards. Cosmas O. has consistently supported the delivery of high-quality training data for global AI systems, specifically within natural language processing and computer vision domains.
Experience
AI QUALITY ANALYST
Samasource Kenya EPZ · 2023 — PresentConducted quality audits on annotated datasets to confirm adherence to specific project annotation guidelines and AI training requirements. Identified inconsistencies and quality gaps within training datasets through analysis of labeling outputs. Provided support for dataset validation used in Large Language Model (LLM) training and evaluation. Offered coaching to annotators and reviewers, focusing on enhancing dataset accuracy with feedback. Worked collaboratively with project managers and AI engineers to optimize annotation standards and data workflows. Monitored dataset performance metrics to ensure reliability for machine learning models while upholding high-quality datasets in compliance with industry standards.DATA REVIEWER
Samasource Kenya EPZ · 2021 — 2023Reviewed annotated datasets to confirm their correctness, consistency, and alignment with established guidelines. Conducted secondary validation checks on labeled data prior to client delivery. Provided corrective feedback to annotators to improve annotation quality and reduce recurring mistakes. Assisted in clarifying annotation ambiguities by referencing project documentation and internal guidelines. Monitored quality trends to identify ongoing annotation challenges and promote continuous improvement. Ensured uniform labeling standards across extensive AI training datasets, contributing to dependable data outcomes.ASSOCIATE DATA ANNOTATOR
Samasource Kenya EPZ · 2019 — 2021Annotated language data for tasks in Natural Language Processing (NLP), including sentiment analysis, entity recognition, and classification. Followed detailed annotation instructions to generate high-quality machine learning training datasets. Categorized and labeled datasets comprising text, images, and audio content intended for AI system training. Participated in training sessions aimed at enhancing annotation accuracy and data interpretation skills. Contributed to dataset development for computer vision and NLP models, consistently achieving high standards for annotation accuracy and productivity.
Skills & Expertise
Education
- Diploma in Mass CommunicationKenya Institute of Media And Technology · — — 2015
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