Delivered 20+ end-to-end, enterprise-class BI solutions for UN agencies - from requirements analysis and stakeholder bridging to dimensional data modelling, pipeline development, and governed dashboard deployment - serving report audiences of hundreds and driving process automation initiatives.
Data engineering & integration:
Built Microsoft Fabric solutions including SQL Warehouses, Lakehouse, Dataflows Gen2, and Pipelines
integrated varied data sources including SQL databases, SharePoint, flat files, and web/REST API sources into governed, structured analytical layers.
Data modelling & transformation:
Designed star schema semantic models with slowly changing dimensions
developed Power Query/M transformation workflows aligned with medallion architecture principles
DAX & analytics:
Authored advanced DAX measure libraries supporting time intelligence, rolling averages, period comparisons, dynamic KPIs, and Row-Level Security and access rules aligned to organisational hierarchy for operational and executive reporting.
Dashboard design & UX:
?Designed interactive dashboards with guided data storytelling, parameterized visualizations, drill-through navigation, and adaptive conditional formatting - consistently delivering self-service business performance analytics for C-level audiences.
United Nations International Computing Center (UNICC)
Valencia
7 months
2019-02 - 2019-08
Power BI dashboards for senior stakeholders
Power BI Data Analyst (B2B)
Power BI Data Analyst (B2B)
Built advanced Power BI dashboards for senior stakeholders in Operations to give insight and drive efficiency in retention, provisioning and customer service including call centres
Collaborated with stakeholders on each stage of development life cycle; from identifying requirements and designing use cases and proof of concepts, testing data warehouse queries and data sets integrity, to building metrics, effective lay-outs, compelling visualisations and intuitive navigation
Organised workshops for users to guide through a data driven story, gather feedback, and improve if necessary
Relied on business intelligence best practices to make sure that reports are secure and sustainable, requiring no manual input to refresh and no or minimal maintenance, well documented with metrics defined in a dictionary and the code commented
Created reporting in line with Power BI best development practices, e.g. building a multi table reasonably normalized data model distinguishing between facts and dimensions, variable-based DAX formulas, or date dimension
Also, assisted with BAU, replaced partly manual reports with automated ones, maintained and updated existing reports, worked with IT to resolve consistency issues in SQL Server data warehouse
For Finance team
transformed P&L reporting suite into an automated cloud-based Power BI
reporting solution
Conceptualized and
developed dimensional data model to fully leverage Power BI DAX-based
analytical capabilities and enable advanced reporting scenarios, e.g. using
multiple Fact-table sources, multiple currencies, slowly changing dimensions
tables or different calendar conventions
Utilized M/Power
Query to develop efficient scripted data-preparation workflows to minimize ETL
time and free up resources for increased workload
Cambridge Education Centre
London
1 year
2017-10 - 2018-09
e2e development of self-service Power BI dashboards
Power BI Data Analyst
Power BI Data Analyst
Responsible for an e2e development of self-service Power BI dashboards to drive automated BI capabilities and democratize insight into acquisition cohorts, monetization, funnel / conversion analysis, churn, or engagement
For senior stakeholders perform financial analysis of casino overall performance and support them in answering a variety of operational and commercial questions regarding customer segmentation, customer maturity or customer behaviour
Deliver reporting to help relevant teams understand profitability of BTL promotional activities, manage affiliate marketing activities, or identify advantage gaming and abusive practices
SQL queried data warehouse to extract, transform and structure data so that the data is ready for ad-hoc analysis and reporting feed
Collaborate with IT to deliver quality and functionality improvement to our data infrastructure; work together to resolve inconsistency problems and make sure we have a faultless refresh of scheduled reporting
BGO Online Casino
London
2 years 3 months
2015-06 - 2017-08
Development of automated interactive Excel-based dashboards
People Insight Analyst / Developer
People Insight Analyst / Developer
Deliver actionable insight through development of automated interactive Excel-based dashboards and other reporting built to thoroughly documented requirements from stakeholders in HR and other functions; recommend best solutions to reduce build time and achieve best usability and ease of report navigation
Had a pivotal role in a full cycle 5 months? project aimed at developing a custom-made project management reporting solution to offer visibility of HR Project Portfolio and enable strategic decision making by HR Leadership
Create and analyse Call Center metrics to root cause productivity issues, measure advisors? performance and impact on customer satisfaction and upsells
Build Oracle queries as data source for dashboards and other reporting ensure they are robustly tested with logic applied in line with business guidelines
Responsible for on-going development of Single Source of Truth database for HR Insight to quickly and efficiently extract key HR data from multiple sources for use in ad-hoc reporting and analysis
Perform the role of Subject-Matter expert in data modelling and reporting design to drive forward the technical solutions available to HR Insight
Develop strong working relationship with key stakeholders in HR, Finance, IT and HR Technology to ensure consistency between data systems and best practices and guidelines are reflected in HR analytics framework
Sky Television, HR Insight
London
1 year 7 months
2013-09 - 2015-03
MI dashboard solutions and reporting tools
Team Leader Senior Reporting Analyst
Team Leader Senior Reporting Analyst
Used VBA to develop automated interactive MI dashboard solutions and reporting tools for newly acquired or prospective clients, or upgrade for existing clients, to offer insight into travel expenditure, enable performance measurement and identification of optimisation opportunities
Liaise with internal clients to manage requirements, review and upgrade current reporting systems; provide support in report navigation and thorough understanding of insight provided
Provide support to the team of 5 to guarantee the accurate and timely accomplishment of the assigned projects and tasks, including covering any team member absence or workload issue
Train and mentor team members to produce high quality error-free work; guide to actively contribute to development and sharing of skills, best practices and industry knowledge
Raise any identified issue concerning workload, processes or tools to Managers and Directors
Carlson Wagonlit Travel, Reporting Center of Excellence
Carlson Wagonlit Travel, Reporting Center of Excellence
Warsaw
Aus- und Weiterbildung
Aus- und Weiterbildung
2002 - 2006
Finance and Banking
MSc (2:1)
Warsaw School of Economics
Position
Position
Senior Power BI Consultant | Advanced Visual Analytics & Data Storytelling Expert
Kompetenzen
Kompetenzen
Top-Skills
MS Power BIDAXMS FabricSQLPower Query (M)Power BI ServiceTabular EditorDAX StudioReport BuilderLakehouseDatawarehouseDataflow Gen2Data Factory / PipelinesDirect LakeOneLakeDimension ModellingStar SchemaMedallion ArchitectureRow-Level SecuritySelf-Service BIData VisualizationBusiness Intelligence
Produkte / Standards / Erfahrungen / Methoden
Profile
15+ years building BI solutions that drive executive decision-making across international organizations including UN agencies and commercial enterprises.
Strong track record in financial performance reporting, trend analysis, and forecasting visualization for senior leadership.
8+ years in Power BI delivering end-to-end analytics: data ingestion, semantic modelling, advanced DAX, and executive dashboards for C-level audiences
Equally capable in analytical problem-solving, interactive visual analytics, and stakeholder communication ? skilled at translating ambiguous, evolving business questions into scalable, insight-driven reporting.
Proven ability to work in fast-paced, multi-team environments with proactive communication.
TECHNICAL COMPETENCIES
Dashboarding & Storytelling
Data Modelling
DAX & Metric Calculation
Visualization & UX
Data Transformation
Interactivity
Performance
PBI Service Governance & Delivery
Fabric Warehouse & Data Engineering
Stakeholder Collaboration
Einsatzorte
Einsatzorte
Deutschland, Schweiz, Österreich
möglich
Projekte
Projekte
6 years 4 months
2020-02 - now
Data engineering & integration
Power BI Data Visualization Developer (B2B)
Power BI Data Visualization Developer (B2B)
Scope & delivery:
Delivered 20+ end-to-end, enterprise-class BI solutions for UN agencies - from requirements analysis and stakeholder bridging to dimensional data modelling, pipeline development, and governed dashboard deployment - serving report audiences of hundreds and driving process automation initiatives.
Data engineering & integration:
Built Microsoft Fabric solutions including SQL Warehouses, Lakehouse, Dataflows Gen2, and Pipelines
integrated varied data sources including SQL databases, SharePoint, flat files, and web/REST API sources into governed, structured analytical layers.
Data modelling & transformation:
Designed star schema semantic models with slowly changing dimensions
developed Power Query/M transformation workflows aligned with medallion architecture principles
DAX & analytics:
Authored advanced DAX measure libraries supporting time intelligence, rolling averages, period comparisons, dynamic KPIs, and Row-Level Security and access rules aligned to organisational hierarchy for operational and executive reporting.
Dashboard design & UX:
?Designed interactive dashboards with guided data storytelling, parameterized visualizations, drill-through navigation, and adaptive conditional formatting - consistently delivering self-service business performance analytics for C-level audiences.
United Nations International Computing Center (UNICC)
Valencia
7 months
2019-02 - 2019-08
Power BI dashboards for senior stakeholders
Power BI Data Analyst (B2B)
Power BI Data Analyst (B2B)
Built advanced Power BI dashboards for senior stakeholders in Operations to give insight and drive efficiency in retention, provisioning and customer service including call centres
Collaborated with stakeholders on each stage of development life cycle; from identifying requirements and designing use cases and proof of concepts, testing data warehouse queries and data sets integrity, to building metrics, effective lay-outs, compelling visualisations and intuitive navigation
Organised workshops for users to guide through a data driven story, gather feedback, and improve if necessary
Relied on business intelligence best practices to make sure that reports are secure and sustainable, requiring no manual input to refresh and no or minimal maintenance, well documented with metrics defined in a dictionary and the code commented
Created reporting in line with Power BI best development practices, e.g. building a multi table reasonably normalized data model distinguishing between facts and dimensions, variable-based DAX formulas, or date dimension
Also, assisted with BAU, replaced partly manual reports with automated ones, maintained and updated existing reports, worked with IT to resolve consistency issues in SQL Server data warehouse
For Finance team
transformed P&L reporting suite into an automated cloud-based Power BI
reporting solution
Conceptualized and
developed dimensional data model to fully leverage Power BI DAX-based
analytical capabilities and enable advanced reporting scenarios, e.g. using
multiple Fact-table sources, multiple currencies, slowly changing dimensions
tables or different calendar conventions
Utilized M/Power
Query to develop efficient scripted data-preparation workflows to minimize ETL
time and free up resources for increased workload
Cambridge Education Centre
London
1 year
2017-10 - 2018-09
e2e development of self-service Power BI dashboards
Power BI Data Analyst
Power BI Data Analyst
Responsible for an e2e development of self-service Power BI dashboards to drive automated BI capabilities and democratize insight into acquisition cohorts, monetization, funnel / conversion analysis, churn, or engagement
For senior stakeholders perform financial analysis of casino overall performance and support them in answering a variety of operational and commercial questions regarding customer segmentation, customer maturity or customer behaviour
Deliver reporting to help relevant teams understand profitability of BTL promotional activities, manage affiliate marketing activities, or identify advantage gaming and abusive practices
SQL queried data warehouse to extract, transform and structure data so that the data is ready for ad-hoc analysis and reporting feed
Collaborate with IT to deliver quality and functionality improvement to our data infrastructure; work together to resolve inconsistency problems and make sure we have a faultless refresh of scheduled reporting
BGO Online Casino
London
2 years 3 months
2015-06 - 2017-08
Development of automated interactive Excel-based dashboards
People Insight Analyst / Developer
People Insight Analyst / Developer
Deliver actionable insight through development of automated interactive Excel-based dashboards and other reporting built to thoroughly documented requirements from stakeholders in HR and other functions; recommend best solutions to reduce build time and achieve best usability and ease of report navigation
Had a pivotal role in a full cycle 5 months? project aimed at developing a custom-made project management reporting solution to offer visibility of HR Project Portfolio and enable strategic decision making by HR Leadership
Create and analyse Call Center metrics to root cause productivity issues, measure advisors? performance and impact on customer satisfaction and upsells
Build Oracle queries as data source for dashboards and other reporting ensure they are robustly tested with logic applied in line with business guidelines
Responsible for on-going development of Single Source of Truth database for HR Insight to quickly and efficiently extract key HR data from multiple sources for use in ad-hoc reporting and analysis
Perform the role of Subject-Matter expert in data modelling and reporting design to drive forward the technical solutions available to HR Insight
Develop strong working relationship with key stakeholders in HR, Finance, IT and HR Technology to ensure consistency between data systems and best practices and guidelines are reflected in HR analytics framework
Sky Television, HR Insight
London
1 year 7 months
2013-09 - 2015-03
MI dashboard solutions and reporting tools
Team Leader Senior Reporting Analyst
Team Leader Senior Reporting Analyst
Used VBA to develop automated interactive MI dashboard solutions and reporting tools for newly acquired or prospective clients, or upgrade for existing clients, to offer insight into travel expenditure, enable performance measurement and identification of optimisation opportunities
Liaise with internal clients to manage requirements, review and upgrade current reporting systems; provide support in report navigation and thorough understanding of insight provided
Provide support to the team of 5 to guarantee the accurate and timely accomplishment of the assigned projects and tasks, including covering any team member absence or workload issue
Train and mentor team members to produce high quality error-free work; guide to actively contribute to development and sharing of skills, best practices and industry knowledge
Raise any identified issue concerning workload, processes or tools to Managers and Directors
Carlson Wagonlit Travel, Reporting Center of Excellence
Carlson Wagonlit Travel, Reporting Center of Excellence
Warsaw
Aus- und Weiterbildung
Aus- und Weiterbildung
2002 - 2006
Finance and Banking
MSc (2:1)
Warsaw School of Economics
Position
Position
Senior Power BI Consultant | Advanced Visual Analytics & Data Storytelling Expert
Kompetenzen
Kompetenzen
Top-Skills
MS Power BIDAXMS FabricSQLPower Query (M)Power BI ServiceTabular EditorDAX StudioReport BuilderLakehouseDatawarehouseDataflow Gen2Data Factory / PipelinesDirect LakeOneLakeDimension ModellingStar SchemaMedallion ArchitectureRow-Level SecuritySelf-Service BIData VisualizationBusiness Intelligence
Produkte / Standards / Erfahrungen / Methoden
Profile
15+ years building BI solutions that drive executive decision-making across international organizations including UN agencies and commercial enterprises.
Strong track record in financial performance reporting, trend analysis, and forecasting visualization for senior leadership.
8+ years in Power BI delivering end-to-end analytics: data ingestion, semantic modelling, advanced DAX, and executive dashboards for C-level audiences
Equally capable in analytical problem-solving, interactive visual analytics, and stakeholder communication ? skilled at translating ambiguous, evolving business questions into scalable, insight-driven reporting.
Proven ability to work in fast-paced, multi-team environments with proactive communication.
TECHNICAL COMPETENCIES
Dashboarding & Storytelling
Data Modelling
DAX & Metric Calculation
Visualization & UX
Data Transformation
Interactivity
Performance
PBI Service Governance & Delivery
Fabric Warehouse & Data Engineering
Stakeholder Collaboration
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Im Bereich Arbeitnehmerüberlassung / Personalvermittlung