
Olivia
Data Scientist
Compétences

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Expérience professionnelle
Senior Data Scientist
Safaricom PLC • Temps plein
Jan 2022 - Present • 4 yrs 4 mos
Led a team of 4 data scientists in developing ML models for customer churn prediction, achieving 87% accuracy and reducing churn by 23%, saving $2.1M annually in retention costs. Architected and deployed a real-time recommendation engine for M-PESA services using collaborative filtering and deep learning, increasing cross-sell revenue by 18%. Built an anomaly detection system for fraud prevention processing 15M+ daily transactions with 94% precision, reducing false positives by 35%. Spearheaded the migration of legacy analytics infrastructure to AWS cloud, reducing computation costs by 40% and improving model deployment time by 60%. Developed NLP sentiment analysis pipeline for customer feedback processing 50K+ daily interactions across Swahili and English languages