Margaret Wanjiku

MARGARET WANJIKU Location: Nairobi, Kenya Professional Summary Detail oriented and results driven professional with strong experience in customer service, transcription, and AI data operations. Proven ability to work with large datasets, conduct data annotation and evaluation, support machine learning workflows, and deliver high quality results in fast paced, remote environments. Adaptable, analytical, and highly committed to accuracy and continuous learning in AI driven roles. Work Experience AI Data Specialist- RWS TRAIN AI (Remote) June, 2025 - February, 2026 • Performed data annotation, labeling, and categorization for AI and machine learning models • Conducted data quality checks to ensure accuracy, consistency, and reliability • Evaluated AI outputs and provided feedback to improve model performance • Assisted in data preprocessing, validation, and documentation • Followed strict guidelines and confidentiality standards while handling sensitive datasets Customer Service Representative - Grupo Noa International (Remote) November 2023 - April 2025 • Conducted surveys and research targeting US electorates • Made outbound calls to collect feedback and analyze responses • Provided real time customer support across multiple campaigns • Worked efficiently in US time zones, demonstrating flexibility and reliability • Maintained accurate records and contributed to data driven insights Transcriptionist - Scribie (Remote) Feb 2023 - Sep 2023 • Transcribed audio recordings into accurate, well formatted written documents • Maintained high accuracy and attention to detail under tight deadlines • Ensured confidentiality and compliance with transcription standards Education Bachelor of Arts in Criminology and Security Studies - Mount Kenya University Skills & Competencies • AI Data Annotation & Labeling • Data Evaluation & Quality Assurance • Data Collection & Preprocessing • Customer Service & Client Support • Survey & Research Data Handling • Strong Communication Skills • Time Management & Multitasking • Remote Work & Cross Time Zone Collaboration References available upon request