Margaryta Vitiuk

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.