BI Developer

Summary

Andersen is hiring a BI Developer in Germany to support a major public-sector analytics initiative, modernizing legacy data systems and building secure, scalable BI platforms for improved reporting and decision-making.

The customer is a large international technology provider delivering end-to-end digital solutions for enterprise-level organizations. The company focuses on IT consulting, cloud services, cybersecurity, and managed operations, supporting clients across various industries with complex digital-transformation needs. With decades of experience, the customer emphasizes innovation, reliability, and high security standards.

The project is a large-scale BI and data-analytics initiative in the European public sector, aimed at modernizing government services through centralized reporting and data-driven decision-making. It focuses on transforming legacy data systems into secure, scalable analytics platforms that support efficient and transparent digital public administration.

Responsibilities

• Developing, maintaining, and optimizing ETL/ELT pipelines for data ingestion, transformation, and loading.
• Designing and maintaining analytical data models to support reporting and BI use cases.
• Analyzing data sources, defining data requirements, and ensuring data quality and consistency.
• Monitoring and improving the performance of ETL processes and database queries.
• Validating, profiling, and cleansing data as part of data quality initiatives.
• Working with DWH/Data Lake environments and contributing to architectural improvements.
• Building dashboards, reports, KPIs, and visual analytics using BI platforms.
• Collaborating with business analysts and stakeholders to gather reporting and analytics requirements.
• Producing technical documentation, data dictionaries, process maps, and design specifications.
• Participating in testing, deployment, and release activities for BI components.
• Providing support to end users and investigating data- or report-related incidents.

Requirements

• Experience in BI development and working with enterprise DWH/ETL environments for 5+ years.
• Strong SQL skills, including complex queries, performance tuning, and window functions.
• Hands-on experience building ETL/ELT pipelines using tools such as Informatica, SSIS, Talend, Pentaho, dbt, or similar.
• Solid understanding of data modelling techniques, including star schema, snowflake, SCD, normalization, and denormalization.
• Knowledge of DWH architectures and data platforms such as DWH, Data Lake, and Lakehouse.
• Experience integrating data from multiple sources, including databases, APIs, files, and cloud services.
• Ability to develop dashboards, analytical reports, KPIs, and metrics for business stakeholders.
• Experience optimizing ETL pipelines and SQL query performance.
• Understanding of data quality, data lineage, and data governance practices.
• Familiarity with a scripting language for automation or data processing (Python or R preferred).
• Experience using Git and CI/CD practices for BI/ETL workflows.
• Proficiency with BI platforms such as Power BI, Tableau, Qlik, or Looker.
• Level of English – from Intermediate+ and above.
• Level of German – from Intermediate+ and above.

Reasons to join us

• Experience in teamwork with leaders in FinTech, Healthcare, Retail, Telecom, and others. Andersen cooperates with such businesses as Samsung, Siemens, Johnson & Johnson, BNP Paribas, Ryanair, Mercedes, TUI, Verivox, Allianz, T-Systems, etc..
• The opportunity to change the project and/or develop expertise in an interesting business domain.
• Job conditions – you can work both fully remotely and from the office or can choose a hybrid variant.
• Guarantee of professional, financial, and career growth The company has introduced systems of mentoring and adaptation for each new employee.
• The opportunity to earn up to an additional 1,000 USD per month, depending on the level of expertise, which will be included in the annual bonus, by participating in the company's activities.
• Access to the corporate training portal, where the entire knowledge base of the company is collected and which is constantly updated.
• Bright corporate life (parties / pizza days / PlayStation / fruits / coffee / snacks / movies).
• Certification compensation (AWS, PMP, etc).
• Referral program.
• English courses.
• Private health insurance and compensation for sports activities.

Join us