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Location

Poland

Rate

$40  / per hour

Years of experience

8+

About

I am a Senior BI/DW Engineer with 9 years of experience in ETL, DWH, and BI development, primarily in the banking sector. I have extensive expertise in building reliable, consistent data warehouses and creating visualizations for performance tracking and financial analysis. My work has involved gathering requirements, system modeling, and developing ETL processes for global banks like Credit Suisse and UBS. I have also been involved in dashboard creation using tools like QlikSense, Tableau, and OBIEE, ensuring that data is presented effectively to drive decision-making. In addition to my technical skills, I have served as a Scrum Master, leading Agile teams through the development process. I have a strong background in relational databases, data modeling, and system architecture. My experience spans multiple tools and technologies such as Oracle, MS SQL Server, Informatica PowerCenter, and AWS. I am a dedicated team player, always eager to learn new technologies and share knowledge with colleagues. My ability to work within Agile Scrum environments and lead teams has further enhanced my capability to deliver efficient and well-structured BI solutions. Outside of work, I enjoy sports, particularly football, and am an avid Real Madrid supporter.

Tech Stack

Qilk Sense, Agile, AWS, Bash, Business Intelligence, Informatica, Java, MS SQL, Obiee, Oracle, PL/SQL, Python, SAP, Tableau, UML, XML

Experience

  • Designing and implementing Extract, Transform, Load (ETL) processes to ensure accurate and efficient data movement between systems.
  • Building and maintaining data warehouse architectures for large financial institutions, ensuring efficient data storage and retrieval.
  • Developing dashboards in tools like QlikSense, Tableau, and OBIEE to visualize data for performance tracking, financial analysis, and decision-making.
  • Collaborating with stakeholders to gather business requirements and translate them into system models for development.
  • Serving as Scrum Master, facilitating Agile development processes and ensuring efficient team collaboration and project delivery.
  • Conducting functional testing and unit testing to ensure the accuracy and quality of developed ETL processes and systems.
  • Maintaining and enhancing legacy codebases to ensure continued system performance and reliability in critical financial environments.

Employment history

Senior ETL/BI Developer & Scrum Master, Aptiv April 2020 - Present
  • Developed ETL processing for data integration and transformation.
  • Gathered business requirements and modeled system architecture.
  • Built interactive dashboards in QlikSense for performance tracking and analysis.
  • Played the role of Scrum Master, ensuring smooth Agile processes within the team.
Senior DWH/ETL/BI Developer, Credit Suisse April 2018 - March 2020
  • Developed ETL processes for data warehouse integration.
  • Designed system models for cost analysis and financial forecasting.
  • Built dashboards in Tableau and OBIEE to visualize data for business users.
  • Managed data warehouse for internal company costs and vendor payments.
DWH/BI/ETL Developer (Authorized Officer), UBS August 2016 - March 2018
  • Developed ETL processes for global transaction reporting.
  • Modeled systems for efficient data processing and storage.
  • Built Data Mart reports to track transaction correctness and compliance.
  • Performed functional testing and maintained legacy code for system improvements.
Junior DWH/ETL Developer, Credit Suisse August 2014 - July 2016
  • Developed ETL processes for transaction reporting and data warehousing.
  • Designed system models for daily transaction snapshots.
  • Performed unit testing and maintained legacy code for system reliability.
  • Contributed to system development using Oracle and PL/SQL.
Intern (Development Consultant), QAD August 2012 - July 2014
  • Customized ERP systems based on client requirements.
  • Upgraded ERP systems and migrated customizations for clients.
  • Participated in system testing and troubleshooting during deployments.
  • Collaborated with a small team to ensure system stability and client satisfaction.

Education history

Wroclaw University of Technology 2013 - 2014 Master’s Degree in Computer Science
Wroclaw University of Technology 2009 - 2013 Bachelor’s Degree in Computer Science
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