Sergei Kosyi
Data Architect at Telefónica
Based in Düsseldorf, Germany
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Seniority
Staff
Department
Information Technology
Location
Düsseldorf
Industry
Telecommunications
Company size
120K
Contact information
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s•••••••@telefonica.com
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Background
About Sergei Kosyi
Highly experienced specialist with 17+ years in IT from CRM developer to Chief Architect in Big Data team (400+ pax) of the biggest Telco Company in Russia (50M+ customers). • Passionate with data-driven management, based on 60+ PB Data Lake & ML. • Architecture dozen of Data Products, primarily based on Open-Source technologies with a minimal T2M. • Solid experience in working with requirements (BR, UR, FR, NFR), architecture, data modeling, technology selection, and IT-Infrastructure planning. • Experienced with Agile (Scrum in 6…20-pax teams) and Waterfall methodologies. • Remote work experience in a distributed team (since 2006).
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