Valentin Z.

Experience

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  Фриланс

  Nov 2021 - Nov 2022

  Freelance Data Analyst

  As a Data Analyst I organized and reported training results to a company-wide management, conducted data analyses to leverage the results to drive brand decision making and survey development, presented tools and recommendations to directors and executive staff. Some of the projects are listed at the bottom of CV. Python ( I have 3 Machine Learning projects) - Wrote scripts to clean the data, analyze large data sets, discover hidden relationships between variables and build a training machine. SQL (I have 5 SQL Database projects) - Wrote advanced SQL queries to extract and analyze data from databases. Tableau & Power BI - Was used to simplify raw data in a very easily understandable format. Thus to create the data that can be understood by professionals at any level in an organization. Excel & Power Query - Performed t-test, outlier analysis, error bar estimation, data analysis and build pivot tables. Show less

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  Parker Hannifin

  Apr 2022 - Jul 2022

  Junior AR Accountant & SQL Developer

  processing supplier invoices, PO invoices verification (matching PO invoices with purchase orders created by buyer)coding expense invoices and sending for approval to responsible person,dealing with supplier and local finance queries, working with payment reports,preparing month-end accruals, setting up a new suppliers, changing banking data,Mitigating Data with SQL

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  Acxiom

  Jan 2023 - Jan 2025

  Delivery/Data Analyst

  - Supporting customer processes based in USA - Using in-house software to softcode parameters for several weekly/monthly campaigns - modifying SQL queries - Daily auditing of overnight runs- Searching logs for issues

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  Astreya

  Jun 2023 - now

  Business Data Analyst at Google

  • Analyzed data sets to identify trends and generate insights. • Created and maintained databases for reporting and analysis purposes. • Developed and implemented data collection strategies to improve data quality. • Collaborated with cross-functional teams to interpret data and create actionable recommendations • Performed statistical analysis on large data sets to drive business decisions. • Utilized SQL/BigQuery to extract and manipulate data for reporting and analysis. • Presented findings and recommendations to stakeholders in a clear and concise manner • Designed and automated reports to track key performance metrics • Automating operations with BigQuery, AppScipts and PLX • Tracking my progress through Jira Show less