Valery Zonov

I am a Data Analyst with a strong foundation in SQL, Python, Power BI, and Tableau, backed by the Google Data Analytics Professional Certificate (2026) and over 10 years of client-facing professional experience. I am based in Coimbra, Portugal, with full EU work authorisation and immediate availability. In my most recent analytical project, I conducted an end-to-end churn analysis for a 7,043-customer internet service provider dataset. I identified $1.67M in annual revenue at risk from churned customers, discovered that switching month-to-month contracts to annual plans reduces churn 4.3×, and delivered a structured retention report projected to save $330K–$500K per year. The full case study is available on GitHub. Before transitioning into data, I spent 2 years as a Customer Support & Data Operations Specialist at Salt Services S.A. (fully remote), where I processed daily customer metrics, maintained SLA compliance across high-volume queues, and identified recurring pain points that improved team workflow efficiency. Prior to that, I worked for a decade as a visual content creator and graphic designer, which gives me a strong ability to communicate data findings visually — not just technically. I am multilingual: Russian (native), German (C1 fluent), English (B2+), and Portuguese (B2+). This makes me especially effective in international remote teams and for roles serving European markets. I am seeking a fully remote junior data analyst, reporting analyst, or business intelligence role where I can apply SQL, Python, and dashboard design to solve real business problems — ideally with a team that values clear communication and measurable outcomes.