Data Engineer (REF4367J)

Ranked as Hungary’s most attractive employer in 2025 (according to Randstad’s representative survey), Deutsche Telekom IT Solutions is a subsidiary of the Deutsche Telekom Group. The company provides a wide portfolio of IT and telecommunications services with more than 5300 employees. We have hundreds of large customers, corporations in Germany and in other European countries. DT-ITS recieved the Best in Educational Cooperation award from HIPA in 2019, acknowledged as the the Most Ethical Multinational Company in 2019. The company continuously develops its four sites in Budapest, Debrecen, Pécs and Szeged and is looking for skilled IT professionals to join its team.

We are seeking a talented and motivated Data Engineer with a passion for data visualization and reporting to join our growing data team. In this role, you'll be instrumental in designing, developing, and maintaining our data pipelines, with a primary focus on building impactful dashboards and reports using Microsoft Power BI. You'll work closely with business stakeholders to understand their analytical needs and translate them into effective data solutions.

What You'll Do:

• Design and Develop Data Models: Create and optimize robust data models within Power BI and other relevant data platforms to support complex reporting and analytical requirements.
• Power BI Dashboard Development: Lead the end-to-end development of interactive and visually appealing Power BI dashboards and reports, ensuring data accuracy, performance, and user-friendliness.
• ETL/ELT Pipeline Development: Build, maintain, and optimize data extraction, transformation, and loading (ETL/ELT) processes from various source systems into our data warehouse/data lake.
• Data Quality & Governance: Implement and enforce data quality checks and governance best practices to ensure the reliability and integrity of our data assets.
• Stakeholder Collaboration: Partner closely with business users, analysts, and other teams to gather reporting requirements, provide technical guidance, and deliver data solutions that meet their needs.
• Performance Optimization: Continuously monitor and optimize the performance of Power BI reports and underlying data models to ensure efficient data retrieval and responsiveness.
• Documentation: Create and maintain comprehensive documentation for data pipelines, data models, and Power BI solutions.
• Troubleshooting & Support: Provide support for existing data solutions and Power BI reports, troubleshooting issues and implementing timely resolutions.
• Azure Advantage: Utilize your knowledge of Microsoft Azure data services (e.g., Azure Data Factory, Azure Synapse Analytics, Azure SQL Database, Azure Data Lake Storage) to build scalable and efficient data solutions.

What You'll Bring:

• Proven experience as a Power BI Developer, or similar role with a strong focus on data visualization and reporting.
• Expert-level proficiency in Microsoft Power BI including data modeling, report development, and administration
• Very good expertise in DAX and in working with tabular models.
• Prooven experience in analyzing and resolving PowerBI performance issues
• Strong experience in designing and implementing ETL/ELT processes using tools like SQL Server Integration Services (SSIS), Azure Data Factory, or similar.
• Solid understanding of relational databases and strong SQL skills.
• Ability to translate complex business requirements into technical data solutions.
• Excellent analytical and problem-solving skills with a keen eye for detail.
• Strong communication and interpersonal skills, with the ability to collaborate effectively with both technical and non-technical stakeholders.
• Proficiency in English, both written and verbal.

Even Better If You Have:

• Hands-on experience with Microsoft Azure data services (e.g., Azure Data Factory, Azure Synapse Analytics, Azure SQL Database, Azure Data Lake Storage, Azure Databricks).
• Experience with other data visualization tools (e.g., Tableau, Qlik Sense) is a plus.
• Familiarity with data warehousing concepts and dimensional modeling.
• Experience with Python or other scripting languages for data manipulation.

* Please be informed that our remote working possibility is only available within Hungary due to European taxation regulation.

* Please be informed that our remote working possibility is only available within Hungary due to European taxation regulation.