3+ years of leadership experience in customer success, sales, retention or similar roles Strong analytical skills with ability to translate data into actionable improvements Experience building retention programs, playbooks, or churn-prevention frameworks Proven success in improving renewal rates or stabilizing at-risk customer segments Excellent communication skills with ability to influence cross-functional teams Strong understanding of SaaS customer lifecycles, renewal risk, and adoption signals Native or near-native proficiency in Polish (written and spoken) Fluency in English (written and spoken)