Margaryta Vitiuk

• Own end-to-end fraud prevention and payment risk strategy for a global marketplace. • Lead and develop a fraud team, ensuring operational quality. • Oversee escalated fraud cases, including complex transaction patterns and chargebacks. • Define fraud detection logic, risk rules, and verification workflows in collaboration with product and engineering teams. • Led the implementation of fraud verification solutions, improving detection accuracy, payment performance, and reducing manual review workload.

Owned and optimized fraud detection, billing risk, and chargeback mitigation across the platform, ensuring secure and seamless payment experiences for global users. - Implemented monitoring systems and workflows to detect high-risk activity and suspicious patterns at scale; - Acted as the central point for transaction integrity, handling critical investigations and coordinating directly with payment providers and banks; - Reviewed and approved internal billing operations, from vendor invoices to user

Led hands-on investigations into fraudulent behavior, transaction abuse, and contributor impersonation, laying the foundation for more sophisticated fraud detection systems. - Analyzed user behavior and transaction anomalies using in-house dashboards and third-party risk tools; - Responded to escalated verification cases and chargebacks with in-depth analysis and well-documented rebuttals; - Flagged fraud trends and vulnerabilities, contributing directly to policy changes and internal knowledge base;

Managed complex user requests while serving as a feedback bridge between customers and the product team driving User Experience and retention improvements. - Handled high-volume support across live chat, email, and social platforms, with a strong focus on empathy and efficiency - Delivered insights from user pain points to technical teams, directly influencing product updates and bug resolutions; Developed and maintained internal support documentation and templates to align team communication with br

Produced creative, tailored content across marketing and digital channels while delivering high-quality translations for clients in various industries. - Wrote, translated, and edited content for blogs, ads, and websites with a focus on clarity, engagement, and brand alignment; - Researched niche topics to ensure quality and originality in multilingual projects.