Kamil K.

Senior BI Architect

Kamil is a Senior BI Architect with over 10 years of experience designing and delivering enterprise-grade reporting systems. His technical expertise spans Power BI, Tableau, and SQL, with deep specialization in semantic data modeling, advanced DAX optimization, and ETL performance tuning using tools such as Azure Data Factory (ADF), Alteryx, and SimCorp.

He plays a key role in leading dashboard migrations, establishing data governance frameworks, and automating reporting processes to improve accessibility and reduce operational overhead. Known for his ability to translate complex datasets into clear, impactful insights, Kamil enables organizations to make faster, more informed decisions.

Kamil has collaborated with clients across Europe on major BI transformation initiatives and holds multiple certifications validating his technical leadership. His solutions are built with scalability, clarity, and long-term maintainability in mind—making him a trusted advisor in modern data architecture.

Main expertise

  • Microsoft Power BI
    Microsoft Power BI 6 years
  • Tableau
    Tableau 5 years
  • SQL
    SQL 10 years

Other skills

  • Snowflake
    Snowflake 2 years
  • Databricks
    Databricks 2 years
  • Azure Data Factory
    Azure Data Factory 2 years
Kamil

Kamil K.

Poland

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Selected experience

Employment

  • Power BI Developer

    Astek - 1 year 5 months

    • Led the transition from Qlik Sense to Power BI by analyzing existing systems and ensuring feature parity, performance, and usability in the new environment.
    • Created and developed over 30 Power BI dashboards tailored to specific business requirements, enabling real-time insights and improved decision-making.
    • Built robust Power BI semantic models using optimized star schemas and advanced DAX measures to enhance performance and scalability.
    • Developed Power Apps solutions integrated with Power BI to automate workflows and increase user interactivity.
    • Wrote complex Power Query (M) scripts for data transformation and cleansing across multiple sources.
    • Automated data exports and reporting through custom scripting, enabling users to generate personalized reports via Excel.

    Technologies:

    • Technologies:
    • MSSQL MSSQL
    • T-SQL T-SQL
    • SQL SQL
    • Oracle Oracle
    • Azure Azure
    • Microsoft Power BI Microsoft Power BI
    • Azure Data Factory Azure Data Factory
    • Tableau Tableau
    • Microsoft Power Automate Microsoft Power Automate

  • SimCorp Coric Developer

    Luxoft - 6 months

    • Created report templates, reusable library components, and custom data views using Layout Builder to enhance the consistency and maintainability of client-facing reports.
    • Modified and expanded data mapping logic in Data Mapper to align reporting workflows with evolving business needs and improve data accuracy.
    • Designed, implemented, and optimized stored procedures in MS SQL to support new reporting features and modernize legacy logic.
    • Automated reporting processes and improved translation workflows using VBA, resulting in greater operational efficiency and reduced manual effort.

    Technologies:

    • Technologies:
    • MSSQL MSSQL
    • SQL SQL
    • VBA VBA

  • SimCorp Dimension Consultant (DWH)

    Elgin White B.V. - 4 months

    • Analyzed existing data warehouse structures, including fact tables, dimensional tables, and data marts, to identify performance bottlenecks.
    • Proposed and implemented optimization strategies that improved data loading efficiency and reduced ETL runtimes significantly.
    • Refined and fine-tuned SQL queries using Oracle SQL Developer to enhance system responsiveness and increase query performance.
    • Designed and executed comprehensive performance testing scenarios under varying system loads to verify improvements.
    • Collaborated closely with the DBA team to deploy optimizations and ensure long-term performance stability in production systems.

    Technologies:

    • Technologies:
    • SQL SQL
    • Oracle Oracle
    • ETL ETL

  • Power BI Developer & Tableau Developer

    Astek - 3 years 10 months

    • Created and deployed advanced Power BI dashboards using custom DAX logic and optimized semantic models, enabling dynamic insights and executive-level reporting.
    • Facilitated self-service analytics by training business users and implementing secure row-level access controls in Power BI.
    • Delivered comprehensive Tableau solutions by overseeing dashboard development, data preparation, and performance optimization.
    • Migrated Tableau data sources to Databricks and BigQuery, ensuring efficient data processing and real-time availability.
    • Led the development of ETL pipelines using Tableau Prep and Azure Data Factory, enhancing data transformation workflows.
    • Managed the Tableau Server environment, developed reusable templates, and implemented version control and governance best practices.

    Technologies:

    • Technologies:
    • Databricks Databricks
    • MSSQL MSSQL
    • T-SQL T-SQL
    • SQL SQL
    • Azure Azure
    • Google Cloud Google Cloud
    • BigQuery BigQuery
    • PL/SQL PL/SQL
    • Snowflake Snowflake
    • Microsoft Power Automate Microsoft Power Automate

  • Integration Consultant

    SimCorp - 3 years 10 months

    • Designed and implemented data warehouse architecture within the SimCorp Dimension platform to manage complex financial datasets.
    • Developed advanced SQL and PL/SQL procedures to support high-performance data extraction, transformation, and reporting pipelines.
    • Optimized Oracle database assets to improve system performance and reduce data processing times.
    • Configured and managed SimCorp’s ETL workflows, ensuring reliable data flow across internal modules and external reporting tools.
    • Enhanced reporting capabilities using Coric and Crystal Reports, delivering visually rich and timely insights for analysts and managers.
    • Conducted unit testing, quality assurance, and documented all integration procedures to ensure data integrity and system maintainability.

    Technologies:

    • Technologies:
    • SQL SQL
    • Oracle Oracle
    • Crystal Reports Crystal Reports
    • VBA VBA
    • PL/SQL PL/SQL
    • XSLT
    • XML XML

  • Tableau & Power BI Developer

    Accenture - 2 years

    • Created and maintained Power BI and Tableau dashboards, providing actionable insights into financial operations and key performance indicators (KPIs).
    • Built efficient Oracle-based data warehouses, improving ETL performance and report refresh times.
    • Led SQL performance tuning efforts and automated validation pipelines to ensure data accuracy across reporting layers.
    • Collaborated with cross-functional teams to gather requirements, design dashboard UX, and ensure continuous delivery of analytics products.
    • Produced technical documentation, mentored junior analysts, and assisted with Tableau Server deployment and maintenance.

    Technologies:

    • Technologies:
    • MSSQL MSSQL
    • T-SQL T-SQL
    • SQL SQL
    • Oracle Oracle
    • Microsoft Power BI Microsoft Power BI
    • PL/SQL PL/SQL
    • ETL ETL
    • PowerShell PowerShell
    • Tableau Tableau

Education

  • MSc.Quantitative Methods in Economics and Information Systems

    SGH Warsaw School of Economics · 2011 - 2017

  • BSc.International Economics

    Cracow University of Economics (UEK) · 2008 - 2011

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