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Mariusz R.
Mariusz Repczynski
,
Reading, United Kingdom
Experience
Other titles
Skills
I'm offering
Experienced working with stakeholders from varied organizational levels, can understand technical and non-technical client requirements and translate them into well-structured data models, meaningful insights and intuitive, user-friendly, interactive reports and dashboards. Now looking for a suitable Power BI focused position within an ambitious organization.
Markets
United Kingdom
Language
English
Fluently
Polish
Fluently
Ready for
Larger project
Ongoing relation / part-time
Full time contractor
Available
My experience
2020 - ?
job
Power BI Developer
Network Homes.
United Kingdom.
• Worked as a part of Agile Project Team to develop Power BI solutions that meet the business needs.
• Used Azure DevOps to plan and update on progress of each Sprint.
• Designed large Tabular Models / Datasets for use across multiple Power BI reports.
• Used Power BI Performance Analyzer and DAX Studio to expose bottlenecks and perfect DAX formulas and optimise Visuals.
• Utilized Power Bi's futures like Buttons, Bookmarks, Drill Down, Drillthrough or Custom Tooltips to maximize user experience.
• Designed Power BI reports with use of effective layouts that guide the user through the report.
• Used Power BI's Templates and Custom Themes to standardize reports look and feel.
• Collaborated with other Team members to develop and streamline the Data Lakes architecture.
• Mentored Power BI Developers on Tabular Modelling best practices and DAX formulas.
• Provided continued maintenance and bug fixes for the existing Power BI Reports.
• Worked as a part of Agile Project Team to develop Power BI solutions that meet the business needs.
• Used Azure DevOps to plan and update on progress of each Sprint.
• Designed large Tabular Models / Datasets for use across multiple Power BI reports.
• Used Power BI Performance Analyzer and DAX Studio to expose bottlenecks and perfect DAX formulas and optimise Visuals.
• Utilized Power Bi's futures like Buttons, Bookmarks, Drill Down, Drillthrough or Custom Tooltips to maximize user experience.
• Designed Power BI reports with use of effective layouts that guide the user through the report.
• Used Power BI's Templates and Custom Themes to standardize reports look and feel.
• Collaborated with other Team members to develop and streamline the Data Lakes architecture.
• Mentored Power BI Developers on Tabular Modelling best practices and DAX formulas.
• Provided continued maintenance and bug fixes for the existing Power BI Reports.
Power BI, Azure, Agile, Architecture, Azure DevOps, BEE
2019 - 2020
job
BI Developer
Gama Aviation.
United Kingdom.
• Led the adoption of Power BI within the Organization worldwide.
• Organized User Story sessions to understand and capture the business requirement.
• Designed and supported organizations Data store using Power BI's Dataflows.
• Utilised Power Query's UI capabilities to transform, merge and manipulate queries, while preserving Query Folding where supported.
• Used Power Query's M language to manipulate Tables, Lists and Records as well as created Custom Columns, Functions, Parameters and Variables.
• Designed Large Semantic Models / Datasets with use Composite Models Components.
• Used advanced DAX functions to create Measures, Columns, Tables.
• Maintained and administered Power BI Service.
• Designed Data Store POC using Azure Data Lake Gen 2, Azure Databricks and Azure Data Factory.
• Worked with other BI tools like SSMS, Oracle SQL Developer, Crystal Reports, DAX Studio and Tabular Editor.
• Led the adoption of Power BI within the Organization worldwide.
• Organized User Story sessions to understand and capture the business requirement.
• Designed and supported organizations Data store using Power BI's Dataflows.
• Utilised Power Query's UI capabilities to transform, merge and manipulate queries, while preserving Query Folding where supported.
• Used Power Query's M language to manipulate Tables, Lists and Records as well as created Custom Columns, Functions, Parameters and Variables.
• Designed Large Semantic Models / Datasets with use Composite Models Components.
• Used advanced DAX functions to create Measures, Columns, Tables.
• Maintained and administered Power BI Service.
• Designed Data Store POC using Azure Data Lake Gen 2, Azure Databricks and Azure Data Factory.
• Worked with other BI tools like SSMS, Oracle SQL Developer, Crystal Reports, DAX Studio and Tabular Editor.
Power BI, Sql, Oracle, Azure, Oracle sql
2017 - 2018
job
BI Data Analyst
Dimensions UK.
United Kingdom.
• Led the introduction of Power BI with Premium Capacity into the Organization.
• Collaborated closely with Stakeholders to develop a portfolio of Dashboards, Reports and Datasets to support the organization's needs.
• Setup and managed Enterprise Gateways, Gateway connections, data source credentials, Scheduled refreshes.
• Created and managed Workspaces published Apps and set permissions.
• Applied Dynamic Row Level Security on Power BI Datasets.
• Used Power Bi's Admin Portal to adjust Tenant Settings and analyse Usage Metrics.
• Produced User Guides for Power Bi Reports and highlighted key Reports functionalities to the end users.
• Maintained and developed SQL Server Data Warehouse.
• Developed SSRS Reports, SSAS Tabular Models and SSIS Packages.
• Used query analyser to optimize query performance.
• Led the introduction of Power BI with Premium Capacity into the Organization.
• Collaborated closely with Stakeholders to develop a portfolio of Dashboards, Reports and Datasets to support the organization's needs.
• Setup and managed Enterprise Gateways, Gateway connections, data source credentials, Scheduled refreshes.
• Created and managed Workspaces published Apps and set permissions.
• Applied Dynamic Row Level Security on Power BI Datasets.
• Used Power Bi's Admin Portal to adjust Tenant Settings and analyse Usage Metrics.
• Produced User Guides for Power Bi Reports and highlighted key Reports functionalities to the end users.
• Maintained and developed SQL Server Data Warehouse.
• Developed SSRS Reports, SSAS Tabular Models and SSIS Packages.
• Used query analyser to optimize query performance.
Power BI, SQL Server, Data Warehouse, Sql, SSAS, SSRS, Ssis
2015 - 2017
job
Strategic Business Analyst
Future Electronics.
United Kingdom.
• Collaborated closely with Stakeholders to develop a portfolio of Dashboards, Reports and Datasets to support the organization's needs.
• Developed T-SQL Stored Procedures, Functions and Views using SSMS.
• Produced Reports and Dashboards using SSRS, Excel and Power View.
• Designed and developed ETL SSIS packages to facilitate incremental load process.
• Followed Kimball approach while improving design of Data Warehouse, with widespread use of Start Schema.
• Experience working with connectors: Dataflows, SQL Server, Excel, Text, CSV, JSON, XML, Folders, SharePoint Online lists/folders, and Web
• Documented the development processes.
• Collaborated closely with Stakeholders to develop a portfolio of Dashboards, Reports and Datasets to support the organization's needs.
• Developed T-SQL Stored Procedures, Functions and Views using SSMS.
• Produced Reports and Dashboards using SSRS, Excel and Power View.
• Designed and developed ETL SSIS packages to facilitate incremental load process.
• Followed Kimball approach while improving design of Data Warehouse, with widespread use of Start Schema.
• Experience working with connectors: Dataflows, SQL Server, Excel, Text, CSV, JSON, XML, Folders, SharePoint Online lists/folders, and Web
• Documented the development processes.
Ssis, Processes, Kimball, Online, Server, Power, Web, Development, Analyst, Support, SSRS, Design, T-SQL, Stored procedures, Data Warehouse, ETL, SharePoint, XML, JSON, SQL Server, Sql, Excel
2014 - 2015
job
Supply Chain Data Analyst
Bidfood UK.
United Kingdom.
• Worked closely with Management Team to develop reports and supply analytical insight to support the organization's needs.
• Developed T-SQL Stored Procedures using SSMS.
• Produced Interactive Reports and Dashboards using Excel.
• Developed MS Access Databases and Forms.
• Automating processes with VBA Scripting.
• Worked closely with Management Team to develop reports and supply analytical insight to support the organization's needs.
• Developed T-SQL Stored Procedures using SSMS.
• Produced Interactive Reports and Dashboards using Excel.
• Developed MS Access Databases and Forms.
• Automating processes with VBA Scripting.
Excel, Sql, Scripting, VBA, Management, Stored procedures, T-SQL, Access, Support, Analyst, Processes
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