Mariusz Błaszczyk
@mariuszbaszczyk
BI Developer at Lottomart who delivered 30+ Power BI dashboards and semantic models for business teams.
PolandWhat I'm looking for
At Lottomart, I’ve designed and delivered 30+ Power BI dashboards and semantic models, serving stakeholders across marketing, product, and operations. I’ve also built and optimized BigQuery pipelines to reduce scanned data volumes and reporting costs.
At British Council Foundation, I built Power BI dashboards, embedded applications, and analytical tools for international stakeholders. I also designed Azure Synapse Analytics pipelines and automated operational processes with Power Apps and Power Automate.
At Lumen Technologies Poland, I delivered reports and applications for EMEA business teams and designed the On-net Building Usage Dashboard. The dashboard helped teams view the geographic distribution of network infrastructure and was adopted across operational departments.
At Waldi Sp. z o.o., I delivered BI reporting for financial results, cost control, revenue tracking, and bonus calculations. I introduced OLAP cubes and Data Warehouse architecture, and I’m Microsoft Certified: Data Analyst Associate (PL-300).
Experience
Work history, roles, and key accomplishments
BI Developer
Lottomart
Jun 2024 - Present (2 years 3 months)
Designed and delivered 30+ Power BI dashboards and semantic models in PBIP format, serving 50–200 stakeholders. Built and optimized BigQuery pipelines and maintained a Git-based development lifecycle in Bitbucket.
Data Editor
Electronic Arts
Jan 2012 - Present (14 years 8 months)
Collecting, analysing, and editing Polish Ekstraklasa player data for FIFA / EA FC game titles using the EA Web Tool, in line with milestone schedules and delivery dates.
Power BI Developer
British Council Foundation
Nov 2022 - May 2024 (1 year 6 months)
Built Power BI dashboards, embedded applications, and analytical tools for international stakeholders. Designed Azure Synapse Analytics pipelines and automated operational processes using Power Apps and Power Automate.
Senior Business Applications Analyst
Lumen Technologies Poland
May 2021 - Oct 2022 (1 year 5 months)
Delivered Power BI reports and applications for EMEA business teams, including an On-net Building Usage Dashboard adopted across multiple departments. Administered SharePoint and supported Office 365 workflows.
BI Data Analyst
Waldi Sp. z o.o.
May 2012 - Apr 2021 (8 years 11 months)
Delivered end-to-end BI reporting using Power BI and Oracle BI, covering financial results, cost control, and revenue tracking. Progressed from analyst to lead BI developer over 9 years, introducing OLAP cubes and Data Warehouse architecture.
Education
Degrees, certifications, and relevant coursework
Poznań University of Economics and Business
MSc & BSc, Finance and Accounting
2006 - 2011
Earned MSc and BSc degrees in Finance and Accounting with a specialization in Capital Investments and Corporate Finance Strategies.
Availability
Location
PolandAuthorized to work in
Salary expectations
Social media
Job categories
Interested in hiring Mariusz?
You can contact Mariusz and 90k+ other talented remote workers on Himalayas.
Message MariuszGet matched with your dream remote job
Sign up now and join over 250,000+ remote workers who receive personalized job alerts, curated job matches, and more for free!
