Andrzej G.

Andrzej G.

BI Consultant

United Kingdom
Trusted member since 2024
15 years of experience

He is highly proficient in Power BI, SQL Server, Azure Synapse, Data Factory, and Data Lake, with deep expertise in DAX and MDX for creating robust, insight-driven data models.

He led the migration of an on-premises reporting platform at Exclusive Networks, transforming their SQL Data Warehouse and QlikView infrastructure into a scalable Azure Synapse and Power BI solution used globally.

Andrzej excels at translating complex technical data into actionable business insights, making him a valuable contributor to data-driven strategies and decision-making.

Main expertise

SQLSQL15 years
Microsoft Power BIMicrosoft Power BI5 years
ETLETL15 years
Data AnalyticsData Analytics15 years
19+

Experience6

Senior Global BI Developer

Exclusive Networks Ltd
Cybersecurity
Apr 2021 · 5y 6m
  • Led the migration of an on-premises reporting service to Microsoft Azure, utilizing Synapse Analytics and Power BI to enhance cloud-based analytics and performance.
  • Implemented governance and monitoring frameworks to ensure data quality, security, and performance.
  • Developed and maintained a data warehouse, integrating it with ERP systems to provide seamless reporting solutions.
  • Supported users across 40+ countries, ensuring the smooth integration of local ERP systems into a global solution.
Qlik ViewQlik View
Qlik SenseQlik Sense
MSSQLMSSQL
T-SQLT-SQL
SQLSQL
12+
BI-NET

BI Consultant

BI-NET
Information Technology (IT) and Services
Jun 2014 - Mar 2021 · 6y 9m
  • Designed and developed OLAP multidimensional and tabular cubes to support business intelligence and financial performance measurement.
  • Created Power BI reports and dashboards using deployment pipelines and DataFlows, enhancing forecasting, cost accounting, and billing processes.
  • Optimized data load times, reducing the monthly cost accounting process from 8 hours to 20 minutes.
  • Implemented a metadata-driven approach for ETL development, improving efficiency and scalability.
  • Supervised junior developers and trained end users to maximize the effectiveness of BI solutions.
Qlik ViewQlik View
Qlik SenseQlik Sense
MSSQLMSSQL
T-SQLT-SQL
SQLSQL
11+

DWH Developer - Freelance

Liberty Ubezpieczenia
Insurance
Jun 2014 - Aug 2015 · 1y 2m
  • Developed data warehouses using MS SQL Server.
  • Designed and implemented OLAP cubes with SSAS.
  • Managed ETL processes using SSIS.
MSSQLMSSQL
T-SQLT-SQL
SQLSQL
Data EngineeringData Engineering
JiraJira
10+
Infovide-Matrix

BI Consultant

Infovide-Matrix
Information Technology (IT) and Services
Jun 2008 - May 2014 · 5y 11m
  • Developed high-level data mart models and delivered reports to senior business groups and major clients over nearly six years;

  • Collaborated with executives and directors to identify corporate information needs and implemented internal systems for storing and retrieving critical business data;

  • Improved decision-making and enhanced the availability of key business insights through effective data management and reporting.

PHPPHP
MySQLMySQL
MSSQLMSSQL
T-SQLT-SQL
SQLSQL
10+
Syndatis

Business Analyst

Syndatis
Information Technology (IT) and Services
Jul 2007 - May 2008 · 10m
  • Conducted process analysis and gathered requirements to enhance system functionality;

  • Developed reports to meet business needs and provided actionable insights;

  • Automated the application testing process to improve efficiency and reduce errors;

  • Provided ongoing application support to ensure smooth operations and user satisfaction.

MSSQLMSSQL
T-SQLT-SQL
SQLSQL
Data AnalyticsData Analytics
Visual StudioVisual Studio
4+

Risk Department Manager

Bank Spółdzielczy w Brodnicy
Banking and Finance
Dec 2005 - Jan 2007 · 1y 1m
  • Automated the financial statement generation process, improving efficiency and accuracy;

  • Managed liquidity, interest rate, and exchange risks to ensure financial stability;

  • Prepared financial analysis and reports to support strategic decision-making;

  • Contributed to financial planning to align with organizational goals and objectives;

  • Designed contingency plans to mitigate financial risks and ensure business continuity;

  • Conducted business process analysis to identify areas for improvement and optimize operations.

MSSQLMSSQL
T-SQLT-SQL
SQLSQL
Data ScienceData Science
Data EngineeringData Engineering
4+

Engineering excellence

All BI Consultants who have applied to Proxify are scored from 0 to 300 on engineering excellence, one of the five parameters we evaluate. This score reflects engineering excellence only, based on interviews, take-home assignments, live coding sessions, and/or on-the-job performance reviews. The curve shows how all evaluated BI Consultants are distributed across that range, where our acceptance threshold for this parameter sits, and where Andrzej stands.

050100150200250300Engineering excellence scoreShare of engineersmedianmeanProxifyacceptancethreshold
Andrzej
Score 199 · Top 7% of engineers

Certificates 7

Microsoft Corporation
Microsoft Certified: Azure Data Engineer AssociateMicrosoft Corporation

Issued Mar 2025

MSSQLMSSQL
SQLSQL
Azure Blob storageAzure Blob storage
Microsoft Power BIMicrosoft Power BI
Azure Data FactoryAzure Data Factory
GitGit
Data AnalyticsData Analytics
Azure SynapseAzure Synapse
Data ModelingData Modeling
ETLETL
Dimensional ModelingDimensional Modeling
Fact Data ModelingFact Data Modeling
Azure StackAzure Stack
Microsoft Corporation
Microsoft Certified: Azure Data FundamentalsMicrosoft Corporation

Issued Dec 2021

MSSQLMSSQL
SQLSQL
Azure Blob storageAzure Blob storage
Azure Data FactoryAzure Data Factory
Azure SynapseAzure Synapse
ETLETL
Azure StackAzure Stack
Microsoft Corporation
Microsoft Certified: Azure Data Engineer AssociateMicrosoft Corporation

Issued Mar 2025

MSSQLMSSQL
SQLSQL
Azure Blob storageAzure Blob storage
Microsoft Power BIMicrosoft Power BI
Azure Data FactoryAzure Data Factory
GitGit
Data AnalyticsData Analytics
Azure SynapseAzure Synapse
Data ModelingData Modeling
ETLETL
Dimensional ModelingDimensional Modeling
Fact Data ModelingFact Data Modeling
Azure StackAzure Stack
Do you want to know more about Andrzej’s certifications?Book a call

Education

UNIVERSITY OF WARSAW
UNIVERSITY OF WARSAW
Business Statistics and Data Mining2008 - 2009
UNIVERSITY OF ECONOMICS
UNIVERSITY OF ECONOMICS
IT & Econometrics1998 - 2003

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