Denis Mezin
Senior Data Engineer @Cognizant
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WORK HISTORY
Senior Data Engineer @Cognizant
Portland, OR, US
Nike Technology / Demand & Supply Management (DSM)/ Inventory Management - Design and development of data pipelines for critical reports (migration to different systems)- Was involved in the design and implementation phase of building E2E Inventory Management and Forecasting solution- Deployment activities coordination, regression, and performance testing- DAGs/Processes/Batch jobs performance monitoring, analysis, and tuning- Design, development, and testing of various ETL processes using Pyspark, SQL, AWS, Hive, and other tools- Worked with TPM and business users on identifying areas of improvement, and design sessions.
EDUCATION
University of California, Berkeley
Certificate Program in Software Development and Programming
National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)
BS and MS Degree in Engineering (WES Evaluated and Approved), Experimental and Theoretical Physics
National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)
BS Degree in Economics (WES Evaluated and Approved), Economics and operation of business
SKILLS
ABOUT DENIS MEZIN
Results-driven professional with 13+ years of experience in Data Engineering, Software Development, Business Systems Analysis, and Data Analytics across all phases of the Software Development Life Cycle (SDLC). Experienced with a wide range of technologies and able to quickly adapt to new ones.Areas of expertise include:Data Engineering: ETL, data pipelines, APIs, big data analysis, data visualization, and reportingBusiness & Systems Analysis: Requirement gathering, use case/test case development, business process modeling, and automation.Software Development & Optimization: Managing change requests, issue resolution, system enhancement, and process automation.Tools & Technologies: SQL, JavaScript, React, Node.js, Python, Tableau, MS Office, SharePoint, Amazon Web Services (AWS), SAP IBP, TM1, O9, Airflow, Spark, AutosysDatabase Management Systems: Teradata, MySQL, MS SQL Server, Snowflake, HiveProject Management Tools: Confluence, ServiceNow, VersionOne, MS Project, Jira, SharePointSDLC Methodologies: Agile, SAFe, WaterfallLanguages: English, Russian, French
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