Naftali

Payment Gateway Integration Specialist

Feb 2022 - Sep 2024 • 2 yrs 7 mos

Worked as a freelance Payment Gateway Integration Specialist on Upwork, delivering secure and scalable Stripe integration and PayPal integration solutions for clients worldwide. Successfully implemented Stripe payment and PayPal payment systems for eCommerce stores and web applications, including Shopify, WordPress, WooCommerce, ClickFunnels, and custom PHP/HTML websites. Handled one-time payments, recurring subscriptions, donations, and embedded checkout flows while ensuring compliance, security, and smooth user experience. Known for clean implementation, clear communication, on-time delivery, and reliable post-project support.

Machine Learning Expert

Feb 2022 - Aug 2024 • 2 yrs 6 mos

Worked as a freelance Machine Learning Expert on Upwork, delivering data-driven solutions for clients across various industries. Designed, trained, and deployed machine learning models using Python, scikit-learn, TensorFlow, and PyTorch to solve real-world problems such as prediction, classification, and pattern recognition. Handled end-to-end ML workflows including data collection, preprocessing, feature engineering, model training, evaluation, and optimization. Collaborated closely with clients to translate business requirements into scalable machine learning solutions, ensuring accuracy, performance, and maintainability.